様々な顎の形状に応じた義歯床の適合精度。バイオテクニカル分析

[Accuracy of fit of the denture base depending on various jaw geometries. Biotechnical analysis].

抄録

総義歯の良好な機能は，義歯床の正確な適合性と密接に関係している．この義歯床の形状は，重合技術に依存している．歯槽堤（垂直面との角度）が適合精度に及ぼす影響を明らかにするために，生体工学的な解析方法を採用した．この解析では，鋳造物の膨張とアクリル樹脂の硬化収縮の両方を考慮した．また，総義歯床面積の増減と義歯床との接着機構との関係を計算し，その実用的意義について考察した．

Good function of full dentures is closely related to an accurate fit of the denture bases. The shape of these bases depend again on the polymerization technique applied. Methods of biotechnical analysis were employed to determine the effects of the alveolar ridge, defined as an angle with the vertical plane, on the accuracy of fit. Both the expansion of castings and the curing contraction of acrylics were taken into consideration in this analysis. The relationships between an increase or reduction of the full denture base and the mechanism of adhesion to the denture-bearing area were computed and their practical implications are discussed.