Do Amaral Guilherme, Olivieri Karina Andrea Novaes, Vitti Rafael Pino, Bueno Clovis Stephano Pereira, Brandt William Cunha, Miranda Milton Edson
Faculdade São Leopoldo Mandic.
Universidade Santo Amaro.
J Clin Exp Dent. 2025 Apr 1;17(4):e440-e446. doi: 10.4317/jced.62131. eCollection 2025 Apr.
The objective of this work was to evaluate the influence of the Scotchbond MP and Clearfil SE adhesive systems on the bond strength in the push out test between the fiberglass post and the root canal.
This study involved 20 human canine teeth extracted over a 12-month period. For inclusion in the sample, upper canine teeth with fully formed apices and curvatures less than 45° were considered. Teeth containing a calcified canal, with radiographically visible double curvature or that had undergone previous endodontic treatment were excluded from the sample. After selection, surface prophylaxis was performed using an ultrasound insert, followed by smoothing with a Gracey curette. Endodontic treatments were performed by a calibrated operator, following a pre-established protocol. Next, preparation of the root canal began to receive the Whitepost DC number 2 fiberglass post by removing 2/3 of this space. Next, the posts were prepared to be cemented, they were cleaned with 70% alcohol and conditioned with 37% phosphoric acid before receiving two layers of silane. From that moment on, the elements were randomly divided into two groups, according to the adhesive system, with RelyX ARC cement being used: Group SCB: Scotchbond MP and Group CFL: Clearfil SE. After cementing the fiber posts, the test specimens were prepared for mechanical testing using the push out test on the Universal Testing Machine (EMIC). Multiple comparisons were performed using the Tukey test. Statistical calculations were conducted adopting a significance level of 5%.
The two-factor analysis of variance demonstrated that there was no statistically significant interaction between the factors studied, however the use of the SCB Group adhesive system produced higher RU values.
It was concluded that greater bond strength was obtained between resin cement and root dentin when ScotchBond adhesive was used and there were no differences in RU in the different root portions. Fiberglass posts, Adhesive systems, Tensile strength, Cementation, Dental prosthesis.
本研究的目的是评估Scotchbond MP和Clearfil SE粘结系统对玻璃纤维桩与根管之间推出试验粘结强度的影响。
本研究纳入了在12个月期间拔除的20颗人犬齿。纳入样本的标准为上颌犬齿，根尖完全形成且弯曲度小于45°。样本排除含有钙化根管、影像学可见双弯曲或曾接受过根管治疗的牙齿。选牙后，使用超声洁治头进行表面清洁，然后用格瑞斯刮匙进行平滑处理。由经过校准的操作人员按照既定方案进行根管治疗。接下来，开始根管预备，去除2/3的根管空间以容纳Whitepost DC 2号玻璃纤维桩。然后，对桩进行粘结前预备，用70%酒精清洁，并用37%磷酸酸蚀处理，之后涂两层硅烷。从那时起，根据粘结系统将样本随机分为两组，均使用RelyX ARC粘结剂：SCB组：Scotchbond MP；CFL组：Clearfil SE。粘结纤维桩后，制备测试样本，在万能材料试验机（EMIC）上进行推出试验以进行力学测试。使用Tukey检验进行多重比较。采用5%的显著性水平进行统计计算。
双因素方差分析表明，所研究的因素之间不存在统计学上的显著交互作用，然而，使用SCB组粘结系统产生了更高的RU值。
得出的结论是，使用ScotchBond粘结剂时，树脂粘结剂与牙根牙本质之间获得了更高的粘结强度，并且不同牙根部位的RU值没有差异。玻璃纤维桩、粘结系统、拉伸强度、粘结、牙修复体。
