International Journal of Computerized Dentistry最新文献

Positioning accuracy and post-treatment changes in the mandibular arch after insertion of a CAD/CAM titanium retainer.

IF 1.8 4区医学

International Journal of Computerized Dentistry Pub Date : 2025-01-28 DOI: 10.3290/j.ijcd.b5951470

Carmen Ulrike Schmid-Herrmann, Talisa Schwieder, Baerbel Kahl-Nieke, Till Koehne

{"title":"Positioning accuracy and post-treatment changes in the mandibular arch after insertion of a CAD/CAM titanium retainer.","authors":"Carmen Ulrike Schmid-Herrmann, Talisa Schwieder, Baerbel Kahl-Nieke, Till Koehne","doi":"10.3290/j.ijcd.b5951470","DOIUrl":"https://doi.org/10.3290/j.ijcd.b5951470","url":null,"abstract":"Aim: Fixed retention is the method of choice for permanent stabilization of the treatment outcome. In recent years, CAD/CAM techniques have been developed to produce retainers with high precision and tension-free fit. The aim of this retrospective study was to evaluate the suitability of a semi-industrial retainer manufacturing process (office-based construction, external laboratory manufacturing) in terms of positioning accuracy and post-treatment changes.Materials and methods: The accuracy of 41 retainers that were digitally designed and produced from a titanium plate by water jet cutting was analyzed. The patient received the retainer through fixation with dental flosses, without using a transfer tray. We compared the position in the mouth after insertion with the virtual setup using 3D software for superimposition. Intraoral scans of 25 CAD/CAM retainers and 25 0.0175" hand-bent retainers were evaluated after one year of usage. We measured the width between the canines, the angle between the lateral incisors, and the angle of contact between the canines and the lateral incisors.Results: The largest and significant positioning deviations occurred in the vertical position, whereas positional changes in the horizontal and sagittal were small. The CAD/CAM retainers and the hand-bent retainers showed similar and minimal post-treatment alterations, which were not statistically significant.Conclusion: Semi-industrial CAD/CAM titanium retainers offer good positioning accuracy in the mandible even without a transfer tray. Increased deviations between planned and actual position only occur in the vertical plane. In addition, these retainers offer good retention properties with minimal posttreatment changes, making them suitable for permanent retention.","PeriodicalId":48666,"journal":{"name":"International Journal of Computerized Dentistry","volume":"0 0","pages":"0"},"PeriodicalIF":1.8,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143053970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

OccluSense: Reliability, influencing factors and limitations.

IF 1.8 4区医学

International Journal of Computerized Dentistry Pub Date : 2025-01-28 DOI: 10.3290/j.ijcd.b5951419

Plamena Schütze, Florian Beuer, Axel Bumann

{"title":"OccluSense: Reliability, influencing factors and limitations.","authors":"Plamena Schütze, Florian Beuer, Axel Bumann","doi":"10.3290/j.ijcd.b5951419","DOIUrl":"https://doi.org/10.3290/j.ijcd.b5951419","url":null,"abstract":"Aim: This study aimed to evaluate OccluSense's reliability against conventional articulating films in assessing static occlusion. The study also targets to identify possible limitations and influencing factors when using this device to asses static occlusion.Materials and methods: This experimental research utilized twenty epoxy resin typodont models representing various occlusal discrepancies. They were mounted in a CP Artex articulator, and static occlusion was assessed in maximum intercuspal position using shimstock foil as a gold standard. The digitally generated occlusograms by OccluSense were compared with conventional occlusal indicators, including 40 μm articulating paper (AP) and 12μm articulating foil (AF). Intrarater Reliability was assessed using Cohen's kappa coefficient (κ).Result: AP and AF showed high reliability, with κ values of 0.94 and 0.93 respectively, indicating almost perfect agreement with the gold standard. In contrast, OccluSense demonstrated an overall reliability of κ = 0.22, signifying fair agreement. Notably, significant discrepancies in κ values were observed among different malocclusions, with deep bite exhibiting the lowest reliability at κ = 0.02, representing poor agreement (P<0.05).Conclusion: OccluSense is less reliable compared to traditional methods, such as articulating paper, for assessing static occlusion. Its limitations are particularly evident in patients with deep bite, making it unsuitable as a standalone tool at the present time.","PeriodicalId":48666,"journal":{"name":"International Journal of Computerized Dentistry","volume":"0 0","pages":"0"},"PeriodicalIF":1.8,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143053967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of the abutment shape on soft tissue healing. A randomized clinical pilot study involving a digital superposition methodology.

IF 1.8 4区医学

International Journal of Computerized Dentistry Pub Date : 2025-01-28 DOI: 10.3290/j.ijcd.b5951413

Safwan Amer, Serge Szmukler-Moncler, Ariel Savion, Thilo Damaskos, Rasmus Sperber, Florian Beuer

{"title":"Effect of the abutment shape on soft tissue healing. A randomized clinical pilot study involving a digital superposition methodology.","authors":"Safwan Amer, Serge Szmukler-Moncler, Ariel Savion, Thilo Damaskos, Rasmus Sperber, Florian Beuer","doi":"10.3290/j.ijcd.b5951413","DOIUrl":"https://doi.org/10.3290/j.ijcd.b5951413","url":null,"abstract":"Aim: To compare the effect of the shape of the healing abutment, concave or straight, on the dimensions of the soft tissue after healing.Materials and methods: Patients needing implant therapy in the posterior area were treated with a 1-stage surgery protocol; concave (CONC) or straight (STR) healing abutments were randomly assigned after implant installation. Before surgery, a CBCT and an intra-oral scan were obtained (IOS#0); IOS#1 was taken after soft tissue healing. The CBCT, IOSs and STL of the abutments were merged; this allowed measuring the gained/lost gingival height (ΔH), the gingival width (GWAbut) and the emergence angles (ANG) of each group.Results: Twenty-seven implants (Ø 4.2 mm, SEVEN (MIS)) with 14 CONC and 13 STR healing abutments were available for analysis. ΔH of both groups did not differ statistically. The marginal gingiva of CONC either stayed within the abutment concavity (CONCin) or reached its straight portion beyond the concavity (CONCup). When GWAbut and ANG were measured without considering this feature, the differences between STR and CONC were not statistically significant. In contrast, once this feature was considered, the difference between the groups became statistically significant. For GWAbut, results were CONCup>STR>CONCin; for ANG it was STR≈CONCup>CONCin.Conclusion: Abutment shape did not affect the gingival height. Thickness of the gingiva at the concave abutment depended upon the position of the marginal gingiva, within or beyond the concavity. This exploratory pilot study might suggest that concave abutment height should be carefully chosen to ensure that the marginal gingiva reaches the level beyond the concavity.","PeriodicalId":48666,"journal":{"name":"International Journal of Computerized Dentistry","volume":"0 0","pages":"0"},"PeriodicalIF":1.8,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143053965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Accuracy of complete-arch, All-on-4 implant scans under simulated intraoral variables.

IF 1.8 4区医学

International Journal of Computerized Dentistry Pub Date : 2025-01-28 DOI: 10.3290/j.ijcd.b5886413

Nazmiye Sen, Deniz Ozturk, Deger Ongul, Ibrahim B Sermet

{"title":"Accuracy of complete-arch, All-on-4 implant scans under simulated intraoral variables.","authors":"Nazmiye Sen, Deniz Ozturk, Deger Ongul, Ibrahim B Sermet","doi":"10.3290/j.ijcd.b5886413","DOIUrl":"https://doi.org/10.3290/j.ijcd.b5886413","url":null,"abstract":"Purpose: The purpose of the study was to investigate the accuracy of complete-arch intraoral scans for all-on-4 implant treatment under simulated intraoral variables.Materials and methods: A maxillary model designed to receive 4 implants in the regions of first molars and canines was used. Intraoral digital scans were completed in a simulation device by simulating two2 different clinical conditions: normal intraoral variables (NIV) and limited intraoral variables (LIV). Digital scans were obtained using five 5 different IOSs: Trios 3 (TRI), Primescan (PR), iTero 2 (ITE), Medit i500 (MDT), and Aadva IOS 100P (AAD). Ten scans of each IOS were made and exported as STL files. Assessment of precision and trueness was conducted with Geomagic 3D analysis software. Each STL file was individually aligned with the reference scan and 3D differences were calculated using the root mean square (RMS) value. Data was statistically analyzed using 2-way ANOVA and Tukey HSD tests (α=.05).Results: Regarding trueness, 2-way ANOVA and Tukey comparison tests revealed significant differences between different IOSs and intraoral variables. The AAD under LIV presented significantly higher RMS than TRI, PR, ITE, and MDT (p<.001). Regarding precision, the lowest mean RMS was obtained in the IOS group of PR under NIV. AAD presented significantly higher mean RMS in the groups of both NIV and LIV (p<.001). Limited intraoral variables significantly increased the RMS values for all IOSs tested (TRI, PR, ITE, MDT, and AAD).Clinical significance: Accuracy of complete arch all-on-4 implant scans were affected by different IOSs and intraoral variables. Simulating intraoral variables while testing IOSs might help to better validate their clinical use.","PeriodicalId":48666,"journal":{"name":"International Journal of Computerized Dentistry","volume":"0 0","pages":"0"},"PeriodicalIF":1.8,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143053963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Intraoral scanning accuracy and trueness for different dental restorations.

IF 1.8 4区医学

International Journal of Computerized Dentistry Pub Date : 2025-01-28 DOI: 10.3290/j.ijcd.b5886382

Richard Mosch, Vasilios Alevizakos, Dragan A Stroebele, Constantin von See

{"title":"Intraoral scanning accuracy and trueness for different dental restorations.","authors":"Richard Mosch, Vasilios Alevizakos, Dragan A Stroebele, Constantin von See","doi":"10.3290/j.ijcd.b5886382","DOIUrl":"https://doi.org/10.3290/j.ijcd.b5886382","url":null,"abstract":"Purpose: This in vitro study investigates the accuracy of digital impressions taken with different dental materials. It compares the scan accuracy and trueness of a handheld scanner operated by an experienced clinician, a handheld scanner operated by a robotic arm, and a tabletop scanner. By measuring the number of triangles, average degree, and vertices within the three groups, conclusions about the accuracy of different scanning methods on digital models can be drawn.Materials and methods: Standard-sized models made from various dental materials were used. The scanners tested included a tabletop scanner, a handheld scanner operated by an experienced clinician, and a handheld scanner operated by a robotic arm. The number of triangles, average degree, and number of vertices were recorded and compared. Statistical analysis was performed to identify significant differences between the groups.Results: The tabletop scanner produced the fewest triangles in the digital model, while the handheld scanner operated by the experienced clinician had the most. Significant differences were found in the number of triangles, average degree, and vertices among different dental restorations. The handheld scanner used by the experienced clinician produced the most accurate and true digital model, followed by the robotic arm-operated handheld scanner, and then the tabletop scanner. The use of different dental materials significantly affected the accuracy of digital impressions.Conclusion: This study highlights the accuracy and trueness of digital impressions using various dental materials and scanners. The findings suggest that the operator's experience and scanner type impact digital impression accuracy. These insights have implications for clinical practice, indicating the need for further studies to confirm these results and explore other influencing factors in dental digital impressions.","PeriodicalId":48666,"journal":{"name":"International Journal of Computerized Dentistry","volume":"0 0","pages":"0"},"PeriodicalIF":1.8,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143053966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Accuracy of intraoral scanners in neonates cleft anatomy.

IF 1.8 4区医学

International Journal of Computerized Dentistry Pub Date : 2025-01-28 DOI: 10.3290/j.ijcd.b5886430

Raphael Ferrari, Mutlu Özcan, Daniel Wiedemeier, Harald Essig

{"title":"Accuracy of intraoral scanners in neonates cleft anatomy.","authors":"Raphael Ferrari, Mutlu Özcan, Daniel Wiedemeier, Harald Essig","doi":"10.3290/j.ijcd.b5886430","DOIUrl":"https://doi.org/10.3290/j.ijcd.b5886430","url":null,"abstract":"Aim: This study investigated the accuracy of intraoral scanner (IOS) based on different image acquisition technologies in the field of presurgical-orthopedictreatment (PSOT) in neonates with cleft.Methods: Dental cast models of clinical situations representing unilateral cleft-lip-palate(UCLP), bilateral cleft-lippalate( BCLP) and cleft-palate(CP) with reference PEEK-scanbodies (Cares RC Mono-Scankörper, Straumann, Switzerland) were scanned utilizing four IOS systems: CareStream-CS3600®(CS), Medit-i500®(MD), Cerec-Omnicam®(SO), 3Shape-Trios-3®(TS). One calibrated operator made 5 scans from each model using each IOS (N=60). Reference digital impressions were obtained by an industrialgrade laboratory scanner (Sirona inEos-X5) and superimposed using best fit algorithm. The divergence measure was extracted and the scanners were compared in view of their accuracy using generalized least squares statistical models that account for variance heterogeneity. Additionally, comparative 3D analysis of scans was performed using the reverse engineering software (Geomagic-ControlX) in order to measure the discrepancy between intraoral scans and the reference scan in different anatomic regions of interest: alveolar-crest(AC), cleft(CL), palate(PL), vestibulum(VS), premaxilla(PM).Results: The four IOS showed relevant and significant differences in estimated trueness (P<0.001) and precision (P=0.009). Among all anatomical models and analysed area of interest TS had the best accuracy (trueness: -1.57μm; precision: 9.41μm), followed by MD (trueness: - 20.63μm; precision: 29.18μm), CS (trueness: -40.43μm; precision: 16.52μm) and SO (trueness: 81.27μm; precision: 40.32μm).Conclusions: Impression of the maxilla in cleft lip and palate patients is challenging for the operator. Relevant and significant differences in trueness and precision were found between the four IOS. TS showed the best accuracy and was least influenced IOS under different anatomical situations.","PeriodicalId":48666,"journal":{"name":"International Journal of Computerized Dentistry","volume":"0 0","pages":"0"},"PeriodicalIF":1.8,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143053964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Three-dimensional assessment after maxillary sinus grafting with a bovine, a porcine, and a synthetic bone substitute material. A randomized controlled clinical trial. 猪、牛和合成骨替代材料上颌窦移植后的3D评估。一项随机对照临床试验。

IF 1.8 4区医学

International Journal of Computerized Dentistry Pub Date : 2024-12-09 DOI: 10.3290/j.ijcd.b4494331

Christian M Schmitt, Simon Wiesheu, Karl Andreas Schlegel, Werner Adler, Marco R Kesting, Ragai E Matta, Tobias Möst

{"title":"Three-dimensional assessment after maxillary sinus grafting with a bovine, a porcine, and a synthetic bone substitute material. A randomized controlled clinical trial.","authors":"Christian M Schmitt, Simon Wiesheu, Karl Andreas Schlegel, Werner Adler, Marco R Kesting, Ragai E Matta, Tobias Möst","doi":"10.3290/j.ijcd.b4494331","DOIUrl":"10.3290/j.ijcd.b4494331","url":null,"abstract":"Aim: The present randomized controlled clinical trial focused on graft volume alterations after sinus floor augmentation with a deproteinized bovine bone mineral (DBBM; Bio-Oss), a deproteinized porcine bone mineral (DPBM; THE Graft), or a biphasic calcium phosphate (BCP; Osopia) material.Materials and methods: A total of 28 patients with edentulism in the posterior maxilla with ≤ 5 mm of residual bone height received a two-staged external sinus grafting procedure with DBBM, DPBM, or BCP. Three CBCT scans were performed: 1) prior to surgery (CBCT1); 2) directly after surgery (CBCT2); 3) after a healing period of 4 to 6 months, prior to implant placement (CBCT3). The CBCT scans were used to analyze volumetric alterations of the sinus grafts by virtual 3D model matching of CBCT1 and CBCT2 (situation after sinus grafting), and CBCT1 and CBCT3 (situation prior to implant placement).Results: The volume of the bone graft in the maxillary sinus (volume [VOL%] directly after grafting rated as 100%) was stable after the healing period in the DBBM (VOL%: 103 ± 4%) and the DPBM (VOL%: 112 ± 23%) groups, with no statistically significant differences regarding 3D measurements. In the BCP group, the grafted volume declined to VOL%: 66 ± 25%, statistically inferior to the DBBM and DPBM groups.Conclusions: Regarding bone graft stability/volume, the DBBM and DPBM groups showed comparable outcomes. Due to resorption, the BCP group showed inferior bone graft volume after healing (statistically significant) compared with the DBBM and DPBM groups.","PeriodicalId":48666,"journal":{"name":"International Journal of Computerized Dentistry","volume":"0 0","pages":"325-336"},"PeriodicalIF":1.8,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41216661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A systematic review of methodology for the creation of virtual 3D models for use in dental education and a narrative review. 创建用于牙科教育的虚拟三维模型方法的系统性综述和叙述性综述。

IF 1.8 4区医学

International Journal of Computerized Dentistry Pub Date : 2024-12-09 DOI: 10.3290/j.ijcd.b4224867

Jonathan Robson, Andrea Rung, Miles McCusker, Gary Grant, Roy George

{"title":"A systematic review of methodology for the creation of virtual 3D models for use in dental education and a narrative review.","authors":"Jonathan Robson, Andrea Rung, Miles McCusker, Gary Grant, Roy George","doi":"10.3290/j.ijcd.b4224867","DOIUrl":"10.3290/j.ijcd.b4224867","url":null,"abstract":"Aim: Virtual reality (VR) technologies can be used as a content-delivery system for the purposes of both entertainment and education. Remote and digital education has become increasingly important in a world where disruptive events such as global pandemics and natural disasters can define access to face-to-face learning environments. An important aspect of VR technologies for dentistry is the creation of digital 3D models. The primary objective of the present review was to answer the focused research question: 'What software techniques are used in the creation of digital 3D models for use in dental education?'Methods: The study systematically evaluated current software and techniques used for creating digital 3D models in dental education using PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses).Results: The search strategies did not find any specific studies relating to the creation of dental-related 3D models. Therefore, this is the first study to provide an overview of common techniques of 3D model fabrication. In addition, some examples of methods of creating 3D models relevant to dentistry such as armamentarium and anatomical oral structures are discussed in considerable detail.Conclusion: The creation of 3D modeling is a rapidly evolving field, with software updates and new programs being continually released. The present study highlights the fundamental lack of published work in the creation of 3D dental models for educational applications.","PeriodicalId":48666,"journal":{"name":"International Journal of Computerized Dentistry","volume":"0 0","pages":"337-343"},"PeriodicalIF":1.8,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9849481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Marginal adaptation and fracture resistance of 3D-printed and CAD/CAM-milled definitive resin matrix ceramic crowns. 3D打印和CAD/CAM铣削的最终树脂基陶瓷冠的边缘适应性和抗断裂性。

IF 1.8 4区医学

International Journal of Computerized Dentistry Pub Date : 2024-12-09 DOI: 10.3290/j.ijcd.b4494301

Maryam A Abdulkareem, Abdulla M W Al-Shamma

{"title":"Marginal adaptation and fracture resistance of 3D-printed and CAD/CAM-milled definitive resin matrix ceramic crowns.","authors":"Maryam A Abdulkareem, Abdulla M W Al-Shamma","doi":"10.3290/j.ijcd.b4494301","DOIUrl":"10.3290/j.ijcd.b4494301","url":null,"abstract":"Aim: To evaluate and compare the marginal adaptation and fracture resistance of resin matrix ceramic crowns fabricated using 3D printing and CAD/CAM milling technology.Materials and methods: Thirty extracted human maxillary first premolars were prepared to receive crown restorations and grouped into three groups according to different crown materials used (n = 10): 1) VE: teeth restored with CAD/CAM-milled Vita Enamic; 2) CS: teeth restored with CAD/CAM-milled Cerasmart 270; VSC: teeth restored with 3D-printed VarseoSmile Crown plus. Marginal analysis was performed with the aid of a digital microscope at 230x magnification both before and after cementation with self-adhesive resin cement, and analyzed with ImageJ analysis software. The fracture loads for each sample were then recorded using a universal testing machine in a single load-to-failure test up until crown failure.Results: The lowest marginal gap values were recorded for VSC before (8.03 μm) and after (15.07 μm) cementation, with a significant difference compared with the other crown materials (P 0.05), while the differences between the CAD/CAM-milled groups were not significant, both before (CS [11.35 μm] and VE [11.86 μm]) and after (CS [20.01 μm] and VE [21.08 μm]) cementation. In terms of fracture resistance, the crowns fabricated from VE recorded significantly lower fracture load values (727.8 N; P 0.05) than those fabricated from CS (1213.8 N) and VSC (1181.5 N), which showed no statistically significant differences from each other.Conclusion: 3D-printed definitive crowns outperformed CAD/CAM-milled crowns in terms of marginal adaptation and showed comparable fracture resistance values.","PeriodicalId":48666,"journal":{"name":"International Journal of Computerized Dentistry","volume":"0 0","pages":"355-363"},"PeriodicalIF":1.8,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41216664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Medicine in dentistry. 牙科医学。

IF 1.8 4区医学

International Journal of Computerized Dentistry Pub Date : 2024-12-09 DOI: 10.3290/j.ijcd.b5875146

Florian Beuer

引用次数: 0