scholarly journals Assessment of marginal fit and the match of crowns made of various materials in the CAD/CAM technology to the abutment tooth

2021 ◽  
Vol 71 (3) ◽  
pp. 216-227
Author(s):  
Daniel Surowiecki
Keyword(s):  
Marginal Fit ◽  
Cad Cam

Marginal fit and photoelastic stress analysis of CAD-CAM and overcast 3-unit implant-supported frameworks

2017 ◽  
Vol 117 (3) ◽  
pp. 373-379 ◽  
Author(s):  
Anna Gabriella Camacho Presotto ◽  
Cláudia Lopes Brilhante Bhering ◽  
Marcelo Ferraz Mesquita ◽  
Valentim Adelino Ricardo Barão
Keyword(s):  
Stress Analysis ◽  
Marginal Fit ◽  
Cad Cam ◽  
Photoelastic Stress

The Marginal Fit of CAD/CAM Monolithic Ceramic and Metal-Ceramic Crowns

2017 ◽  
Vol 28 (3) ◽  
pp. 299-304 ◽  
Author(s):  
Yolanda Freire ◽  
Esther Gonzalo ◽  
Carlos Lopez-Suarez ◽  
Maria J. Suarez
Keyword(s):  
Marginal Fit ◽  
Metal Ceramic ◽  
Cad Cam ◽  
Ceramic Crowns

Marginal fit of CAD CAM all ceramic inlays: preliminary study

2018 ◽  
Author(s):  
Luciana M. Goguta ◽  
Andrei Gavrilovici ◽  
Anca Jivanescu ◽  
Florin Topala
Keyword(s):  
Marginal Fit ◽  
Ceramic Inlays ◽  
All Ceramic ◽  
Cad Cam ◽  
Preliminary Study

Marginal Fit of Heat-pressed vs CAD/CAM Processed All-ceramic Onlays Using a Milling Unit Prototype

2008 ◽  
Vol 33 (6) ◽  
pp. 644-650 ◽  
Author(s):  
S. Reich ◽  
S. Gozdowski ◽  
L. Trentzsch ◽  
R. Frankenberger ◽  
U. Lohbauer
Keyword(s):  
Clinical Relevance ◽  
Clinical Performance ◽  
Important Influence ◽  
Marginal Gap ◽  
Marginal Fit ◽  
All Ceramic ◽  
Cad Cam ◽  
Ceramic Restorations

Clinical Relevance The marginal fit of all-ceramic restorations has an important influence on the clinical performance and lifetime of adhesively luted restorations. In proximal boxes, an average marginal gap of less than 100 μm is claimed. These clinical requirements are fulfilled by both processing procedures.

scholarly journals Marginal fit of anterior 3-unit fixed partial zirconia restorations using different CAD/CAM systems

2013 ◽  
Vol 5 (3) ◽  
pp. 219 ◽  
Author(s):  
Tae-Jin Song ◽  
Taek-Ka Kwon ◽  
Jae-Ho Yang ◽  
Jung-Suk Han ◽  
Jai-Bong Lee ◽  
...  
Keyword(s):  
Marginal Fit ◽  
Cad Cam ◽  
Cam Systems

scholarly journals Influence of milling systems and marginal configurations on the fit of yttrium stabilized tetragonal zirconia polycrystals (Y-TZP)’ copings

2020 ◽  
Vol 18 ◽  
pp. 228080002092451
Author(s):  
Khulud A Al-Aali ◽  
Mohammed S. Bin-Shuwaish ◽  
Aasem M Alhenaki ◽  
Khold Al Ahdal ◽  
Laila Al Deeb ◽  
...  
Keyword(s):  
Computer Aided Design ◽  
Tetragonal Zirconia ◽  
Finish Line ◽  
Marginal Fit ◽  
Optical Scanner ◽  
Type Iv ◽  
Computer Aided ◽  
Cad Cam ◽  
Aided Design ◽  
System 1

Objective: The aim of this study was to evaluate marginal fit of yttrium tetragonal zirconia polycrystals (Y-TZP)’ copings with different finish line designs fabricated with various digital scanners and milling systems. Methods: Three model plastic teeth were prepared with three finish line designs: Design-1, continuous chamfer; Design-2, chamfer with shallow depression; Design-3, chamfer with deep depression. The “master models” were replicated using elastomeric polyvinyl siloxane impression material and poured in type IV stone generating 90 dies, 30 dies for each design. Dies were scanned and copings were milled utilizing three digital scanners and computer-aided design/computer-aided manufacturing (CAD/CAM) systems: System-1, InEos Red Scan (Sirona Dental Systems, Germany), Vitablocks® Mark II (VITA, Germany) copings milled by Cerec® inLab (Sirona Dental Systems, Germany); System-2, Cerec® AC Connect with BlueCam (Sirona Dental Systems, Germany), Vitablocks® Mark II (VITA, Germany) copings milled by Cerec® inLab (Sirona Dental Systems, Germany); and System-3, NobleProcera™ Optical Scanner (NobleBiocare™), procera zirconia coping milled by a Noble Procera™ milling machine (NobleBiocare™). Copings were seated on their respective “master models” and secured with uniform force. Eight measurements per coping were performed at pre-established points, with a metallurgical microscope (Zeiss, Germany) connected to a high precision digital video-micrometer (Javelin JV6000, California, USA) at 200 × magnification. Results: The tested systems demonstrated marginal gaps ranging from 12.4 to 26.6 µm. Results for marginal fit of milled copings fabricated using three systems with different finish line designs differed significantly ( p < 0.05). Procera zirconia copings scanned and milled with NobleProcera™ exhibited significantly lower marginal gaps compared to other specimen groups. However, InEos Red Scan/Vitablocks® Mark II/Cerec® inLab showed maximum marginal gaps among the study specimens. Conclusions: CAD-CAM manufactured Y-TZP’ copings exhibited marginal gaps ranging from 12.49 to 26.6 µm. The CAD-CAM fabrication system was a significant factor influencing the marginal misfit of Y-TZP’ copings. Margin design exhibited system dependent influence on the marginal misfit. Marginal misfit observed for all systems were within clinically acceptable parameters.

The Marginal Fit of CAD-CAM Zirconia Cores with Different Proximal Margin Configurations

2007 ◽  
Vol 330-332 ◽  
pp. 1409-1412
Author(s):  
O.E. Puntsag ◽  
E.K. Bae ◽  
Jae Hoon Lee ◽  
Keun Woo Lee
Keyword(s):  
Statistical Difference ◽  
Marginal Gap ◽  
Proximal Margin ◽  
Marginal Fit ◽  
Group I ◽  
Metal Ceramic ◽  
Cad Cam ◽  
The Mean ◽  
Tooth Axis

This study evaluated the marginal fit of CAD-CAM Zirconia cores with different proximal height. Thirty Zirconia cores and ten metal ceramics crowns were used to evaluate the marginal gap. The marginal fit was determined to be perpendicular to the tooth axis between the most apical point on the coping margin (core) and the reference marks on the mesial, distal, labial, and palatal surfaces of the die at several key stages of crown fabrication; before porcelain built-up, after body porcelain built-up, and after glazing. Additionally, an opaque stage for the metal ceramic copings was compared as well. Each measurement was carried out with a microscope. The means of gaps among the groups were 58±27 -m, 69±23 -m, 89±29 -m and 80±28 -m, groups I, II, III and IV, respectively. In relation to the proximal and labiopalatal surfaces there were no statistical difference among the groups, except group I. No significant differences were observed in firing stages of all groups. The findings of this study showed that the mean marginal gap of Zirconia cores with different proximal heights fell well within the acceptable clinical ranges.

Effect of cement space on the marginal fit of CAD-CAM-fabricated monolithic zirconia crowns

2016 ◽  
Vol 116 (6) ◽  
pp. 890-895 ◽  
Author(s):  
Ediz Kale ◽  
Emre Seker ◽  
Burak Yilmaz ◽  
Tuncer Burak Özcelik
Keyword(s):  
Marginal Fit ◽  
Cad Cam ◽  
Zirconia Crowns ◽  
Monolithic Zirconia
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