IndraLab
Statements
CALM1 binds ACOD1. 1000 / 5512
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5512
sparser
"Two materials from the acrylic resin group, Jet denture repair acrylic and Duralay, showed higher pushout forces, indicating a better bond with Lucitone 199 CAD-CAM denture base material compared with other tested materials, including composite resin with bonding agent (EZ PickUp, Quick Up, and Triad gel) and composite resin without bonding agent (Chairside)."
sparser
"As seen in the limited contemporary literature on subperiosteal implants (Table xref ), despite the use of CAD‐CAM techniques and improved perioperative optimization, subperiosteal implants still have unpredictable outcomes in comparison to endosseous osseointegrated implants, with the most common failures continuing to be hardware exposure and mobility."
sparser
"On the other hand, the highest values were noted when silane with MDP was applied prior to the use of RelyX Ultimate on the VE surface, while no significant differences in the μSBS values were observed when that resin cement was applied to the other CAD–CAM composites, regardless of the bonding strategy."
sparser
"AM-fabricated FDPs had significantly higher surface roughness than milled ones, yet showed better margin quality with fewer marginal defects CONCLUSIONS: Compared with CAD-CAM milling, the advanced additively manufactured zirconia 3-unit FDPs provided better accuracy, improved margin quality, and clinically acceptable fit, but higher surface roughness, and may be a promising alternative for clinical applications."
sparser
"The CAD-CAM guided templates have many applications in dentistry such as implant placement and endodontic access preparations, the guided implant osteotomy presents an accurate protocol for implant placement in the preplanned position with less surgical time and few post-surgical complications."
sparser
"A specific software that allows the transition from the two-dimensional previsualization of the smile to a three-dimensional volumetric study and then a CAD-CAM processing for the realization of the prosthetic product were used, as also described by Coachman et al. in 2017 [ xref ]."
sparser
"Materials and methods: Twelve ( N = 12) blocks (4 mm × 4 mm × 2 mm for parallel axis; 5 mm × 4 mm × 2 mm for perpendicular axis) of lithium disilicate glass-ceramic (IPS e.max CAD, Ivoclar AG) and CAD-CAM resin composite (Tetric CAD, Ivoclar AG) were obtained and repaired with direct resin composite (Clearfil AP-X, Kuraray)."
sparser
"Resin-based materials have also been developed for the CAD-CAM system, in order to decrease the wear of the antagonist's tooth and provide indirect restorations that mimic the teeth's properties as elastic modulus, consequently reducing the occurrence of fractures commonly seen in brittle materials. xref , xref , xref Besides, even if failures can still occur, the repair of composite restorations is easier due to the similar microstructure between resin-based materials through their chemical compatibility and well-described surface treatments and bonding agents. xref , xref However, resin composite restorations may not perform as well if their surface wear and roughness are increased."
sparser
"For both patients, preliminary intraoral and extraoral facial scans were made and then brought into computer-aided design and computer-aided manufacture (CAD-CAM) software program (Zirkonzahn Modellier; Zirkonzahn USA Inc) to fabricate a digital waxup prior to tooth preparation ( xref A and B)."
sparser
"The search for more resilient and less stiff restorative materials combined with the consolidation of the computer-aided design and computer-aided manufacturing (CAD-CAM) technology in dentistry has led to the development of hybrid materials and high-performance polymers. xref xref xref xref The first hybrid material introduced in dentistry was a polymer-infiltrated ceramic-network (PICN), which is composed of a dominant ceramic network infiltrated with a polymer matrix."
sparser
"The introduction of these CAD-CAM restorative materials with different microstructure and composition raised doubts regarding which type of surface treatment, adhesive and cement can guarantee the longevity of the treatment. xref xref xref xref xref xref xref Although most studies reported good bond strength results, xref xref xref xref it is important to characterize how the different bonding approaches affect the fracture resistance of these CAD-CAM restorative materials, especially after being subjected to conditions that simulate the oral environment."
sparser
"Among the evaluated materials, the direct repair resin composite showed the highest values of mean roughness (Ra) followed by the CAD-CAM resin composite, while the lithium disilicate glass-ceramic depicted lower and stable values of roughness when comparing the baseline and brushed conditions."
sparser
"Direct resin-based materials are known as excellent and versatile options for restorative purposes, xref , xref , xref due to their good mechanical properties and polishing potential, which make these materials suitable for aesthetic restorations. xref However, they also present a higher wear susceptibility in the presence of mechanical and abrasive stimulus when compared to CAD-CAM resin composites and dental ceramics, xref which was corroborated by the present study ( xref )."
sparser
"The CAD-CAM ceramic materials present excellent mechanical behaviour and aesthetic pleasant, provided by their microstructure that contains a glass-matrix and also crystal arrangement in the case of lithium disilicate. xref In this sense, ceramic materials are harder and more resistant to abrasion than resin composites."
sparser
"For repaired CAD-CAM resin composite, the profile pattern was deeper but also homogenous between the restorative and repair materials ( xref ), being the step at the interface lower, probably due to the closer wear behaviour and higher similarity of polymeric materials when compared to the ceramic. xref As a result, a less conspicuous interface and reduced complications, such as biofilm accumulation, are anticipated at the interface of resin-based restorations."
sparser
"The purpose of this in vitro study was to evaluate the effect of different disinfection protocols (1% sodium hypochlorite, denture cleanser gel, and effervescent tablet) on the water contact angle and microhardness of different CAD-CAM PMMA denture base materials by comparing them with a heat-polymerized PMMA."
sparser
"This dental technique describes a fully digital workflow for the design and fabrication of interim removable partial dentures (RPDs) using a polycarbonate-based computer-aided design and computer-aided manufacture (CAD-CAM) material with custom-designed prosthetic teeth as an alternative to conventional interim RPDs with unesthetic metal clasps."
sparser
"For example, computer-aided-design and manufacture (CAD-CAM) has been used in O&P for over 40 years, xref especially in prosthetics, yet the use of CAD-CAM in clinical orthotics practice is still relatively small compared to conventional fabrication of positive model creation, model rectification, thermoforming, lamination, and other processes."
sparser
"Indeed, some studies showed that chemical treatment via silane application could increase the bond strength of resin cements to CAD–CAM composites, as well as the retention strength of CAD–CAM composite crowns [ xref ], and the interfacial fracture toughness of resin cements with some CAD–CAM composites [ xref ]."
sparser
"Although the effect of silane and an adhesive containing MDP and/or silane on the bond strength to lithium disilicate and zirconia ceramics has been previously evaluated [ xref , xref ], to the extent of authors’ knowledge, no studies were found evaluating these variables in CAD–CAM composites."
sparser
"Therefore, the current study aimed to evaluate the effect of different bonding strategies, including the use of universal adhesive systems and silane with or without MDP, on the micro-shear bond strength (μSBS) of three dual-cured resin cements on three commercially available CAD–CAM composites."
sparser
"One article studied the durability and retention of attachments, one article analyzed the performance of PEEK materials, one article researched the fatigue resistance of a denture base, one article investigated the corrosion of RPD framework cast and milled Co–Cr, one article studied the strength and clasp retention and deformation of acetal and PEEK materials, and one evaluated changes in mass and surface morphology of CAD–CAM fiber-reinforced composites for the prosthetic framework."
sparser
"These findings are similar to those shown by El-Damanhoury and Gaintantzopoulou [ xref ], who stated that this outcome could be attributed to the micro-interlocking created by hydrofluoric acid, which increases the bond strength to higher values than the cohesive strength of that CAD–CAM composite."
sparser
"In addition, since this study focused only on the interface created between adhesive systems and CAD–CAM composites, studies involving the dental substrate are also required to provide a better understanding of such a complex interaction between bonding systems and tooth substrate."
sparser
"This opens the door to using modern metal-free ceramic constructs to restore children's dentition, resulting in stronger, more attractive, and more effective restorations. xref In the long run, CAD-CAM technology that is quick, precise, and does not require a lot of time may be the best option for pediatric patients."
sparser
"Modern digitalization in denture manufacturing protocols, including subtractive and addictive manufacturing assisted with computer-aided design and manufacturing (CAD-CAM), have been introduced to overcome the traditional method’s limitations and provide additional benefits, such as the advantage of facilitating the ideal fabrication of facial prostheses."
sparser
"Durability, elastic property, low weight, biocompatibility, and repairability are some of the benefits. xref Beretta and Cirulli xref developed a metal-free CAD-CAM device intending to produce safe appliances for special needs patients, who require regular magnetic resonance imaging (MRI) in the head region to monitor certain diseases such as epilepsy or vascular problems."
sparser
"CAD-CAM processing begins with a traditional impression from the dentist, which is then digitized in the lab. xref Sirona introduced the first chairside CAD-CAM technology, the CEREC system, which allows dentists to design and fabricate restorations right in the dental office. xref By using chairside and laboratory CAD-CAM manufacturing methods, dental restorations can be made more rapidly."
sparser
"Four commercially available CAD-CAM RC blocks were used in this study: Cerasmart 300 (CS300; GC, Tokyo, Japan), Katana Avencia P Block (KAP; Kuraray Noritake Dental, Niigata, Japan); KZR HR3 Gamma Theta (HR3; Yamakin, Osaka, Japan), and Estelite P block (ESP; Tokuyama Dental, Tokyo, Japan)."
sparser
"As CAD-CAM products of various manufacturers are released in the dental field, comparative studies on closed and open CAD-CAM systems were being carried out. xref xref xref Jang et al. xref compared three-unit bridges fabricated by combining open type Exocad (Exocad, Darmstadt, Germany) and EZIS HM (DDS, Seoul, Korea) to those fabricated by representative closed type."
sparser
"The success of CAD-CAM crown is determined by several factors: esthetic aspect, fracture resistance, and marginal adaptation. xref Marginal and internal fit is significant in assuring the success of crowns, xref xref and can be affected by cement space, marginal design, cement film thickness, seating force, material type, and CAD-CAM system used. xref xref xref Inadequate marginal fit of a crown may increase microleakage and plaque accumulation, which consequently causes caries and periodontal diseases. xref In the conventional crown, a cement space of 25 - 50 µm is required to obtain an ideal marginal fit. xref xref Considering life expectancy of crowns, it has been reported that a marginal gap of 100 - 200 µm is clinically acceptable. xref xref Appropriate internal gap is another crucial factor dedicating to the success of crown."
sparser
"CAD-CAM crowns are usually fabricated by processing CAD-CAM blanks. xref The milling process can influence marginal and internal gap and therefore should be precise. xref In order to assess the accuracy of the milling process, the surface of the final crown should be compared to the CAD data. xref "
sparser
"Current study reported that CAD-CAM systems achieved marginal gaps which were below 80 µm. xref Although there have been arguments regarding the clinically acceptable marginal gap, a number of researches have accepted the marginal gap of 120 µm as described by McLean and von Fraunhofer. xref xref xref Thus, all the marginal gaps in this study fit the clinically acceptable level."
sparser
"Further studies on the length of the prosthesis or area of the edentulous part are required, xref and a comparative study using a new measurement method seems to be necessary. xref Follow-up studies using various materials are also needed. xref The fit and trueness of the zirconia crowns fabricated by cross application of open CAD-CAM systems were compared in this study."
sparser
"The aim of this study was to investigate the influence of different convergence angles of abutment teeth and different cement spaces on internal adaptation of anterior fixed dental prostheses (FDPs) fabricated with a computer-aided design-computer-aided manufacturing (CAD-CAM) system."
sparser
"With the popularity of computers and the development of computer-aided design and computer-aided manufacturing (CAD-CAM), yttrium-stabilized tetragonal zirconia polycrystals (Y-TZP) have become the most widely used choice by dentists and patients for their excellent biocompatibility and chemical stability [ xref , xref ]."
sparser
"Three-unit screw-retained FDPs (n=50) on two implants (n=100) were divided into groups (n=10) based on the implant-abutment connection and material of the supra-structure: (1) abutment-free monolithic CAD-CAM zirconia FDP (Abut-free-Zr), (2) abutment-free veneered titanium FDPs (Abut-free-Ti), (3) monolithic zirconia FDPs with titanium base abutments (Zr-Ti-Base), (4) monolithic zirconia FDPs on multi-unit abutments (Zr-MU), (5) veneered titanium FDP on multi-unit abutments (Ti-MU)."
sparser
"This study applied a within-subject comparison of two denture forms: computer-aided design and computer-aided manufacturing (CAD-CAM) dentures designed based on the bone-support concept (control group) and CAD-CAM dentures designed based on the neutral-zone concept (test group)."
sparser
"In the case of the double crowns fabricated by CAD-CAM in this study, the surface resistance is increased less by the wedge effect than by the wear over the wearing period, accompanied by a stronger joint of both crowns, whereas a sufficient retention force is ensured over the tested period."
sparser
"For an implant restoration it is possible to choose between three types of abutments: stock (not customizable) commercial abutment; partially customized by milling but standard machined connection; and complete customized by casting or by using computer-aided design- computer-aided manufacturing (CAD-CAM) technology (milled or sintered) [ xref ]."
sparser
"The variations in the outcomes observed in screw-retained CAD-CAM restorations, depend on the technique used to measurement the marginal fit: SEM, stereomicroscope, optic microscope, scanning laser microscope or photogrammetry [ xref , xref , xref , xref , xref , xref , xref , xref , xref ]."
sparser
"In computer-aided design and computer-aided manufacturing (CAD-CAM) restorations, a not-exact fit could result from: (1) limitations in designing restorations with a software program; (2) hardware limitations regarding 3D image capturing; (3) characteristics of the milling process [ xref , xref ]."
sparser
"Furthermore, the appearance of zirconia materials has been enhanced through lowering the overall opacity and adding pigments to provide color. xref In addition, the use of computer-aided design and computer-aided manufacturing (CAD-CAM) technology to perform automated design and milling to achieve the full anatomical contour would serve to lower the production costs and be time-saving. xref "
sparser
"A clinical trial of a randomized, controlled, parallel group was designed in order to compare the wear of first molar antagonist enamel, opposing CAD-CAM monolithic-translucent zirconia or lithium disilicate crowns and first molar enamel against enamel on the opposite site of oral cavity."
sparser
"In the past few decades, technological advances have been incorporated in dentistry, particularly for the transfer of the spatial positions of the implants to a three-dimensional (3D) virtual model by utilizing computer-aided design and computer-aided manufacturing (CAD-CAM) technologies."
sparser
"Since then, 3D scanning of dental arches has been used in numerous restoration procedures to create digital impressions for the application of CAD-CAM technology. xref xref Currently, the most widely used scanners include CEREC Omnicam (Dentsply Sirona, Charlotte, NC, USA), Trios (3Shape, CPH, Denmark), and iTero (Align Technology Inc, Tempe, AZ, USA)."
sparser
"The introduction of CAD-CAM systems has increased the number of inlays used instead of direct restoration techniques and materials; however, further research is required to verify the advantages of these systems. xref xref Undoubtedly, marginal fit, as a result of marginal gap and overextension control, may lead to plaque accumulation, xref and this is one of the most important criteria in establishing the long-term functional success of a dental restoration. xref The main reason of restoration failure is the cement degradation, and the consequent microleakage may result in inflammation of the periodontal tissues and secondary caries in the interface. xref "
sparser
"There are multiple factors that explain this result. (e.g., materials and impression technique) The factors reported to affect the quality of impressions are: localization of the finish line; periodontal health; sulcus bleeding during the impression; salivary flow; patient collaboration, especially in the retromolar area (e.g., ascending mandibular ramus); mouth opening capacity of patients; and interposition of the tongue. xref xref xref Other factors influencing the fit of inlays obtained with CAD-CAM systems include: the ability and experience of the CAD-CAM system operator, the intrinsic limitations of the device, and the sculpted unit, software, and design algorithms used."
sparser
"This criterion was chosen because it was more feasible and realistic for the CAD-CAM system and clinical practice adopted by the authors, which was intentionally selected to help avoid seating issues during the bonding process, especially due to the hydrostatic pressure of the luting agent, which could prevent the full seating of the crown if the adaptation was excessively tight."
sparser
"The purpose of this in vitro study was to evaluate the cement space in computer-aided design and computer-aided manufacturing (CAD-CAM) crowns of different materials and correlate 2D measurements of cement space with their corresponding 3D values (volume of cement space) by using microcomputed tomography (μCT) analysis of regions of interest."
sparser
"Although there are no clinical reports on CAD-CAM fabricated PEEK FDPs available in the literature, Stawarczyk et al. in an in vitro study found that three-unit fixed dental prostheses milled using CAD-CAM technology from pre-pressed PEEK blanks showed lower deformation and higher fracture loads (2354 N) than those pressed in granular form (1738 N) [ xref ]."
sparser
"In addition, CAD-CAM technology can provide accuracy and time-saving process to fabricate ceramic restorations.[ xref ] To achieve a more esthetic outcome of the restorations, one of the critical factors is the translucency of the restorations.[ xref ] The translucency of the material allows the light to transmit through the object that mimics the natural appearance of the teeth; accordingly, ceramic materials have been developed and continuously researched for better clinical outcomes."
sparser
"An in vitro study of Benli et al. found lower loss of volume and change in roughness for PEEK occlusal splints after chewing simulation compared to other CAD-CAM materials such as vinyl acetate (EVA), polymethyl methacrylate (PMMA), polycarbonate (PC), and polyethyleneterephthalate (PETG) [ xref ]."
sparser
"Through computer-aided tomography–computer-aided design (CAT-CAD), tomographic acquisitions become faithful 3D CAD models of patients’ anatomy; through computer-aided design–computer-aided manufacturing (CAD-CAM), bony models are 3D printed in 1:1 scale and serve as a direct means of evaluation of bone injuries and deformities [ xref , xref , xref , xref , xref ]."
sparser
"The same spacer thickness was recommended by Souza et al .[ xref ] evaluated the marginal and internal discrepancies associated with the margin design of ceramic crowns manufactured using a CAD-CAM system and found that the consensus for an acceptable marginal fit difference was defined as a range of 50–150 μm."
sparser
"In particular, the present study will be focused on the effectiveness and advantages of integrating 3D digital technology, from virtual treatment plan to computer-aided design and computer-aided manufacturing (CAD-CAM) systems, in treating complex cases, such as malocclusion requiring orthognathic surgery."
sparser
"Ioannidis et al. [ xref ] compared the marginal and internal fit of 3D printed zirconia occlusal veneers with CAD-CAM fabricated zirconia or heat-pressed lithium disilicate ceramic (LS2) restorations on molars (ceramic powder 3 mol% yttria-stabilized zirconia polycrystal; CeraFab 7500, Lithoz GmbH)."
sparser
"The advancement in digital dentistry based on the technological development of computer-assisted design-computer-assisted manufacturing (CAD-CAM) has been accepted by dental practitioners in search of novel restorative materials, which are capable of providing superior aesthetics quality and durable restorations together with an excellent prognosis."
sparser
"Many innovative ceramic-comprised materials have been developed for fabrication of the restorations with the technology of CAD-CAM comprising hybrid ceramic, feldspar ceramic, leucite-reinforced ceramic, lithium disilicate glass ceramic, zirconium-reinforced lithium silicate ceramic, yttria partially stabilized tetragonal zirconia polycrystal (Y-TZP) ceramic, and monolithic zirconia [ xref ]."
sparser
"Clinical studies comparing compatible computer-aided design and computer-aided manufacturing (CAD-CAM) titanium abutments (CAs) and original prefabricated 1-piece titanium abutments (PAs) for posterior fixed dental prostheses (FDPs) on Straumann Tissue Level (STL) implants are sparse."
sparser
"Fifty-four plates obtained from Lava Ultimate (LU), Cerasmart (CS), and Vita Enamic (VE) CAD-CAM blocks were assigned to nine groups: N0: Nova Compo SF (NCSF), N1: Silane/Single Bond Universal (SBU)/NCSF, N2: SBU/NCSF, N3: Silane/G-Premio Bond (GPB)/NCSF, N4: GPB/NCSF, G1: Silane/SBU/G-aenial Universal Injectable Composite (GUIC), G2: SBU/GUIC, G3: Silane/GPB/GUIC, G4: GPB/GUIC."
sparser
"Software was developed to run on the wide range of resulting hardware platforms, profoundly impacting the design and manufacturing sectors through tools such as Computer Aided Design and Manufacture (CAD-CAM), Flexible Manufacturing Systems (FMS) and Advanced Digital Manufacturing (ADM)."
sparser
"The purpose of this in vitro study was to evaluate the effects of supporting conditions and the use of an anchor microscrew on the seating and functional stabilization of a computer-aided design and computer-aided manufacturing (CAD-CAM) implant surgical guide with a completely limiting design."
sparser
"The effect of an immune-boosting beverage (SAM) containing Sambucus Nigra, an energy beverage (ENE), an in-office bleaching (BLE) agent with 25% hydrogen peroxide superior, glazing (GLA) or polishing (POL) methods, and professional dental prophylaxis (PDP) on the color of CAD-CAM restorative materials is unknown."
sparser
"The purposes of this in vitro study were to apply information criteria of analysis of variance (ANOVA) methods of differing error distributions and covariance structures when analyzing color differences to determine the degree of alienation among 3 Commission Internationale de l'Eclairage (CIE) color difference formulae to assess the linearity of relationships among these formulae and to independently assess differences among various computer-aided design and computer-aided manufacture (CAD-CAM) materials in any color change after common forms of staining over time."
sparser
"Nowadays, zirconia, lithium disilicate glass-ceramic, and leucite-reinforced glass-ceramic are widely used dental ceramics for metal-free ceramic restorations, and they feature translucency and improved strength. xref With the development of digital technology, these ceramics are commercially manufactured for milling in CAD-CAM workflow as well as for conventional workflow."
sparser
"The purpose of this in vitro study was to investigate the effect of the translucency of CAD-CAM ceramic restorative materials (zirconia, lithium disilicate glass-ceramic, and leucite reinforced glass-ceramic) and scanning aid conditions (liquid-based and none) on the scan accuracy and time efficiency of an IOS."
sparser
"Based on the findings, the translucency of CAD-CAM ceramic restorative materials negatively affects the accuracy of IOS scan without a scanning aid; however, the scan accuracy and time efficiency of IOS scanning for anatomic contour ceramic restorations can be improved by applying scanning aid, and prostheses with high quality without unnecessary labor can be produced."
sparser
"With the development of digital and manufacturing technologies, intraoral digital scanning has been widely used to fabricate dental prostheses due to reduced time and better patient comfort than conventional impression taking. xref , xref , xref , xref For the quality of prostheses, a marginal discrepancy of restorations with computer-aided design and computer-aided manufacturing (CAD-CAM) workflow has been reported to be compatible with that of conventional workflow. xref , xref However, unlike conventional impression taking, digital scan uses light to acquire information and encounters difficulties associated with the optical phenomenon, such as subsurface scattering, surface characteristics, and ambient light conditions. xref , xref , xref "
sparser
"Given the critical role of TiBase adaptation in the success of implant prosthetics, this in vitro study aims to compare the internal and marginal fit of three different CAD-CAM milled materials for implant-supported single restorations: doped graphene PMMA, single-density zirconia, and dual-density zirconia, at the time of manufacturing."
| PMC
sparser
"With the explosion in data amount and availability and the technical means to effectively lever them, this trend towards digital dentistry is accelerating: Digital dentistry is nowadays much more than computer-aided design and manufacturing (CAD-CAM), it entails diagnostics, decision-making, treatment conduct and re-evaluation as well as lifelong management of patients’ oral health."
sparser
"So far, digital dentistry is essentially facing a schisma; industry-driven technological solutions (mainly in the CAD-CAM and imaging sector) are already reality, while AI-technologies focusing on diagnostics and treatment planning are rather concepts than robust applications at present."
sparser
"Medical doctors and doctors in the dental sciences have been pushed to modify their workflow using new instruments such as decisional software, intraoral and extraoral scanners, and CAD-CAM technologies, which have improved diagnostics and the clinical/surgical phase of treatment and follow-up, and nowadays it is clear that medical professional life will continue in the era of digital medicine."
sparser
"The methodological variations among studies such as differences in the number of measurements performed, the use of distinct materials, the sensitivity of CAD-CAM systems and software, dimensional stability of the impression material, and the measurement method used can all have an impact on the accuracy of restoration fittings [ xref , xref , xref , xref ]."
sparser
"To evaluate the overall adaptation and retention of class I cobalt-chromium (Co-Cr) removable partial denture (RPD) frameworks using three different computer-aided design and computer-aided manufactured (CAD-CAM) technologies: Indirect wax milling with lost wax technique (LWT), direct milling, and selective laser melting (SLM) technique."
sparser
"Recent advancements, including the development of various all-ceramic materials such as lithium disilicate, leucite-reinforced glass ceramic, alumina, and zirconia, alongside notable improvements in computer-aided design and computer-aided manufacturing (CAD-CAM) technology, have rendered it suitable for use in the posterior areas and for multiunit fixed dental prostheses (FDPs).[ xref ]"
sparser
"Chipping, a common mechanical complication affecting approximately 10%–15% of ceramic restorations, often arises due to the mismatch of CTE between the zirconia ceramic core and the veneered ceramic layer.[ xref ] Clinically, chipping is classified into three grades based on the type of repair required: Grade I (slight chipping treated by surface polishing), Grade II (moderate chipping treated with composite resin), and Grade III (severe chipping exposing the zirconia core that requires replacement of prosthesis).[ xref xref ] Zirconia restorations are typically fabricated using the CAD-CAM technique, employing either hard machining, which involves milling the fully sintered zirconia block, or soft machining, where presintered blocks are milled, typically trimmed 25% larger.[ xref ]"
sparser
"PSI is the upcoming horizon in the field of reconstruction that allows simultaneous dental and maxillofacial rehabilitation to achieve immediate aesthetic and functional aspects.[ xref xref ] With the advent of 3D printing and CAD-CAM technology, reconstruction of 3D facial forms to re-establish complex anatomical structures has become relatively simple.[ xref ] Additive manufacturing techniques have facilitated the reconstruction of devices that can be designed to exactly fulfil the reconstructive requirements as per the customised demand of a case.[ xref xref ] 3D printing technology can be used to overcome limitations associated with autologous bone grafts.[ xref xref ]"
sparser
"There is increasing interest in [KMg 3 (AlSi 3 O 10 )F 2 ] based glass-ceramics for dental crowns, onlays and inlays, particularly with the widespread usage of CAD–CAM within dental surgery. xref These applications using mica based glass-ceramics are directly dependent on their machinability which is strongly influenced by hardness of the GC. xref The following equation xref indicates the relationship between Hardness ( H ) and machinability parameter ( m ):"
sparser
"A titanium abutment (Variobase® abutment, Ø 4.5 mm, GH = 3 mm, AH = 5.5 mm, Straumann®, Switzerland) was selected and screwed into the analog, then CAD-CAM lab technology (Ceramill map400, Ceramill motion2; Amanngirrbach, Koblach, Austria) was utilized to fabricate an occlusally vented zirconia core that precisely fits the Variobase® abutment."
sparser
"CAD-CAM has revolutionized not just the fixed prosthdontics (e.g. all ceramic restoration) but has also been used for the CAD-CAM RPD, Complete denture, implant therapies, maxillofacial prosthesis, esthetic dentistry, virtual articulators and digital face bows, robot articulator, or in the field of training, education and research by the use of virtual patient programs, and others."
sparser
"Thirty PEEK copings were fabricated and divided into 3 groups (n=10) according to the fabrication technique: milled from a prefabricated PEEK blank by using a computer-aided design and computer-aided manufacturing (CAD-CAM) system (PC); pressed from prefabricated PEEK pellets (PP); and pressed from PEEK granules (PG); in addition, 3-mol yttria-stabilized tetragonal zirconia polycrystal (3Y-TZP) copings (n=10) were produced by using the same CAD-CAM system and served as a control."
sparser
"A total of 150 12×12-mm square specimens of 6 different CAD-CAM monochromatic materials (VITA Enamic HT [VE], IPS e.max CAD HT [LS], LAVA Ultimate HT [LU], Telio CAD HT [TE], VITA Suprinity HT [VS], and Celtra Duo HT [CD]) in shade A2 and 5 different thicknesses (from 0.5 mm to 2.5 mm, with 0.5-mm increments) were fabricated (n=5)."
sparser
"Currently, there is no alternative etchant that can match the effectiveness of HF for chemically etching CAD-CAM surfaces, thus presenting a significant challenge in dentistry and highlighting the need to balance efficient surface conditioning with the use of safer and less harmful substances."
sparser
"The desire to mimic the natural optical features in dental restorations led to the development of instrument‐based color measurement systems, such as spectrophotometers, colorimeters, intraoral digital scanners, and imaging systems. xref , xref , xref , xref , xref , xref After the introduction of computer‐aided design and computer‐aided manufacturing (CAD‐CAM) technologies, new‐generation intraoral scanners have built‐in shade and color parameter assessment functions. xref , xref , xref Although few studies suggested that the intraoral scanners may be an alternative for shade selection and more reliable than the visual method, some studies showed that shade measurements from the intraoral scanners are not comparable to the spectrophotometers. xref , xref , xref Nonetheless, color measurement with digital methods helps eliminate subjective variables such as environmental conditions and the assessor's experience of shade selection. xref However, the higher cost of equipment could limit its adoption in clinical practice. xref "
sparser
"Additive manufacturing, also known as 3D printing involves the addition of material layer‐by‐layer to fabricate 3D objects using CAD‐CAM technology. xref , xref , xref , xref Among different 3D printing technologies, material jetting can be used in the color reproduction of 3D‐printed objects. xref , xref , xref Material jetting (MJ) works on a principle similar to an inkjet printer, the difference is that instead of ink drops, material jetting uses light‐polymerizing polymer, wax, or silicone‐like rubber materials."
sparser
"The effect of the AF1/AHS3 etchant on the SBS between the etched CAD-CAM materials and the luting agent was comparable to that achieved with the commercial HF etchant, indicating that the AF1/AHS3 etchant effectively increases the surface roughness and area of the CAD-CAM materials, enhancing their potential for mechanical interlocking at the interface between the luting agent and CAD-CAM materials."
sparser
"The findings revealed that the acidic AF1/AHS3 etchant effectively increased the surface roughness of silica-containing CAD-CAM materials, such as lithium disilicate glass, feldspathic porcelain, polymer-infiltrated ceramic networks, and resin composites, thereby enhancing their bond strength with the luting agent."
sparser
"Although the flapless technique is proved to be more beneficial when combined with CAD-CAM technique, but due to its cost sensitivity and complexity, the other methods of placing flapless implants, i.e., guided surgery without 3D navigation and flapless technique without a surgical guide, should be considered but only by skilled clinicians with high clinical expertize."
sparser
"The purpose of this case series is to describe a new digital workflow for the All-on-4 concept. (2) Methods : The patients were rehabilitated using the All-on-4 concept with a digital workflow including computerized tomography scanning, intra-oral scanning, and CAD-CAM production of the temporary prosthesis, with the 3D printing of stackable guides (base guide, implant guide, and prosthetic guide)."
sparser
"These potential issues have deserved some attention from the scientific/clinical community with the improvement in the workflow by introducing stackable guides that allow the connection of surgical guides and an interim poly(methylmethacrylate) (PMMA)-fixed prosthesis following CAD-CAM digital design and 3D printing [ xref , xref , xref , xref , xref , xref ]."
sparser
"This clinical report presents combining a computer-aided design and computer-aided manufacturing (CAD-CAM) composite resin palatal wall with a direct composite resin layering technique for the esthetic and functional restoration of a large Class IV fracture of a maxillary central incisor to achieve optimal esthetic and functional outcomes."
sparser
"Ninety specimens were prepared from three different CAD-CAM materials (a leucite-based glass-ceramic [Empress CAD], a polymer-infiltrated ceramic network [Vita Enamic], and a zirconia-reinforced lithium silicate glass-ceramic [Vita Suprinity]) in different thicknesses (1, 2, and 3 mm)."
sparser
"Objectives : The objectives of this work are to show our experience, protocol and the applications of computer planning, virtual surgery, CAD-CAM design, surgical navigation, and computer-assisted navigated piezoelectric surgery in the treatment of facial intraosseous vascular anomalies and to evaluate the advantages and disadvantages."
sparser
"The main objective of this work is to show our experience, our protocol, and the applications of computer planning, virtual surgery, CAD-CAM design, surgical navigation and computer-assisted navigated piezoelectric surgery in the treatment of facial intraosseous vascular anomalies and to evaluate the advantages and disadvantages of this innovative surgical approach."
sparser
"Several authors have reported that the use of virtual surgery and CAD-CAM design of prostheses and customized surgical guides improves the accuracy of the reconstruction and its esthetic results, reduces complications of ablation and reconstruction, and decreases surgical time and postoperative hospital stay [ xref , xref , xref ]."
sparser
"The aim of this study was to evaluate the push-out bond strength and the failure mode of single adjustable posts (SPLENDOR SAP), anatomical posts (AP), or computer-aided design/computer-aided manufacturing (CAD-CAM) posts cemented to flared root canal dentin with self-adhesive dual-cure resin cement."
sparser
"Four types of CAD-CAM hybrid block materials—Lava Ultimate (LA), Vita Enamic (VE), CeraSmart (CS), and Shofu Block HC (SH)—were used in this study, in combination with the following four adhesive protocols: 1) control: porcelain primer + total etch adhesive (CO), 2) Single Bond Universal (SB), 3) All Bond Universal (AB), and 4) Clearfil Universal Bond (CU)."
sparser
"The tooth specimens were divided equally into three groups (n=10), according to the glass fiber post (GFP) system: AP-prefabricated GFP (Reforpost #2, Angelus) was relined with composite resin (Filtek Z350 XT, 3M ESPE); SPLENDOR SAP-GFP was used with a glass fiber sleeve to adjust the adaptation (Splendor SAP, Angelus); and CAD-CAM-a resin pattern was obtained and scanned to produce a CAD-CAM GFP (Fiber CAD Lab, Angelus) milled using a subtractive technique."
sparser
"Even without the use of an intraoral scanner, post-and-cores can be obtained by using a part-digital fabrication workflow that requires pattern modeling (direct, indirect, or impression); however, studies on the adaptation of computer-aided design and computer-aided manufacturing (CAD-CAM) composite resin post-and-cores in comparison with metal cast post-and-cores are sparse."
sparser
"Metal post-and-cores had slightly better adaptation than the CAD-CAM composite resin post-and-cores; however, the part-digital fabrication workflow of CAD-CAM composite resin post-and-cores provided adaptation parameters within a clinically acceptable range and is less time consuming."
sparser
"Patient-customized OGS using customized fixation plate after the virtual simulation is a more effective strategy than using CAD-CAM splints alone [ xref ]; however, some errors in the diagnosis and treatment planning may occur due to limitations in manipulating 3D data on a 2D screen [ xref ]."
sparser
"Adequate maintenance of the midline, occlusion, and mandibular dynamics was all achieved through digital processing of TC cone beam, following the acquisition of 3D images to define the resection lines with safety margins and a CAD-CAM procedure to obtain the cutting guides and a prosthesis with the correct dimensions."
sparser
"The use of CAD-CAM technology for the fabrication of custom-made surgical guides and titanium prostheses from CT scans represents an alternative in some cases, especially in the areas of craniomaxillofacial trauma, orthognathic surgery, and reconstructive maxillofacial surgery after resection for neoplasms, which are not a candidate to postoperative radiotherapy."
sparser
"These results are remarkable since it was reported that zirconia under wear can show up to 40% vol of m-zirconia [ xref ], so the absence of this phase in the CAD-CAM prepared cores can be considered a good starting point to support a long-lasting durability of zirconia dental prostheses."
sparser
"The study’s results showed that the surface quality of the emergence profile for customized dental implant abutments milled by a CAD-CAM machine is different from original dental implant abutments and compatible dental implant abutments that were industrially machined, according to the machine’s setting parameters (Stepover and Feed Rate), thus the null hypothesis was rejected."
sparser
"The mechanical properties [ xref ], trueness and tissue surface adaptation [ xref , xref ], retentive quality [ xref ], biocompatibility and microbial colonization [ xref ], clinical outcomes and patient satisfaction [ xref , xref ], and clinical complications and quality assessments [ xref , xref ], of CAD-CAM complete dentures compared to conventional dentures were assessed."
sparser
"The significant increase in the maximum biting force while subjects wearing the CAD-CAM overdentures compared to conventional overdentures may be attributed to improvement in denture adaptation that in turn resulted in more patient comfort and more ability to bite without discomfort that was accompanied with the conventional denture [ xref ]."
sparser
"Accuracy of the impression depends on the skill of the dentist, the types of materials used, and the selection of trays, and there are many possibilities for errors to occur in any one of these steps.[ xref ] The trueness and accuracy of the master cast also depend on numerous factors that could be subjected to errors, such as water powder ratio, type of material, mixing time, and preservation of details.[ xref ] The use of computer aided designing – computer aided milling (CAD-CAM) in the field of prosthodontics brought accuracy and success to the treatment procedure in the early 1980s, and this paved the way for further advancements.[ xref ] Intraoral scanners (IOSs) are a user-friendly procedure in which the oral cavity is scanned instead of conventional impression-making."
sparser
"The significant increase in the biting force for conventional fabricated dentures and CAD-CAM fabricated dentures with time from three to six months may be owing to the progressive experience establishment in addition to increased denture base adaptation by time as confirmed by many earlier studies [ xref , xref ]."
sparser
"Within the limitations of the current study, it can be stated that restoring the edentulous mandible with CAD-CAM constructed implant-assisted overdentures increases tissue surface adaption and maximal biting force when compared to conventionally fabricated acrylic resin overdentures."
sparser
"This preferential disintegration of the vitreous phases of ceramic materials creates a micromechanically retentive environment, regardless of the tested material, amplifying the contact surface between ceramic and adhesive, although there is a correlation between the failure mode and the CAD-CAM material type."
sparser
"However, surgical CAD‐CAM templates, covering the entire surgical field and limiting the visibility of soft tissue and bone anatomy during the bone drilling, do not allow to detect any deviations in the drilling trajectory or implant mispositioning unless the template is removed from the patient mouth."
sparser
"More recently, some authors have proposed the execution of custom‐made meshes, using CAD‐CAM technology, in order to have the device planned and produced before the surgery, with rounded corner and margins, accurate fitting, and adaption in situ, consequently, having intrinsic stability (Sumida T. et al. xref ; Sagheb et al., xref ; Seiler et al., xref ; Ciocca L. et al., xref ; Hartmann A. et al. xref ; Cucchi A. et al. xref ; Chiapasco et al., xref )."
sparser
"Polymethylmethacrylate (PMMA) is one of the most often used provisional restorative materials. xref PMMA has several advantages over other provisional restorations, including excellent polishing capabilities, low cost, high coefficient of thermal expansion, and lightweight. xref However, this material’s limitations include poor color stability, unpleasant odor, excessive polymerization shrinkage, low durability, porosity, and high surface roughness. xref The development of CAD-CAM (Computer-Aided Design and Computer-Aided Manufacturing) provisional restorations was introduced to dentistry as a solution to these issues. xref "
sparser
"According to the fabrication process, CAD-CAM technology can be classified as Additive Manufacturing (AM) or Subtractive Manufacturing (SM). xref , xref When a long-term provisional is needed, CAD-CAM provisional materials are preferred because they have various advantages such as color stability, ease of production, accuracy, less material waste, and superior strength. xref The immediate and long-term effects of 3D-printed provisional restorations are directly impacted by the manipulation and post-curing process information that many manufacturers choose not to adequately provide to clinicians. xref "
sparser
"This could be because of topographical irregularities, which trigger more colorant and plaque than polished surface. xref All CAD-CAM specimens, either polished/unpolished, had “extremely slight change” to “perceivable change” after immersion in saliva and citric acid, while immersion of the conventional group in the exact solutions resulted in a “marked color change”."
sparser
"For instance, controlling homogeneity, porosity, and stress release during the finishing and polishing of conventional materials can be difficult. xref Similarly, sample preparation for CAD-CAM restorations is influenced by factors like printing technology, build orientation, layer thickness, and post-curing time. xref Future research in vivo could explore the performance of these materials under more realistic clinical conditions."
sparser
"Direct data capture, which is logical direct access to dental CAD-CAM, may be able to bypass these crucial phases.[ xref ] Precise impressions are a necessary precondition for accurate dental restorations, and intraoral digital data collection looks like a sensible first step to avoid any mistakes from the start of the digital workflow."
sparser
"To evaluate the load-bearing capacity under fatigue (fatigue failure load [FFL], the number of cycles for failure [CFF], and survival probabilities) and fracture pattern of weakened and non-weakened roots restored with CAD-CAM fiber post and cores, metal cast-post-core, and prefabricated fiber post and resin core."
sparser
"After that, the endodontic treatment was executed, all roots embedded with acrylic resin and the specimens randomly allocated (n=10) considering the factor "post system" in three levels (CAD-CAM: CAD-CAM milled glass-fiber post and core; MBC: metallic-based post and core; and FRC: prefabricated glass-fiber post and composite resin core)."
sparser
"CAD-CAM fiber post (FFL: 865 N; CFF: 311,000 cycles) presented similar fatigue performance (p>0.05) to FRC (FFL: 925 N; CFF: 335,000 cycles), with 100% of repairable fractures for non-weakened roots; however, both groups presented worse performance than MBC (p<0.05; FFL: 1265 N; CFF: 471,000 cycles) which led to 100% of catastrophic failures."
sparser
"The objective of this in vitro investigation was to assess and contrast the color stability and dimensional accuracy of denture base resins that were 3D printed and CAD-CAM milled, both before and after aging by thermocycling using digital surface matching technology and a benchtop laser scanner without using a spray, to optimize adaptation of the denture base and cast to minimize any imperfections and to evaluate the impact of the denture cleansing solution on the stability of color."
sparser
"CAD-CAM milled resins had the highest dimensional accuracy and the best color stability, conventional heat polymerized acrylic resins showed moderate change in dimensional accuracy and color stability, while the 3D- printed resin had the lowest dimensional accuracy and color stability after aging by thermocycling."
sparser
"The null hypothesis is that no difference in the dimensional accuracy and color stability exists between the conventional heat-polymerized PMMA, CAD-CAM milled and 3D-printed denture base resins prior to and following thermocycling or immersion in denture cleanser solution for color stability."
sparser
"The CAD-CAM milled technique demonstrated the highest dimensional accuracy and optimal distribution of adaption in the color map, while the 3D-printed group showed the lowest dimensional accuracy and least uniform distribution of adaptation in the color map and the conventional heat polymerized PMMA lies in between them both."
sparser
"The CAD-CAM milled group showed the lowest change in color and, therefore, the highest color stability (△E 00 = 0.911 ± 0.075), followed by conventional heat-polymerized group (△E 00 = 1.366 ± 0.110), while the 3D-printed group showed the greatest color change (△E 00 = 1.957 ± 0.129), with a significant difference between the 3 groups ( P < ."
sparser
"The CAD-CAM milled group showed the lowest color change (△E 00 = 2.012 ± 0.353), followed by the conventional heat polymerized group (△E 00 = 2.991 ± 0.244), then the 3D-printed group showed the greatest color change (△E 00 = 3.185 ± 0.389), with a significant difference between the milled group compared to heat polymerized and the 3D-printed group ( P < ."
sparser
"The realization of customized 3D meshes with CAD-CAM techniques after a careful virtual planned design can favor the treatment of very large defects and also reduce surgical times because the customized grid immediately and perfectly adapts to the site to be rebuilt without the necessity of intra-operative modeling [ xref , xref ]."
sparser
"Within the limits of this study, the results showed that this new technique of personalized bone regeneration (CBR) with the use of custom 3D titanium meshes manufactured with CAD-CAM technology represents a safe, encouraging and predictable alternative for the regeneration of various bone defects."
sparser
"The purpose of this in vitro study was to compare marginal fit after the fabrication of cobalt-chromium alloy copings, porcelain firing, and cementation of metal-ceramic restorations that were fabricated with computer-aided design and computer-aided manufacturing (CAD-CAM) milling and direct metal laser sintering techniques."
sparser
"Therefore, the reduction of the respiratory risk in dental laboratories should also favor the choice of less toxic materials, the use of dust extraction and room ventilation systems and Computer Aided Design—Computer Aided Manufacturing (CAD-CAM) technologies for the fabrication of prostheses [ xref , xref ]."
sparser
"The composites and amalgam, both when used as crown foundation material and luted with use of technically advanced CAD-CAM metal crown with self-adhesive resin cement (in both ideal or contaminated condition), showed less microleakage than in resin-reinforced glass ionomer cement."
sparser
"In the present study, for the first time we compared the commonly used crown foundation materials and luting agents, especially with CAD-CAM metal crown, as the use of digital dentistry is increasing day by day and it should be assessed thoroughly to obtain a better understanding."
sparser
"In the present study, composites and amalgam both showed less microleakage, when used as crown foundation material with self-adhesive resin cement (in both ideal-RGr-1,3 or contaminated-RGr-2,4) than in resin reinforced glass ionomer cement in tooth samples luted with CAD-CAM metal crown."
sparser
"CT and MRI with high resolution and contrast usually work collaboratively with computer-aided design and computer-aided manufacturing (CAD-CAM) toolbox and mathematical modeling to collect the tomographic and architectural information on 3D cellular, tissue, organ, and organism structure and function."
sparser
"With the advent of contemporary data acquisition and imaging technologies, these advanced surgical procedures can be planned completely digitally [ xref , xref ], and complete arch prostheses can be fabricated from start to finish using modern computer-aided design and computer-aided manufacturing (CAD-CAM) workflows [ xref , xref ]."
sparser
"Compared with conventional heat-polymerized denture processing, CAD-CAM dentures offer advantages, including efficient data storage, simplified teeth arrangement, the capability for precise duplication and reproduction, and the elimination of complications associated with conventional heat-polymerization techniques xref – xref ."
sparser
"Nevertheless, recent evidence points out that conventional manufacturing techniques could still be considered as effective and reliable for the fabrication of precise prostheses as CAD-CAM technologies [ xref ], delivering marginal discrepancies bellow 120 μm, which is a clinically acceptable threshold."
sparser
"The aim of the present in vitro study was to evaluate the effect of simulated annual at-home bleaching (consisting of daily applications for 10 hours a day for 14 days), for up to 3 years, on susceptibility to staining (ΔE00), translucency (ΔTP00), and whiteness (ΔWID) variations and on topography of CAD-CAM monolithic materials."
sparser
"In the case of restorations with implant support, a recent study conducted in Germany showed that most dentists preferred the use of ceramic materials in the case of crowns with implant support, metal or resin materials being mentioned by only a few respondents, even if modern CAD-CAM processing technologies were used [ xref ]."
sparser
"Fabrication of single implant crowns (SICs) and fixed dental prostheses from data obtained by IOSs has proven to be a reliable option. xref xref However, several factors can affect the accuracy of intraoral scanning of implants regarding surface data and implant position, xref xref xref and determine, alongside with computer-aided design/computer-aided manufacturing (CAD-CAM) software characteristics, xref the maximum achievable degree of exactness of the latter restoration on part of the underlying data."
sparser
"The testing model was laser sintered from Co-Cr alloy, which has proven to be the most appropriate material for testing models in CAD-CAM studies, to ensure reliable testing. xref Specimen preparation was conducted strictly in accordance with manufacturers' specifications, complying with the clinical workflow, whenever applicable."
sparser
"Also, it suggests further research to improve the adhesion milling Lava™ Ultimate by the action of the diamond burs because this process increased the roughness of all CAD-CAM ceramic and composite resin blocks [ xref ], therefore, better performance of this interface could be expected in a real clinical situation."
sparser
"To prepare the teeth, the CAD-CAM technology has been used since it provides standard preparation of all teeth for in vitro tests and provides a reproducible tool that can be used in experiments to facilitate comparisons and minimize bias arising from differences in the processing of samples [ xref ]."
| PMC
sparser
"Therefore, the present narrative review aimed at evaluating and comparing CAD-CAM complete dentures (CDs) with conventionally fabricated CDs in terms of true compatibility, mechanical properties, surface characteristics, color stability, time-cost analysis, and clinical outcomes."
sparser
"However, the need for more available information on comparing the surface characteristics of CAD-CAM leucite-reinforced ceramics after polishing with different polishing kits hinders the ability of clinicians to offer restorative materials that could benefit their patients confidently."
sparser
"Additionally, evaluating other chairside CAD-CAM leucite ceramic brands using the same methods and comparing them under standardized experimental conditions (e.g., rotary instrument speed, water supply, abrasion time, and abrasion pressure) and following the manufacturers’ recommendations would provide valuable insights."
sparser
"The purpose of this study was to characterize the homogeneity of the mechanical properties of commercial CAD-CAM composites between different blocks of the same material (interblock homogeneity) and within each block between the internal and external parts (intrablock homogeneity)."
sparser
"As a result, it preserves natural tooth structure and ultimately decreases the incidence of loss of vitality complications in young patients. xref xref xref An additional advantage of monolithic LDGC CAD-CAM crowns is the absence of veneering porcelain, which in turn minimizes the risk of chipping which may occur with a bi-layered arrangement. xref Furthermore, marginal adaptation of IPS e.max CAD was found to be significantly better than that of metal-ceramic (MC) crown (27 µm vs. 57 µm). xref Clinical studies involving an observation period of 2 to10 years, evaluated the clinical performance of LDGC CAD-CAM crowns and demonstrated high survival rates between 83.5% and 100%. xref xref xref xref xref xref "
sparser
"Several clinical studies and systematic reviews have been conducted to assess the clinical performance of all-ceramic and MC crowns, but none have statistically compared the clinical performance of LDGC CAD-CAM versus MC crowns. xref xref xref xref xref Therefore, the aims of this retrospective study were to assess the clinical performance of posterior LDGC CAD-CAM and MC crowns and to evaluate the effects of patient’s gender, age, oral hygiene condition, location of tooth in the mouth, pulp condition (vital vs. endodontically-treated), type of cement used, nature of opposing dentition, and type of provider on their clinical performance."
sparser
"This study evaluated the reliability of the chair-side CAD-CAM surgical guide (CSG) in the anterior maxilla by comparing its accuracy with the laboratory 3D-printed surgical guide (3DSG) and manual surgical guide (MSG) concerning different levels of dentists' surgical experience."
sparser
"In recent years, computer-assisted surgical guides have advanced alongside the development of technology, such as cone beam computed tomography (CBCT), and computer-aided design and computer-aided manufacturing (CAD-CAM) systems. xref xref In the CAD-CAM surgical guide system, the most appropriate implant position, considering prosthetic and anatomical factors, can be virtually planned in implant planning software, and the CAD-CAM surgical guide is fabricated using additive 3D printing or subtractive milling methods to transfer predetermined virtual implant positions to the surgical site. xref xref xref xref These CAD-CAM surgical guides can provide precise implant positioning and reduce the need for extensive experience. xref xref "
sparser
"Findings of the present study are in agreement with those of two previous studies that lasted 24 and 42-months and reported a 100% survival rate of LDGC CAD-CAM crowns. xref xref For MC crowns, a survival rate of 90.8%, which is similar to what was found in the present study, was reported by Reitemeier et al. xref However, it is lower than a 5-year survival rate of 95.7% reported by Sailer et al. xref in a systematic review."
sparser
"The “Pre-Guide” serves multiple functions, such as recording the edentulous and surrounding areas, acting as a radiographic stent during CBCT imaging, and ultimately transforming into a static CAD-CAM surgical guide after planning the implant position using VARO Plan software (NeoBiotech, Seoul, Korea) and milling it with a VARO milling machine (NeoBiotech, Seoul, Korea)."
sparser
"This also differed from previous studies on chairside LDGC CAD-CAM crowns, where the reported loss of vitality was the most frequent biological complication occurring in the first two years with rates ranging from 4.9% to 6.7%. xref xref xref These results are in line with previous studies confirming that CAD-CAM crown preparations are more conservative and, as a result, may cause less pulpal trauma. xref xref In the present study, the LDGC CAD-CAM group performed biologically better than the MC group with no recurrent caries."
sparser
"To the best of our knowledge, studies are still scarce that demonstrate how the accuracy and experience demands of this chair-side CAD-CAM surgical guide compare to those of other CAD-CAM surgical guides. xref Therefore, this study aimed to evaluate the reliability of the CAD-CAM CSG by comparing the accuracy of the CSG with a laboratory 3D-printed surgical guide (3DSG) and a manual surgical guide (MSG) in the maxillary anterior esthetic region concerning the different levels of dental implant surgical experience of dentists."
sparser
"It has been reported that the average marginal discrepancies of CAD-CAM restorations range from 35 to 71 microns, which is well within the acceptable marginal gap of less than 120 microns. xref xref xref Minimal marginal gap will reduce the incidence of recurrent caries and marginal discoloration of all crowns."
sparser
"In contrast, esthetic properties of LDGC crowns remained excellent and patients were very satisfied with the esthetic appearance as described in this study and other reports. xref xref No marginal discoloration was observed in this study for either cements (RelyX Unicem and Calibra Esthetic resin cements) when used with LDGC CAD-CAM crowns."
sparser
"The 3DSG revealed mean angular deviations of 3.02 ± 0.41° and 1.47 ± 0.33° for the inexperienced dentist and experienced dentist, respectively, while the CAD-CAM CSG showed mean angular deviations of 7.78 ± 3.13° and 3.5 ± 1.19° for the inexperienced and experienced dentists, respectively."
sparser
"No porcelain chipping was observed in either group in spite of the fact that reports in the literature indicated that porcelain chipping was the most frequent technical complication for MC crowns with a rate of 1.8 to 3%. xref xref xref In contrast, monolithic LDGC CAD-CAM crowns were not associated with porcelain chipping potentially due to the absence of veneering porcelain. xref xref xref Overall, findings in the present study suggests that monolithic LDGC CAD-CAM crowns are strong and reliable even when they are provided by novice predoctoral students."
sparser
"Based on the findings of this retrospective clinical study, LDGC CAD-CAM crowns performed better than MC crowns over a period of 6 years with higher survival rates (96.0% for LDGC CAD-CAM vs. 90.8% for MC crowns) and success rates (96.0% for LDGC CAD-CAM vs. 83.4% for MC crowns)."
sparser
"Recently, dental ceramic restoration has become popular and plays an important role in the contemporary practice of restorative dentistry as a result of modern technology of computer-assisted design and computer-assisted manufacturing (CAD-CAM), instruments, materials, and treatment techniques that are capable of providing a natural esthetic restoration within an appropriated period of treatment. xref Restorative dentistry materials must possess proper mechanical and aesthetic properties and be resistant to fracture."
sparser
"Nowadays, metallic materials are processed by computer-aided design and computer-aided manufacturing (CAD–CAM) ( xref ) that allows 3D structures to be produced based on data (appropriate conversed–segmented) regarding individual organs, bones or blood vessels obtained from medical imaging devices such as magnetic resonance imaging (MRI), computed tomography (CT), cone beam tomography (CBCT) or ultrasound (USG)."
sparser
"The placement of E-glass fibers under a CAD-CAM resin composite may therefore represent an interesting strategy to reduce the risk of catastrophic restoration failure, which could be integrated in the development of the new generation of indirect materials, possibly in 3D-printing approaches."