Estimation of the mechanical lifetime of dental restorations: method and preliminary results
| Autor: | P.L.M. Lemmens, P.G.T. van der Varst, M.C.R.B. Peters, Alphons J. M. Plasschaert |
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| Rok vydání: | 1991 |
| Předmět: |
Engineering
Time Factors medicine.medical_treatment Biomedical Engineering Biophysics engineering.material Composite Resins Dental Amalgam Models Biological Bite Force Stress (mechanics) Tensile Strength Ultimate tensile strength Materials Testing Forensic engineering medicine Humans Orthopedics and Sports Medicine Bicuspid Dental Restoration Permanent Probability Models Statistical business.industry Rehabilitation Clinical performance Mechanical failure Experimental data Structural engineering Elasticity Amalgam (dentistry) Mastication Stress Mechanical business Dental restoration |
| Zdroj: | Journal of biomechanics. 24(5) |
| ISSN: | 0021-9290 |
| Popis: | To assess the clinical performance of restorative materials with respect to mechanical failure, the shape of the restoration, the strength and fatigue properties and the loading history are important. This study deals with the feasibility of a method to estimate the mechanical lifetime of dental restorations. The method takes into account that the mechanical lifetime is a stochastic quantity determined by shape, strength and fatigue properties and by the cyclic nature of the mastication forces. The general outline of the method is described and the necessary experimental data are discussed. Preliminary estimates of the lifetime of a composite and an amalgam restoration are made. The method is found to be feasible and the estimated lifetimes of the restoration are of the same order of magnitude as found clinically. |
| Databáze: | OpenAIRE |
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