Lateral Excursions with Complete Denture during Mastication in Telemetry System.

摘要本研究的目的是探讨全口义齿在遥测系统中咀嚼时发生侧移的发生率。遥测系统由发射单元和接收单元组成。发射器单元嵌入下全口义齿。发射器允许6通道咬合接触数据。采用时分复用通信方式遥测数据。实验上下全口义齿建立双侧平衡咬合后，在左下颌和右下颌第一磨牙上插入特殊开关，测量侧移时的咬合接触。同时记录两组的咬合接触和下颌运动情况。这项研究的对象是一位64岁的无牙男性。他习惯咀嚼的一面是对的。实验结果如下：1.实验结果表明：右侧咀嚼时游离性闭包占36.0% ~ 71.1%，左侧咀嚼时游离性闭包占4.9% ~ 20.9%。大多数的漂移性闭包包括从侧边位置到中心位置的滑动。下第一磨牙咬合面侧移滑动宽度主要在0.8mm-1.2mm之间。

The purpose of this study was to investigate the incidence of lateral excursions with complete denture during mastication in telemetry system. The telemetry system consisted of the transmitter unit and the receiver unit. The transmitter unit was embedded in the lower complete denture. The transmitter allowed 6 channels data of the occlusal contacts. The data was telemetered by time division multiplex communication method. After establishing bilateral balanced occlusion for experimental upper and lower complete dentures, special switches were inserted in the lower left and right first molars, to measure the occlusal contacts in lateral excursions. Occlusal contacts and mandibular movements were recorded at the same time. The subject in this study was a 64 aged edentulous male. His habitual chewing side was right. The results were follows:1. Excursive closures constituted 36.0%-71.1% of the total closures when chewing on the right side and 4.9%-20.9% on the left side.2. The majority of excursive closures consisted of glidings from lateral position to centric position.3. The width of glidings in lateral excursions on the occlusal surface of the lower first molar was mainly ranged 0.8mm-1.2mm.