Estimation of the Risk of Failure for an Endodontically Treated Maxillary Premolar With MODP Preparation and CAD/CAM Ceramic Restorations

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Please use this identifier to cite or link to this item: http://140.128.103.80:8080/handle/310901/23125

Title:	Estimation of the Risk of Failure for an Endodontically Treated Maxillary Premolar With MODP Preparation and CAD/CAM Ceramic Restorations
Authors:	Lin, C.-L., Chang, Y.-H., Pa, C.-A.
Contributors:	Department of Chemistry, Tunghai University
Keywords:	Endocrown;endodontically treated premolar;failure probability;finite element analysis;Weibull analysis
Date:	2009
Issue Date:	2013-06-11T09:00:45Z (UTC)
Abstract:	Introduction: This study evaluated the risk of failure for an endodontically treated premolar with mesio occlusodistal palatal (MODP) preparation and 3 different computer-aided design/computer-aided manufacturing (CAD/CAM) ceramic restoration configurations. Methods: Three 3-dimensional finite element (FE) models designed with CAD/CAM ceramic onlay, endocrown, and conventional crown restorations were constructed to perform simulations. The Weibull function was incorporated with FE analysis to calculate the long-term failure probability relative to different load conditions. Results: The results indicated that the stress values on the enamel, dentin, and luting cement for endocrown restoration were the lowest values relative to the other 2 restorations. Weibull analysis revealed that the individual failure probability in the endocrown enamel, dentin, and luting cement obviously diminished more than those for onlay and conventional crown restorations. The overall failure probabilities were 27.5%, 1%, and 1% for onlay, endocrown, and conventional crown restorations, respectively, in normal occlusal condition. Conclusions: This numeric investigation suggests that endocrown and conventional crown restorations for endodontically treated premolars with MODP preparation present similar longevity.
Relation:	Journal of Endodontics 35 (10) , pp. 1391-1395
Appears in Collections:	[化學系所] 期刊論文

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