Investigation of the removable partial denture design based on the in vivo 3-D force analyses on the abutment tooth of the removable partial denture

基于可摘局部义齿基牙体内 3D 力分析的可摘局部义齿设计研究

• 批准号: 15390583
• 负责人: SASAKI Keiichi
• 金额: $ 7.49万
• 依托单位: TOHOKU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-15390583/
• 关键词: partial denture; abutment tooth; piezo-electric transducer; load measurement; 3-dimensional; 生体内測定; 圧電式センサ; 支台歯荷重; インプラント; 荷重

The purpose of this study is to clarify the behavior of the load applied to the abutment tooth by means of the 3-dimensional force measuring device with a piezo-electric transducer that we have developed. It is important to know that load for partial denture design including the selection of the abutment tooth and occlusal scheme. The custom-made force measuring device comprised an inner part forming a metal core, a force transducer, and an outer part forming a metal crown.The subjects were a young male with natural dentition and an old female with partial edentulous dentition. Informed consent was obtained after full explanation of this study. The experimental teeth were the maxillary left second molar of dentulous subject and mandibular right second premolar of partial edentulous subject.When the partial edentulous subject wearing the denture with distal rest clenched maximally, the magnitude of the load applied to the abutment tooth decreased significantly than without the denture. When the partial edentulous subject wearing the denture with medial rest clenched maximally, the angle of the load direction was decreased significantly than without the denture. On the other hand, there was significant difference between the angles with the medial rest and with the distal rest. When the partial edentulous subject wearing the denture with distal rest clenched maximally, the angle of the load direction was increased significantly than the denture with medial rest. The force vector with the medial and distal rests directed most laterally, and that with the medial rest directed most downward. There was not significant difference among the directions of four different conditions in the frontal plane.In the dentulous subject, The maximum magnitude was 173.3±15.3N during MVC. As the magnitude of the compressive force increased, the load direction changed three dimensionally. Tractive forces were recorded throughout the chewing the sticky food.

这项研究的目的是通过使用我们已经开发的压电电换能器的3维力测量装置来阐明载荷的行为。重要的是要知道部分密度设计的负载，包括选择基牙和咬合方案。定制的力测量装置完成了一个内部部分，形成了金属芯，力传感器和形成金属牙冠的外部。受试者是年轻的男性具有自然牙齿的男性，并且具有部分牙齿牙齿牙齿的老雌性。在全面解释这项研究后，获得了知情同意。实验牙齿是上颌左第二摩尔的牙齿牙齿齿和下颌右第二前磨牙的局部牙齿牙齿牙齿牙齿的牙齿。当部分倾听的受试者戴着牙医的介质紧握的最大值时，负载方向的角度明显提高，而没有牙医。另一方面，与媒体休息的角度和不同的休息之间存在显着差异。当部分倾听的受试者穿着牙医的最大静止夹紧时，负载方向的角度比牙医休息显着增加。与媒体和独特的部队向量最为侧向，而媒体休息最向下。额叶平面中四个不同条件的方向之间没有显着差异。在牙齿牙齿的受试者中，MVC期间的最大幅度为173.3±15.3n。随着压缩力的大小增加，负载方向在三个维度上变化。在整个咀嚼食物中记录了拖拉力。

项目成果

In vivo Force Measurement in Abutment Tooth of Partial Denture with Piezo-electric Transducer

压电传感器活体义齿基牙受力测量

• 发表时间: 2003
• 期刊: Japan Prosthodontic Society 69
• 作者: Kawaguchi T;Kawata T;Sasaki K;Kuriyagawa T
• 通讯作者: Kuriyagawa T

川口威史, 川田哲男, 佐々木啓一, 厨川常元: "小型水晶圧電式センサによる部分床義歯支台歯の荷重測定"第109回日本補綴歯科学会抄録集. 47・109. 69 (2003)

Takeshi Kawaguchi、Tetsuo Kawada、Keiichi Sasaki、Tsunemoto Kuriyakawa：“使用小型晶体压电传感器测量局部义齿基牙上的负载”第 109 届日本修复医学会论文集 47・109。

Kawaguchi T, Kawata T, Sasaki K, Kuriyagawa T: "In vivo 3-D force measurement on the abutment tooth of removable partial denture"Int J Prosthodont. (in print). (2004)

Kawaguchi T、Kawata T、Sasaki K、Kuriyakawa T：“可摘局部义齿基牙的体内 3D 力测量”Int J Prosthodont。

In vivo 3-dimensional measurement of the force exerted on a tooth during clenching

• DOI: 10.1016/j.jbiomech.2006.01.004
• 发表时间: 2007-01-01
• 期刊: JOURNAL OF BIOMECHANICS
• 影响因子: 2.4
• 作者: Kawaguchi, T.;Kawata, T.;Sasaki, K.
• 通讯作者: Sasaki, K.

In vivo 3-D force measurement on the abutment tooth of removable partial denture

可摘局部义齿基牙的体内 3D 力测量

• 发表时间: 2004
• 期刊: Int J Prosthodont (In print)
• 作者: Kawaguchi T;Kawata T;Sasaki K;Kuriyagawa T
• 通讯作者: Kuriyagawa T