Internal and Marginal Fit of Modern Indirect Class II Composite Inlays
Introduction: This in vitro study investigates the marginal and internal fit of indirect class II composite restorations. Two different processes for chair-side restorations were compared. In group A, the restorations were fabricated using CAD/CAM technology (Cerec, Sirona, Germany, Bernsheim) and i...
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Mashhad University of Medical Sciences
2014-06-01
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doaj-fe91384d00424b95a68ad27ac02a78fd2020-11-25T00:18:25ZengMashhad University of Medical SciencesJournal of Dental Materials and Techniques2322-41502252-03172014-06-0133991052967Internal and Marginal Fit of Modern Indirect Class II Composite InlaysPhilipp C. Pott0Agnieszka Rzasa1Meike Stiesch2Michael Eisenburger3Department of Prosthetic Dentistry and Biomedical Materials Research, Hannover Medical School, Hannover, GermanyDepartment of Prosthetic Dentistry and Biomedical Materials Research, Hannover Medical School, Hannover, GermanyDepartment of Prosthetic Dentistry and Biomedical Materials Research, Hannover Medical School, Hannover, GermanyDepartment of Prosthetic Dentistry and Biomedical Materials Research, Hannover Medical School, Hannover, GermanyIntroduction: This in vitro study investigates the marginal and internal fit of indirect class II composite restorations. Two different processes for chair-side restorations were compared. In group A, the restorations were fabricated using CAD/CAM technology (Cerec, Sirona, Germany, Bernsheim) and in group B they were made by hand (GrandioSO Inlay System, VOCO GmbH, Germany, Cuxhaven). Methods: For a metal tooth with a MOD cavity each 10 restorations were made for groups A and B. For each restoration, a replica of the cement-gap made from light body silicone was produced by placing the restoration into the cavity of the metal tooth. For this purpose, a special restoration-positioning machine was developed. Each replica was sectioned off in the longitudinal axis (L) and in the cross axis (C). The thickness of the replicas was measured in both directions, using picture analysis software under a light reflection microscope. To evaluate the fit of the restorations, a special fitting parameter was calculated. Statistical analysis was performed with the t test. Results: The fitting-parameter in group B (L: 97.6µm±73.0µm; C: 71.8µm±46.4µm) was significantly lower than that of group A (L: 155.1µm±102.3.0µm; C: 168.2µm±91.9µm) (Phttp://jdmt.mums.ac.ir/pdf_2967_6bd3f131074eadf9280e8f5d11d2286a.htmlCAD/CAMindirect composite restorationinternal fitmanual manufacturingmarginal |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Philipp C. Pott Agnieszka Rzasa Meike Stiesch Michael Eisenburger |
spellingShingle |
Philipp C. Pott Agnieszka Rzasa Meike Stiesch Michael Eisenburger Internal and Marginal Fit of Modern Indirect Class II Composite Inlays Journal of Dental Materials and Techniques CAD/CAM indirect composite restoration internal fit manual manufacturing marginal |
author_facet |
Philipp C. Pott Agnieszka Rzasa Meike Stiesch Michael Eisenburger |
author_sort |
Philipp C. Pott |
title |
Internal and Marginal Fit of Modern Indirect Class II Composite Inlays |
title_short |
Internal and Marginal Fit of Modern Indirect Class II Composite Inlays |
title_full |
Internal and Marginal Fit of Modern Indirect Class II Composite Inlays |
title_fullStr |
Internal and Marginal Fit of Modern Indirect Class II Composite Inlays |
title_full_unstemmed |
Internal and Marginal Fit of Modern Indirect Class II Composite Inlays |
title_sort |
internal and marginal fit of modern indirect class ii composite inlays |
publisher |
Mashhad University of Medical Sciences |
series |
Journal of Dental Materials and Techniques |
issn |
2322-4150 2252-0317 |
publishDate |
2014-06-01 |
description |
Introduction: This in vitro study investigates the marginal and internal fit of indirect class II composite restorations. Two different processes for chair-side restorations were compared. In group A, the restorations were fabricated using CAD/CAM technology (Cerec, Sirona, Germany, Bernsheim) and in group B they were made by hand (GrandioSO Inlay System, VOCO GmbH, Germany, Cuxhaven). Methods: For a metal tooth with a MOD cavity each 10 restorations were made for groups A and B. For each restoration, a replica of the cement-gap made from light body silicone was produced by placing the restoration into the cavity of the metal tooth. For this purpose, a special restoration-positioning machine was developed. Each replica was sectioned off in the longitudinal axis (L) and in the cross axis (C). The thickness of the replicas was measured in both directions, using picture analysis software under a light reflection microscope. To evaluate the fit of the restorations, a special fitting parameter was calculated. Statistical analysis was performed with the t test. Results: The fitting-parameter in group B (L: 97.6µm±73.0µm; C: 71.8µm±46.4µm) was significantly lower than that of group A (L: 155.1µm±102.3.0µm; C: 168.2µm±91.9µm) (P |
topic |
CAD/CAM indirect composite restoration internal fit manual manufacturing marginal |
url |
http://jdmt.mums.ac.ir/pdf_2967_6bd3f131074eadf9280e8f5d11d2286a.html |
work_keys_str_mv |
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