少数歯残存例における歯の保存および抜歯についての一考察

概要

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The alveolar bone of edentulous ridge is resccrbed after the teeth extraction and the subsequent denture insertion. For the periodontal structure, the stress transmitted along the longitudinal axis is favorable, but the horizontal stress is destructive. Under the overdenture application which the retained teeth have the reduced clinical crown, it is possible to prevent the alveolar botte resorption auad to improve the involved teeth. However it is difficult for the inclined teeth to get the successful results. In a case, having a few remained teeth contained the embedded root stump and the overdenture being applicated, we obtained the suggestion as follows. 1. Also the embedded root stump is useful to prevent the alveolar bone resorption. 2. The top and direction of louagitudinal axes of the inclined abutment teeth can be determined by means of surveying the least teeth movement when the stress was applied to the teeth by the fingers xvith dental pincette. 3. Also to the inclined abutment teeth, it is possible to transmitt the stress along the longitudinal axes, when the overdenture has the contact with the short dome coping at the top and in the inferior area to the loutgitudinal axes inclined, and is relieved in the superior area to its axes.
日本補綴歯科学会の論文
1990-04-01