マイクロ波重合レジン床義歯の寸法変化に影響を及ぼす因子の検討  [in Japanese] Analysis of Dimensional Accuracy Variables for Maxillary Complete Denture Processed with Microwave-curing Resin  [in Japanese]

射出成形法マイクロ波重合レジンの総義歯と, 従来の加圧填入法マイクロ波重合レジンの総義歯は, 異なった寸法変化の傾向を示すことが知られている.本報では, 寸法変化に影響を及ぼす因子を明らかにすることを目的として, 床用材料, 二次埋没に用いる石こう, レジンの填入方法, マイクロ波の照射時間および徐冷サイクルを因子として取り上げ, 実験計画法による検討を行った.その結果, 以下の結論が得られた.マイクロ波重合レジンの寸法変化に影響を及ぼす因子は, 床用材料, 義歯の二次埋没に用いる石こうおよびマイクロ波の照射時間であった.

In a previous study, dentures processed with injection type microwave-curing resin and conventional type microwave-curing resin showed different dimensional accuracy. The purpose of this study was to elucidate the variables that exert the influence on dimensional change. The variables of denture base material, investment material, molding technique, microwave exposing time and bench cooling time were analyzed with robust design methods, and the conditions imposed in the study were compared. The variables affected dimensional accuracy for complete denture processed with microwave-curing resin were denture base material, investment material and microwave exposing time.