Abstract
In this paper, the stress characteristics of dental prosthesis were analyzed to study effects of mechanical human oral conditions. Finite element method was used to analyze for 3D dental bridge model. 3D models were constructed by 3D CAD system and modeling software developed for dental technology. Mechanical conditions were set biting strength loaded for facies occlusalis and abutment tooth constrained taken into account incompatibility and loosening between prosthesis and natural tooth. It was found from the results that von mises stress at the part of connecting bridge model was increased with more misfit conditions. The results showed that incompatibility and loosening of the dental bridge generated larger stress and that the case accounted for dental bridge fracture.
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