表面改性氧化锆无机填料对齿科自酸蚀粘结剂性能的影响

硅酸盐通报 ›› 2021, Vol. 40 ›› Issue (5): 1735-1742.

所属专题：新型功能材料

表面改性氧化锆无机填料对齿科自酸蚀粘结剂性能的影响

涂宝丽¹, 张青红¹, 王海风¹, 刘梅²

1.东华大学材料科学与工程学院,上海 201620;
2.南京医科大学,江苏省口腔疾病重点实验室,南京 210029

收稿日期:2020-12-25 修回日期:2021-03-09 出版日期:2021-05-15 发布日期:2021-06-07
通讯作者: 张青红,研究员。E-mail:zhangqh@dhu.edu.cn
王海风,副研究员。E-mail:whf2008@dhu.edu.cn
作者简介:涂宝丽(1996—),女,硕士研究生。主要从事齿科粘结剂方面的研究。E-mail:1772579956@qq.com
基金资助:
国家重点研发计划(2016YFA0201702,2016YFA0201700);国家自然科学基金(81701025)

Effect of Surface Modified Zirconia Inorganic Filler on Properties of Dental Self-Etching Adhesive

TU Baoli¹, ZHANG Qinghong¹, WANG Haifeng¹, LIU Mei²

1. College of Materials Science and Engineering, Donghua University, Shanghai 201620, China;
2. Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing 210029, China

Received:2020-12-25 Revised:2021-03-09 Online:2021-05-15 Published:2021-06-07

摘要/Abstract

摘要： 用溶胶-凝胶法对氧化锆粉体表面包覆氧化硅,并用硅烷偶联剂γ-甲基丙烯酰氧丙基三甲氧基硅烷(γ-MPS)进行表面修饰,制备了齿科粘结剂用无机填料。以双酚A-甲基丙烯酸缩水甘油酯(Bis-GMA)单体、二甲基丙烯酸三乙二醇酯(TEGDMA)稀释剂、甲基丙烯酸-2-羟乙酯(HEMA)两性单体、10-(2-甲基丙烯酰氧基)磷酸单癸酯(10-MDP)酸蚀剂为主要成分,将改性过的氧化锆按照质量分数为1%~10%的比例进行填充,测试了自酸蚀粘结剂的粘结强度等性能。结果表明,当填料质量分数为2%时明显提高粘结剂的粘结性能,其粘结强度为(31.63±1.53) MPa;而当ZrO₂填充的质量分数增加到5%后,粘结强度开始下降。扫描电镜对粘结断面进行分析,发现随着ZrO₂填充量的提高,自酸蚀粘结剂对牙本质小管和复合树脂的渗入作用减弱,导致粘结性能下降。超景深显微镜对样本切片观察显示,粘结剂的存在可以明显缩小牙齿与复合树脂之间的缝隙。

关键词: 氧化锆, 氧化硅, 自酸蚀粘结剂, 粘结强度, 牙本质小管, 边缘微渗漏

Abstract: By silica coating the surface of zirconia powder with sol-gel method and subsequently modifying the surface with silane coupling agent γ-methacryloxypropyltrimethoxysilane (γ-MPS), an inorganic filler for dental adhesive was prepared. Using bisphenol A-glycidyl methacrylate (Bis-GMA) monomer, triethylene glycol dimethacrylate (TEGDMA) diluent, 2-hydroxyethyl methacrylate (HEMA) amphoteric monomer, and 10-(2-methacryloyloxy)monodecyl phosphate (10-MDP) etching agent as main components, and the modified zirconium oxide is filled with a mass fraction of 1% to 10%, the bonding strength and other properties of self-etching adhesive were tested. The results show that the mechanical properties of the adhesive are significantly improved when the filler mass fraction is 2%, and the bonding strength is (31.63±1.53) MPa. However, when the mass fraction of ZrO₂ increases to 5%, the bond strength begins to decrease. Scanning electron microscope analysis of the bonding section shows that with the increase of ZrO₂ filling amount, the infiltration effect of self-etching adhesive on dentin tubules and composite resin is somewhat weakened, resulting in the decrease of bonding performance. The sample sections under the ultra-depth-of-field microscope shows that the presence of adhesive significantly reduces the gap between teeth and composite resin.

Key words: zirconia, silica, self-etching adhesive, bonding strength, dentin tubule, marginal microleakage

中图分类号:

TQ437

涂宝丽, 张青红, 王海风, 刘梅. 表面改性氧化锆无机填料对齿科自酸蚀粘结剂性能的影响[J]. 硅酸盐通报, 2021, 40(5): 1735-1742.

TU Baoli, ZHANG Qinghong, WANG Haifeng, LIU Mei. Effect of Surface Modified Zirconia Inorganic Filler on Properties of Dental Self-Etching Adhesive[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(5): 1735-1742.

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表面改性氧化锆无机填料对齿科自酸蚀粘结剂性能的影响

Effect of Surface Modified Zirconia Inorganic Filler on Properties of Dental Self-Etching Adhesive

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