PMID: 2488898Jan 1, 1989Paper

An experimental study on change on the contralateral temporomandibular joint after unilateral condylectomy on one of the bilateral joints

Fukuoka Shika Daigaku Gakkai Zasshi
T Shimoda

Abstract

In this study I examined the macroscopic, radiological and histopathological changes on the contralateral temporomandibular joint following condylectomy on one of the bilateral temporomandibular joints on adult female Macaca fuscatas. I made a standardized radiographic apparatus for the temporomandibular joint and head for the Macaca fuscata on an experimental basis for radiological observation through the whole passage of time before making the experiment. The results were as follows: 1) In macroscopic observation, I noticed the entire mandible directed toward the operated side at opening the mandible and the anterior and molar (unoperated side) open bite after the operation. Besides the masticatory side altered and the degree of tooth attrition made progress with the passage of time. 2) According to radiographic investigation with an anteroposterior radiograph, complicated shift and rotation of the mandible were observed since the operation. According to the radiograph of condyle, distal displacement of the temporomandibular joint, widening of joint space and clockwise rotation of the mandible were confirmed. A shadow of bone was found in the articular surface of the mandibular head on the 123rd day. 3) The following findings...Continue Reading

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