Abstract
Dental fillings are proven as a reliable and effective way for the restoration of tooth crowns that have been partially lost due to caries or trauma such as cracking or chipping due to load from mastication, biting or bruxism. There are multiple types of dental filling materials, including metals, ceramics, and composites. Finite element analysis is able to calculate the stress and strain of materials under loading and, hence, can be used for biomechanics analysis of dental fillings. In this study, finite element analysis is used to simulate the situation when a mastication loading is applied on the occlusal surface that has dental filling. The dental filling materials were amalgam, gold, and bioglass. The dental restorations were enamel deep and dentine deep. It was found that the stress magnitude in enamel deep restoration is higher than the stress in enamel/dentine restoration. The bioglass filling experienced the highest stress magnitude in both restoration depths while amalgam the lowest. The highest stress occurred at the interface between the tooth tissue and the dental filling.
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