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Three-dimensional finite element analysis of thermal shock in a premolar with a composite resin MOD restoration
D N Fenner1, P B Robinson, P M Cheung
1Department of Mechanical Engineering, King's College London, UK.
Medical Engineering & Physics
|September 5, 1998
Abstract:
A three-dimensional finite element model of a human premolar with a composite resin Class II MOD has been used to investigate the temperature changes and induced thermal stresses associated with the imbibing of a hot liquid. Regions of high tensile stress were revealed and their possible clinical significance with respect to microleakage and failure in the approximal region of the restoration are discussed.