上顎全部床義歯の動揺に関する研究 : 第1報 三次元的動揺量測定装置の開発

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概要

• 論文の詳細を見る

• Removable prothodontic appliances, particularly such as complete dentures, move three-dimensionally during masticatory movement. It is,therefore, difficult to aquire the stability of dentures during masticatory movement. The purpose of this study is to quantitate the movement three-dimensionally and consecutively as well as to evaluate the stability of the maxillary complete denture during masticatory movement. Firstly, a system for measuring the amount of the movements of maxillary complete denture was developed. The detail of this system is as follows : 1. This system consists of 5 components including Mandibular Kinesiograph (MKG), fiberoptic transducer, sensor fixed equipments, sensor setting-up jig and recorder. 2. This system is able to measure the spatial location of a maxillary complete denture by detecting the movements of the magnet and three dimensional vector independently by fiberoptic transducer and MKG at the same time. 3. The detecting accuracy of this system was approximately 120 pm when the amount of movements at the first molar region are ±1,000 μm As a clinical application, movements of maxillary complete denture of an edentulous patient were examined with this system. 1. The amount of denture movements from rest position was observed three-dimensionally and consecutively. 2. Three-dimensional measurements of denture movements made it possible to detect the direction of denture rotation.

• 社団法人日本補綴歯科学会の論文
• 1988-06-01

著者

• 今井 守夫

  徳島大学歯学部歯科補綴学第1講座

• 今井 守夫

  徳島大学大学院歯学研究科

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