四种自酸蚀粘结剂粘结老化玻璃纤维增强树脂的剪切粘结强度比较  

The influence of 7th self-etch adhesive resins on the shear bond strength with the aged glass-fiber reinforced composite resin

作　　者：陈造[1] 刘琦[2] 陈露[1] 吴补领[2] CHEN Zao;LIU Qi;CHEN Lu;WU Bu-ling(Zhongshan Hospital of Traditional Chinese Medicine,Zhongshan 528400,China)

机构地区：[1]中山市中医院口腔科,广东中山528400 [2]南方医科大学口腔医学院,广东广州510000

出　　处：《牙体牙髓牙周病学杂志》2018年第10期575-579,共5页Chinese Journal of Conservative Dentistry

摘　　要：目的:比较4种第七代自酸蚀粘结剂粘结老化后玻璃纤维增强树脂(GFRC)的剪切粘结强度(SBS)。方法:制作GFRC试件160个,随机分为实验组和对照组(n=80),每组再分为4个亚组(n=20)。实验组以5℃/55℃冷热循环方式进行老化,对照组则不进行老化处理。两大组的4个亚组分别使用AdperEasy One(AEO)、S^3BOND(S^3B)、Tetric N-Bond Self-Etch(TNB)、G-BOND(GB) 4种自酸蚀粘结剂,在GFRC表面粘结Z350复合树脂后,测量各组SBS;用扫描电镜(SEM)观察其断面形态,并对各组数据进行统计分析。结果:与对照组相应亚组相比,实验组AEO、S^3B亚组的SBS显著升高(P <0. 05),TNB亚组的SBS则无显著差异(P> 0. 05),GB亚组的SBS显著下降(P <0. 05);实验组中各亚组的SBS两两相比则无显著差异(P> 0. 05)。20倍SEM下,与对照组相应亚组相比,实验组AEO、S^3B亚组的Z350断面附着厚层玻璃纤维的样本数增多; GB亚组Z350断面附着厚薄相间/薄层玻璃纤维的样本数增多。1 200倍SEM下,实验组AEO、S^3B亚组断面纤维包埋面更密集,且呈横向的嵴状和凹槽断层状结构。结论:与TNB、GB相比,AEO和S^3B能显著提高老化后GFRC的SBS,是用4种第七代自酸蚀粘结剂粘结GFRC中较好的选择。s of Bis-GMA＋PMMA-base GFRC were randomly divided into 2 main groups, the samples in test groups were aged by thermocycling, in control groups remained fresh. The samples in each group were then divided into 4 subgroups and applied to the self-etch adhesives of AdperEasy One（AEO）, S^3BOND（S^3B）,Tetric N-Bond Self-Etch（TNB） and G-BOND（GB） respectively and bonded with composite resin Z350.Shear loading was performed until failure occurred. Data were analyzed. All debonding failure modes were categorized using a SEM. RESULTS： The SBS of AEO and S 3B in the test group, was significantly higher than that in the control groups（ P 〈0.05） except TNB group; But the SBS of GB was significantly lesser （ P 〈0.05）.However, no difference was found among the test subgroups（ P 〉0.05 ）.The interfaces of debonding specimens adjacent to composite resin showed mixed and cohesive failure observed under SEM. CONCLUSION： With significantly increasing the SBS, AEO and S^3B are recommended to repair the aged GFRC.

关 键 词：第七代自酸蚀粘结剂 玻璃纤维增强树脂 剪切粘结强度 扫描电子显微镜 

分 类 号：R783.1[医药卫生—口腔医学]