混合陶瓷表面的不同处理对粘结强度影响的实验研究

发布时间：2018-05-13 23:15

  本文选题：混合陶瓷 + 粘接　； 参考：《南昌大学》2017年硕士论文

【摘要】：目的通过对混合陶瓷表面不同的处理方法,研究其对临床上常用的粘接剂的粘接强度的影响。方法本实验选用Vita Enamic混合瓷块,用CAD/CAM方法切割成10×10×3mm试件78块,根据表面处理方法,随机分为6组,每组12个试件:A组:对照组;B组:喷砂处理;C组:酸蚀组;D组:硅烷处理组;E组:酸蚀+硅烷处理;F组:喷砂+硅烷处理。每一组12个试件又随机分为两小组,每组6个试件,其中第1组用于树脂粘接剂组,第2小组用于玻璃离子组。将单面透明胶带打一半径2mm的圆孔,贴在试件的处理面上。然后分别用Embrace TM双固化树脂粘接剂和Fuji-1玻璃离子粘固剂,在每个试件处理表面,制作粘接面半径2mm,高4mm的圆柱体,静止24h后用电子万能力学测试机(Instron2343型,USA)测试每个试件的粘接强度。结果在测试刀头进率为0.5mm/min的条件下,各组的粘接强度(MPa)分别为Embrace TM双固化树脂粘接剂组:A1组:6.2199±0.9662、B1组:8.3043±1.2074、C1组:7.2266±1.1112、D1组:15.0703±1.1033、E1组:9.6446±1.1725、F1组:13.1765±2.312;Fuji-Ⅰ玻璃离子粘固剂组:A2组:2.45±0.30、B2组:3.40±0.57、C2组:4.99±0.42、D2组:2.19±0.31、E2组:3.91±0.39、F2组:2.52±0.98。结论酸蚀、喷砂、涂硅烷偶联剂,单独或联合对混合陶瓷表面处理,均可提高其与树脂粘接剂的粘接强度,其中硅烷偶联剂增强树脂粘接强度最好,喷砂效果优于酸蚀;酸蚀和喷砂处理可提高其与玻璃离子粘接剂粘接强度,其中酸蚀组效果优于喷砂处理组,涂硅烷偶联剂非但不提高玻璃离子粘接剂的粘接强度,反而损害了二者之间的粘接强度。
[Abstract]:Objective to study the effect of mixed ceramic surface treatment on the bonding strength of common adhesives. Methods 78 Vita Enamic mixed porcelain pieces were cut into 10 脳 10 脳 3mm samples by CAD/CAM. According to the surface treatment method, they were randomly divided into 6 groups. There were 12 samples in each group: control group B group: sand blasting group C group: acid etching group D group: silane treatment group E group: acid etching silane treatment group F group: sand blasting silane treatment group. Each group of 12 specimens were randomly divided into two groups, each group of 6 specimens, the first group for resin adhesive group, group 2 for glass ion group. One-sided transparent tape is taped into a circular hole with radius of 2mm and affixed to the treatment surface of the specimen. Then using Embrace TM double curing resin binder and Fuji-1 glass ion binder respectively, the cylinder with 2 mm radius of bonding surface and high 4mm was made on the surface of each specimen. The bonding strength of each specimen was measured by electronic universal mechanical tester instrument 2343 after 24 hours of rest. 缁撴灉鍦ㄦ祴璇曞垁澶磋繘鐜囦负0.5mm/min鐨勬潯浠朵笅,鍚勭粍鐨勭矘鎺ュ己搴，

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