Decision Making for Restorative and Prosthetic Intervention to the partially Dentate Patients.

用六自由度颌骨跟踪仪(MMJI-II；SHOFU Co.)测量下颌骨的位移。和咬合力的薄力敏感薄膜与计算机分析系统同时(占位者；富士公司。我们试图分析在前牙和磨牙区后牙部分缺失的情况下，是否进行修复治疗的决策。我们的决策由两部分组成：第一部分是患者口头检查的主观评价，直接询问后牙缺失的情况；第二部分是检查人员通过口腔检查做出的客观评价。应用三维X光显微断层扫描技术和最新研制的六自由度轻型颌面跟踪仪对无牙侧和有牙侧的髁突形态进行了对比分析。根据本研究获得的数据，我们对人类是否应该进行修复治疗进行了初步的分析方法，采取了缩短牙弓概念的策略。

We measured the mandibular displacement by the jaw tracking machine with six degree of freedom (MMJI-II ; SHOFU Co.) and occlusal force by thin force sensitive films with computerized analyzing system at the same time (Occiuser ; Fuji Co.).We tried to analyze how the decision making to the prosthetic intervention whether to proceed prosthetic treatment or not in the partially loss of posterior teeth in premolar and molar region in the form of distal extension denture or shortened dental arch (SDA) without prosthesis.Our decision making were consisted of two parts: first one was the subjective assessment by the patients with verbal inspections, direct inquiry about the loss of posterior teeth, second one was the objective assessment by the inspectors with oral examinations, comparative analysis of the condylar morphology in the edentulous and dentulous side by the three dimensional X-ray micro tomography and newly developed light weight jaw tracking machine with six-degree of freedom.We conducted a pilot analytical methods to diagnose whether man should proceed into the prosthetic treatment or not, taking strategy in the shortened dental arch concept according to the data obtained in this study.