複製義歯の寸法精度について
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概要
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However, when we make new denture, the new denture setting changes intraoralenviroment severely, whithout utilizing the information of old denture, it tend to confuse the learned neuromuscalar function before. Therefore, we modified the old denture to accurate occulusal relation and functional contour of denture base, the duplicate denture seemes to have better intraoral fitting, higher function and adaptation. But, I do not have enough studies about the reappearance of dimension of duplicate denture. In this study, I have examined wheber the dimendional precision of the mucosal surface of duplicate denture is affected by the combination of the impression materials for duplicate and denture bace reisn with upper and lower denture patients. Results was as follows : 1. The all duplicate dentures showed different morphological changes due to the combination of impression materials for duplicate and denture bace resin. 2. The immediate change of duplicated all upper tend to cotract centric direction of denture base in the alginate impression material, on the other hand, the silicone impression material had alost same chage, however, the border of second premolar and the second molar. The change of Rebaron, Palapress and Pour resion P had a tendency to submage to direction mucosal surface. 3. The immediate change of duplicated all lower dentures was apt to contract centric direciton of denture base in the alginate impressin material, on the other hand, silicon the impression material had same change. However, retromolarpat part in Palapress and Pour resin P had an inclination to contract somewhat posterior from basic point. 4. The duplicated all upper and lower dentures showed small change after duplicate on the long term dimensional change.
- 福岡歯科大学学会の論文
- 1995-03-31