氧化锌丁香油粘固剂对二种牙本质粘结剂粘结效果的影响  

Influence of eugenol-containing temporary cement on efficacy of dentin-bonding systems

作　　者：张丽君[1] 马楚凡[1] 王忠义[1] 

机构地区：[1]第四军医大学口腔医学院修复科,西安710032

出　　处：《中华口腔医学杂志》2004年第3期230-232,共3页Chinese Journal of Stomatology

摘　　要：目的　研究含有丁香油的暂时粘固剂对二种新型牙本质粘结剂与牙本质粘结效果的影响。方法　选取新鲜拔除、无龋坏的牛中切牙 32颗 ,随机分为 4组。流水冲洗下磨除牙釉质 ,暴露牙本质 ,依次用 32 0号、4 0 0号、6 0 0号水砂纸打磨牙本质粘结表面。环氧树脂包埋后将氧化锌丁香油粘固剂(ZOE)均匀涂抹于 3组、4组试件的牙本质表面 ,1组、2组为对照。所有的试件均存储于 37℃蒸馏水中。 1周后 ,机械去除试件表面的氧化锌丁香油粘固剂 ,用流水反复冲洗。 1组和 3组选用Prime&BondNT粘结剂处理牙本质表面 ,2组和 4组选用GLUMA粘结剂处理牙本质表面 ,并在其上充填、固化直径 6mm、高 2mm的复合树脂。制备好的试件在 37℃蒸馏水中放置 2 4h后 ,在SHIMADZU材料试验机上测试剪切粘结强度 ,加载速度为 0 5mm/min。对结果数据作统计分析 ,剪切后的试件行扫描电镜观察和表面能谱分析。结果　各组的平均剪切粘结强度为 :1组 (Prime&BondNT) 9 5 7MPa ,3组 (Prime&BondNT +ZOE) 10 72MPa,2组 (GLUMA) 16 89MPa,4组 (GLUMA +ZOE) 16 78MPa。方差分析显示 ,使用不同的牙本质粘结剂对剪切粘结强度影响有显著性 ,而是否使用氧化锌丁香油粘固剂对剪切粘结强度无显著影响。结论　使用氧化锌丁香油粘固剂预处理牙本质表面 ,Objective This study investigated the influence of eugenol-containing temporary cement on the efficacy of two relatively new dentin-bonding systems.Methods Thirty-two freshly extracted bovine central incisors were randomly divided into four groups. Dentin was exposed and polished with 320 #,400 #, and 600 # sand papers. After embedded,Group 3 and 4 specimens were covered with ZOE.Specimens in Group l and 2 were served as control. All specimens were stored for l week in distilled water at 37 ℃. Then, the ZOE was mechanically removed. The dentin surfaces of Group 1 and 3 were treated with Prime & Bond NT bonding system and the dentin surfaces of Group 2 and 4 were treated with GLUMA adhesive system according to manufacturer's instructions. Thereafter composite resin columns (6mm diameter,2 mm high) were applied. After specimens stored in distilled water at 37 ℃ for 24 hours,the shear bond testing was carried out using a SHIMADZU universal testing machine with a cross-head speed of 0.5 mm/minute. The mode of failure was examined using SEM. The data were analyzed using ANOVA test at a significance level of 0.05. Results The medians of shear bond strength for each group were as follows: Group l (Prime & Bond NT) 9.57 MPa,Group 3 (Prime & Bond NT +ZOE) 10.72 MPa,Group 2 (GLUMA) 16.89 MPa,Group 4 (GLUMA+ZOE) 16.78 MPa. Group l and 3 had significantly lower bonding strength than did Groups 2 and 4. But no significant difference was found between the control groups and the groups treated with ZOE temporary cement. Conclusion Pretreatment of the dentin with ZOE temporary cement has no adverse influence on the efficacy of two relatively new dentin-bonding systems.

关 键 词：氧化锌丁香油粘固剂 牙本质粘结剂 粘结效果 环氧树脂 

分 类 号：R783[医药卫生—口腔医学]