部分床義歯装着による咀嚼能力ならびに鉤歯動揺度の経時的変化

概要

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In order to investigate masticatory function and influence on remaining tissue by wearing denture, 13 patients with removable free-end denture werce observed longitudinally up to one year after initial insertion. Masticatory function was evalu;tted by measuring the crushed peanut particles remaining on 10 mesh sieve and biting force, and the influence on remaining tissue was estimated by measuring tooth mobility. The findings were as follows : 1. Weight decrease of the particles with time showed an improvement of chewing ability. 2. From the variation of particle size distribution, patients without occlusal contact with antagonist (OCA) showed the lowest chewing ability at first, and then improved gradually. 3. The longitudinal alteration of maximum biting force showed two-phases. That rapidly increased in the first month and then slowed down. The biting force was stronger in order of bilateral denture case, unilateral case with OCA, and case without OCA. 4. In denture case without OCA and bilateral case with OCA, the tooth mobility increased in insertion of denture, but came to decrease 3 month later. In untlateral denture case with OCA, however, the tooth mobility did not increase until 3 month. Continuous increase of tooth mobility was almost never observed.
日本補綴歯科学会の論文
1991-08-01