一种新型硅烷醇酯基修复系统的物理性能。
Physical properties of a new silorane-based restorative system.
机构信息
Advanced Education in General Dentistry Residency, Wilford Hall Medical Center, Lackland AFB, TX 78236, USA.
出版信息
Dent Mater. 2010 Apr;26(4):337-44. doi: 10.1016/j.dental.2009.12.004. Epub 2010 Jan 6.
OBJECTIVES
To distinguish the physical properties of a new silorane-based restorative material in comparison to five methacrylate-based restorative materials--a compomer, giomer, nanocomposite, hybrid and micro-hybrid.
METHODS
The following properties were examined per restorative material: compressive strength, diametral tensile strength, flexural strength/modulus, fracture toughness, microhardness, and polymerization shrinkage. The mean and standard deviation were determined per group. A one-way ANOVA/Tukey was performed per property (alpha=0.05).
RESULTS
Significant differences were found between groups per property (p<0.001).
CONCLUSIONS
Compared to the methacrylate-based restorative materials, the new silorane-based material had the lowest polymerization shrinkage, but an overall mixed mechanical performance. The silorane-based material had relatively higher flexural strength/modulus, fracture toughness, but relatively lower compressive strength and microhardness than the methacrylate-based restorative materials.
目的
将一种新型硅烷基修复材料的物理性能与五种甲基丙烯酸酯基修复材料（复合体、玻璃离子、纳米复合树脂、混合树脂和微混合树脂）进行比较。
方法
对每种修复材料进行以下性能测试：抗压强度、直径拉伸强度、弯曲强度/模量、断裂韧性、显微硬度和聚合收缩率。每个组的平均值和标准差。对每个性能进行单因素方差分析/Tukey 检验（α=0.05）。
结果
各组间各性能均存在显著差异（p<0.001）。
结论
与甲基丙烯酸酯基修复材料相比，新型硅烷基材料聚合收缩率最低，但整体力学性能混合。硅烷基材料的弯曲强度/模量、断裂韧性相对较高，但抗压强度和显微硬度相对较低。
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