HAP-Ag对光固化复合树脂抑菌性及力学性能的影响  

The effects of Hydroxyapatite-Ag(HAP-Ag) on composite resin about the bacteriostasis and mechanical properties

作　　者：董波[1] 侯丽珠 郭方兴 冯瑶[1] 谷巍 DONG Bo;HOU Li zhu;GUO Fang xing;FENG Yao;GU Wei(College of Oral Medicine in Jiamusi University,Jiamusi 154002,China;Department of Stomatology,Affiliated Hospital of Chengde Medical College,Chengde 067000,China)

机构地区：[1]佳木斯大学口腔医学院,黑龙江佳木斯154002 [2]承德医学院附属医院口腔科,河北承德067000

出　　处：《黑龙江医药科学》2018年第5期56-57,55,共3页Heilongjiang Medicine and Pharmacy

摘　　要：目的:研究载银羟基磷灰石(HAP-Ag)对复合树脂抑菌性及力学性能的影响。方法:将经过硅烷偶联剂KH-570处理过的载银羟基磷灰石,按照质量比为0%、1%、3%、5%、7%通过超声和机械的搅拌后添加到复合树脂中,快速填入磨具中固化。研究试件的力学性能及其对变形链球菌的抑菌效果。结果:随着HAP-Ag含量的增加,改性后的光固化复合树脂对变形链球菌的抑菌效果增加,均较空白组有显著差异(P <0. 05);随着HAP-Ag含量的增加,改性后的临床光固化树脂的显微硬度和弯曲强度先增加后减小,其中5%实验组达最大值,1%实验组与空白组相比,无显著差异(P> 0. 05),3%,7%实验组与空白组相比有显著差异(P <0. 05)。结论:添加HAP-Ag的光固化复合树脂具有良好的抑菌性,添加含量5%的实验组的弯曲强度和显微硬度最高。Objective： To explore the effects of the effects of hydroxyapatite-Ag （HAP - Ag） on the antibacterial properties and mechanical properties of the composite resin. Methods： Hydroxyapatite-Ag treated with silane coupling agent kh-570 was added to the composite resin through ultrasonic and mechanical stirring at a mass ratio of 0%, 1%, 3%, 5% and 7%, and then quickly filled into the tool for curing. The effect of mechanical properties of the specimens and its bacteriostasis effect on the streptococcus mutans were studied. Results： With the increasing of HAP - Ag content, the bacteriostasis of modification of light-cured composite resin on the streptococcus mutans increased significantly, compared with the blank group （P〈0.05）. With the increasing of HAP - Ag content, the microhardness and bending strength of modified clinical photo-curing resin increased first and then decreased, among which 5% of the experimental group reached the maximum value, while 1% of the experimental group showed no significant difference compared with the blank group （P〉0.05）. There were significant differences among 3% of the experimental group and 7% blank group （P〈0.05）. Conclusion： Adding HAP - Ag light-cured composite resin has good antibacterial property, and 5% experimental group has the highest bending strength and microhardness.

关 键 词：载银羟基磷灰石 复合树脂 抑菌性 力学性能 

分 类 号：R783.1[医药卫生—口腔医学]