两种光固化树脂材料机械性能的对比研究  

Comparison of Mechanical Properties of Two Kinds of Light-cure Composite Resins.

作　　者：迟惠熔[1] 陈力[1] 刘静[1] 马肃[2] 

机构地区：[1]哈尔滨医科大学口腔医学院牙体牙髓病科,黑龙江哈尔滨150001 [2]哈尔滨医科大学口腔医学院牙周病科,黑龙江哈尔滨150001

出　　处：《口腔医学研究》2011年第1期26-28,共3页Journal of Oral Science Research

摘　　要：目的:探讨光固化流体树脂直接用于恒牙早期或可疑窝沟龋微创治疗的可行性。方法:使用万能材料实验机测定两种树脂的机械性能,用t检验方法进行统计学分析。结果:光固化流体树脂的压缩强度和挠曲强度分别为(284.41±24.33)MPa和(104.28±15.31)MPa,与后牙树脂的(320.34±29.59)MPa和(109.44±14.56)MPa无显著性差别,两种材料的弹性模量分别为(6.00±0.567)GPa和(12.10±0.884)GPa,光固化流体树脂小于后牙树脂(P<0.05)。结论:光固化流体树脂是一种值得临床推广的微创充填材料。Objective： To explore the feasibility of light-cure flowable resin in minimal invasive treatment of permanent teeth with early or suspicious pit-and-fissure caries.Methods： We tested the mechanical properties of two kinds of materials with a universal material testing machine.The results were analyzed by t-test.Results： The compressive strength and flexural strength of light-cure flowable resin were（284.41±24.33）MPa and（104.28±15.31）MPa respectively,and the measurements for light-cure posterior composite resin were（320.34±29.59）MPa and（109.44±14.56）MPa.There were no statistically significant differences.The elastic modulus of light-cure flowable resin and light-cure posterior composite resin were（6.00±0.567）GPa and（12.10±0.884）GPa respectively.The light-cure flowable resin was lower than light-cure posterior composite resin（P0.05）.Conclusion： The light-cure flowable resin is worth to apply clinically.

关 键 词：光固化流体树脂 后牙复合树脂 机械性能 微创牙科学 

分 类 号：R783.1[医药卫生—口腔医学]