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首页> 美国卫生研究院文献>Journal of Applied Oral Science >INFLUENCE OF DIFFERENT ADHESIVE SYSTEMS ON THE PULL-OUT BOND STRENGTH OF GLASS FIBER POSTS
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INFLUENCE OF DIFFERENT ADHESIVE SYSTEMS ON THE PULL-OUT BOND STRENGTH OF GLASS FIBER POSTS

机译：不同的胶粘剂体系对玻璃纤维桩抗拉强度的影响

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This in vitro study evaluated the tensile bond strength of glass fiber posts (Reforpost – Angelus-Brazil) cemented to root dentin with a resin cement (RelyX ARC – 3M/ESPE) associated with two different adhesive systems (Adper Single Bond - 3M/ESPE and Adper Scotchbond Multi Purpose (MP) Plus – 3M/ESPE), using the pull-out test. Twenty single-rooted human teeth with standardized root canals were randomly assigned to 2 groups (n=10): G1- etching with 37% phosphoric acid gel (3M/ESPE) + Adper Single Bond + #1 post (Reforpost – Angelus) + four #1 accessory posts (Reforpin – Angelus) + resin cement; G2- etching with 37% phosphoric acid gel + Adper Scotchbond MP Plus + #1 post + four #1 accessory posts + resin cement. The specimens were stored in distilled water at 37°C for 7 days and submitted to the pull-out test in a universal testing machine (EMIC) at a crosshead speed of 0.5 mm/min. The mean values of bond strength (kgf) and standard deviation were: G1- 29.163 ± 7.123; G2- 37.752 ±13.054. Statistical analysis (Student's t-test; α=0.05 showed no statistically significant difference (p<0.05) between the groups. Adhesive bonding failures between resin cement and root canal dentin surface were observed in both groups, with non-polymerized resin cement in the apical portion of the post space when Single Bond was used (G1). The type of adhesive system employed on the fiber post cementation did not influence the pull-out bond strength.
机译：这项体外研究评估了玻璃纤维桩（Reforpost – Angelus-Brazil）与树脂水泥（RelyX ARC – 3M / ESPE）与两种不同的胶粘剂体系（Adper Single Bond – 3M / ESPE）结合的玻璃纤维桩（Reforpost – Angelus-Brazil）的拉伸粘结强度以及使用拉拔测试的Adper Scotchbond多功能（MP）Plus – 3M / ESPE。将二十根具有标准化根管的单根人牙随机分为2组（n = 10）：G1-用37％磷酸凝胶（3M / ESPE）蚀刻+ Adper单键+＃1柱位（Reforpost – Angelus）+四个＃1辅助杆（Reforpin – Angelus）+树脂胶；使用37％磷酸凝胶+ Adper Scotchbond MP Plus进行G2-蚀刻+ 1号柱+ 4个1号附件柱+树脂胶。将样品在37°C的蒸馏水中保存7天，然后以0.5 mm / min的十字头速度在通用测试仪（EMIC）中进行拉拔测试。粘结强度（kgf）和标准偏差的平均值为：G1-29.163±7.123；和G2-37.752±13.054。统计分析（Student's t检验；α= 0.05）表明两组之间无统计学差异（p <0.05），两组均观察到树脂胶与根管牙本质表面之间的粘合失败，而未聚合当使用单键（G1）时，柱空间的顶端部分。在纤维柱后固结中使用的粘合剂体系的类型不影响拉出粘合强度。

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