介孔二氧化钛复合材料封闭离体牙本质小管的效果观察  

Effect of Mesoporous Titanium Dioxide Composite on Sealing Isolated Dentinal Tubules

作　　者：黄梅娥 黄恩琪 李梦 黄珂 尹路 HUANG Meie;HUANG Enqi;LI Meng;HUANG Ke;YIN Lu(Department of Prosthetics,Stomatological Hospital of Xiamen Medical Colleg,Xiamen 361008,Fujian,China;Engineering Research Center of Fujian University for Stomatological Biomaterials,Xiamen Medical College,Xiamen 361023,Fujian,China;Xiamen Medical College,Xiamen 361023,Fujian,China;Xiamen Key Laboratory of Oral Disease Diagnosis and Treatment,Xiamen 361003,Fujian,China)

机构地区：[1]厦门医学院附属口腔医院修复一科,福建厦门361008 [2]口腔生物材料福建省高校工程研究中心,福建厦门361023 [3]厦门医学院,福建厦门361023 [4]厦门市口腔疾病诊疗重点实验室,福建厦门361003

出　　处：《中国美容医学》2023年第8期21-24,共4页Chinese Journal of Aesthetic Medicine

基　　金：口腔生物材料福建省高校工程研究中心(厦门医学院)开放课题(编号:XMMC-KQ202003);厦门医学院大学生创新创业训练计划项目(编号:X202112631048)。

摘　　要：目的:通过制备介孔二氧化钛复合羟基磷灰石来封闭离体牙本质小管评估其脱敏效果。方法:制备含介孔二氧化钛的羟基磷灰石复合材料与纯羟基磷灰石以及常用的齿科脱敏剂应用于离体牙本质表面,观察牙本质小管的封闭情况和封闭材料渗入小管内的距离来评估封闭效果,比表面积测试等方法对其组成及性状进行分析,讨论其对离体牙本质体外再矿化的影响和封闭机制。结果:介孔二氧化钛复合羟基磷灰石可以很好地封闭离体牙本质表面的微孔,复合物具有良好的孔隙率及较高的表面能。结论:介孔二氧化钛复合羟基磷灰石可以尝试作为牙齿修复后的脱敏材料。Objective To evaluate the desensitization effect of mesoporous titanium dioxide composite hydroxyapatite on sealing extracted dentinal tubules.Methods Mesoporous titanium dioxide composite hydroxyapatite,pure hydroxyapatite and commonly used dental desensitizers were applied to the surface of extracted dentin to observe the sealing of dentinal tubules and the distance that the sealing material penetrated into the tubules.The specific surface area test and other methods were used to analyze its composition and properties,and to discuss its effect on the remineralization of extracted dentin in vitro and the sealing mechanism.Results The mesoporous titanium dioxide composite hydroxyapatite can well seal the micropore on the surface of dentin in vitro,and the composite has good porosity and high surface energy.Conclusion Mesoporous titanium dioxide composite hydroxyapatite can be tried as a desensitizing material after dental restoration.

关 键 词：介孔 二氧化钛 羟基磷灰石 牙本质敏感 脱敏 比表面积 

分 类 号：R781.05[医药卫生—口腔医学]