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Analysis of initial occlusal contacts of implant prostheses

种植修复体初始咬合接触分析

基本信息

批准号：
23792247
负责人：
OKUYAMA Tokiko
金额：
$ 1.5万
依托单位：
Showa University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Young Scientists (B)
财政年份：
2011
资助国家：
日本
起止时间：
2011 至 2012
项目状态：
已结题

项目摘要

Mechanical factors such as occlusal gap, occlusal load and occlusal contact area are most important for long-term successful of implant treatment. Slight disharmony of occlusion in implant prostheses may cause many problems because those have not a periodontal membrane and nerve system as a stress breaker. However, regarding the optimum occlusal contacts of implant prostheses, there are still many unclear points. The purpose of this study was to investigate an evaluating method of occlusal gaps using a bite area measurement system (Bite Eye) in order to obtain high reproducibility and reliability. It was examined that it would be possible to assess occlusal contacts correctly by recordingvariations of changes in occlusal load according to clenching strength of implant prostheses. Although occlusal gap recorded by a black silicon in the early research program, there were recorded by a bite area measurement system (Bite Eye) which were newly developed. By using this, it can measure simpler and can ease a patient's burden. The purpose of this study was to evaluate the effectiveness of a Bite Eye in this study, it was examined whether it would be possible to recordcorrectly the occlusal load and occlusal contact area from the weak clenching to the strong clenching by using together bite force measurement system (Occluzer) and bite area measurement system (Bite Eye) with Electromyograms. As a result, it was suggested that it was appropriat to record at the clenching level of 60 MVC or more strength by Occluzer, and at the clenching level of 20-60 MVC by Bite Eye prostheses restoring to the patients with an implant for a single intermediate missing posterior tooth. In the result occlusal gap of implant immediately after implant prostheses restoring were 90 μm. From now on, a long-term study is needed to determine the functional aspects and and to establish a guideline for adequate occlusion.

咬合间隙、咬合负荷、咬合接触面积等力学因素是影响种植体长期成功的重要因素。种植义齿由于没有牙周膜和神经系统作为应力破坏器，咬合关系稍有不协调，就会引起许多问题。然而，关于种植义齿的最佳咬合接触，仍有许多不明确之处。本研究的目的是探讨使用咬合面积测量系统（Bite Eye）评估咬合间隙的方法，以获得高的重复性和可靠性。研究结果表明，根据种植义齿的咬合强度，通过记录咬合负荷的变化来正确评价咬合接触是可能的。早期的研究中，咬合间隙的记录是用黑硅记录的，而最近发展起来的咬合面积测量系统（Bite Eye）则可以记录咬合间隙。通过使用这个，它可以测量更简单，可以减轻病人的负担。本研究的目的是评价咬合眼的有效性。在本研究中，研究了咬合力测量系统（Occluzer）和咬合面积测量系统（Bite Eye）结合肌电图是否能够正确记录从弱咬牙紧到强咬牙紧的咬合负荷和咬合接触面积。结果表明，对于单个中位后牙缺失的患者，采用Occluzer在60 MVC以上的咬合力水平进行记录，而采用Bite Eye修复体在20-60 MVC的咬合力水平进行记录是合适的。结果种植修复后即刻种植体咬合间隙为90 μm。从现在开始，需要进行长期的研究，以确定功能方面，并建立一个适当的咬合准则。