A clinical and experimental study of the biomechanical factors associated with tooth destruction

本项目探讨咬合力对牙齿非龋和龋缺陷发育的影响。将应变片粘接在拔牙的颈部和口腔内的牙齿上，对牙齿的咬合面施加力，并通过应变片测量其产生的应力。一种轮廓技术和高倍显微镜将被用来确定由于在酸的存在下施加力而导致的牙齿结构损失的数量。此外，将生成一个计算机模型，以确定它是否可以用于预测应力。在临床研究中，有和没有龋齿缺陷的患者将被随访三年，以评估牙齿结构的形态变化和测量所发生的牙齿结构体积损失。

This project investigates the influence of biting force on the development of non-carious and carious defects of teeth. Strain gauges will be cemented to the neck region of extracted teeth and teeth in the mouth, forces applied to the biting surfaces of the teeth, and the stress which results will be measured by the strain gauge. A profiling technique and high-power microscopy will be used to determine the amount of tooth structure lost as a result of applying the forces in the presence of acid. In addition, a computer model will be generated, to determine whether it can be used to predict the stresses. In a clinical study, patients with and without non-carious defects will be followed for three years in order to assess the morphological changes and measure the volume loss of tooth structure which occurs.