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

采用六自由度下颌跟踪仪（MMJI-II; SHOFU Co.）测量下颌位移，同时采用微机分析系统（Occiuser; Fuji Co.）测量薄力敏感薄膜的咬合力。我们试图分析在前磨牙和磨牙区部分后牙缺失的情况下，以远端延伸义齿或缩短牙弓（SDA）的形式进行义肢干预时，是否进行义肢治疗的决策。我们的决策由两部分组成：一是由患者通过口头检查进行主观评估，直接询问后牙的脱落情况；二是由检查员通过口腔检查进行客观评估，通过三维x射线微断层扫描和新开发的轻型六自由度下颌跟踪机对无牙和有牙侧髁突形态进行对比分析。我们根据本研究获得的数据，在缩短牙弓概念下采取策略，对男性是否应该进行假体治疗进行了初步的分析方法诊断。

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.