P-61 歯冠補綴用コンポジットレジンオペークの熱膨張係数と接着耐久性との関係(コンポジットレジン,一般講演(ポスター発表),第56回日本歯科理工学会学術講演会)

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Three kind opaque resins in which thermal expansion coefficients differed were produced experimentally by the change of filler content and catalyst, and the relationship between the bond durability with 12% Au-Ag-Pd alloy (α=17.4〜17.7×10^<-6>/℃) and those thermal expansion coefficients were examined. Thermal expansion coefficients of opaque resins were 43.6, 55.5 and 38.8×10^<-6>/℃. The bond strength was not decreased after the thermal cycle (10000 cycles). The bond durability was not significantly influenced by the thermal expansion coefficients of the opaque resins.
2010-09-20