两种嵌体加工技术对树脂嵌体机械性能的影响(英文)

Two inlay processing techniques effects on the mechanical function of resin inlays

背景:复合树脂作为一种既美观又实用的嵌体修复材料,其机械性能的改进成为研发的热点。目的:用CERAMAGE与TESCERA两种嵌体固化机制作树脂试件,比较两种加工技术对嵌体材料机械性能的影响。方法:选取两种机器的配套树脂,与两种机器进行交叉配对,分成4组:A、B两组用Tescera树脂分别与TESCERA嵌体机和CERAMAGE嵌体机配对;C、D两组用Ceramage树脂分别与CERAMAGE嵌体机和TESCERA嵌体机配对,分别制作标准试件,测试试件的表面硬度,抗压强度和挠曲强度。结果与结论:在表面硬度,抗压强度上,A组高于其他3组;B组高于C、D两组(P<0.05)。在挠曲强度上,C、D两组高于A、B两组(P<0.05),C、D组间及A、B组间差异无显著性意义。结果表明,用TESCERA嵌体机加工其配套树脂,所得试件的机械性能最佳。

BACKGROUND： Composite resin functions as a practical resin restoration material with beautiful outlook, modifying its mechanical properties has become a hot spot in research. OBJECTIVE： To prepare resin specimens with two kinds of inlay curing machines： CERAMAGE and TESCERA, and to compare the mechanical properties of these specimens. METHODS： The resin specimens supporting two machines were cross-matched with these machines and then divided into four groups： Group A was Tescrea resin prepared with TESCERA machine; group B was Tescrea resin prepared with CERAMAGE machine; group C was Ceramage resin prepared with CERAMAGE machine; group D was Ceramage resin prepared with TESCERA machine. The standard specimens were determined for compressive strength, hardness and flexural strength. RESULTS AND CONCLUSION： The compressive strength and hardness in group A were higher than those in other three groups, and group B exhibited higher compressive strength and hardness than groups C and D （P 0.05）. The flexural strength in groups C and D was higher than that in groups A and B （P 0.05）, there was no significant difference between groups C and D, neither betweens group A and B. The experimental findings indicate that TESCERA inlay machine and Tescera resin achieve the optimal mechanical properties.