ISSN (Online): 2035-648X
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Marginal fit of indirect composite inlays using a new system for manual fabrication
 

Type:  Articles

Pubblication date:  09/2016

Authors:  P. Pott, A. Rzasa, M. Stiesch, M. Eisenburger

Language:  English

Institution:  Department of Prosthetic Dentistry and Biomedical Materials Research, Hannover Medical School, Hannover, Germany

Publication:  European Journal of Paediatic Dentistry

Publisher:  Ariesdue Srl

Keywords:  CAD/CAM technology; Composite inlays; Indirect composite restorations; Marginal fit.

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Title:  Marginal fit of indirect composite inlays using a new system for manual fabrication

Abstract:  Aim This in vitro study compares a new system for manual chair side fabrication of indirect composite restorations, which uses silicone models after alginate impressions, to CAD/CAM-technology and laboratory manual production techniques. Methods and study design Each 10 composite inlays were fabricated using different types of production techniques: CAD/CAM-technology (A), the new inlay system (B), plaster model after alginate impression (C) or silicone impression (D). The inlays were adapted into a metal tooth and silicone replicas of the cement gaps were made and measured. Statistical analysis was performed using ANOVA and Tukeys test. Results and Statistics In group A the biggest marginal gaps (174.9 m 106.2 m) were found. In group B the gaps were significantly smaller (119.5 m 90.6 m) than in group A (p=0.035). Between groups C (64.6 m 68.0 m) and D (58.2 m 61.7 m) no significant differences could be found (p=0.998), but the gaps were significantly smaller compared with group B, Conclusion Chairside manufacturing of composite inlays resulted in better marginal precision than CAD/CAM technology. In comparison to build restorations in a laboratory, the new system is a timesaving and inexpensive alternative. Nevertheless, production of indirect composite restorations in the dental laboratory showed the highest precision.

 
 
 
 
 
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European Journal of Paediatric Dentistry | ISSN (Online): 2035-648X |
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