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首页> 外文期刊>International Journal of Adhesion & Adhesives >The influence of endodontic sealer dentine penetration on fibreglass post retention
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The influence of endodontic sealer dentine penetration on fibreglass post retention

机译：牙髓牙盖牙本质渗透对玻璃纤维保留的影响

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摘要

This study aimed to evaluate the influence of endodontic sealer inside dentinal tubules on the retention of fibreglass posts. One hundred eighty extracted teeth were instrumented with rotary instruments and divided into two groups (n = 90) according to their filling technique: (LC) lateral condensation and (CT) controlled technique, and subdivided into three subgroups according to the endodontic sealer used: (A) epoxy resin sealer, (B) zinc-oxide and eugenol sealer, and (C) bioceramic endodontic sealer. After root preparation, each subgroup received a fibreglass posts cemented with (1) adhesive resin cement, (2) self-adhesive resin cement, and (3) glass ionomer cement. After stored for 15 days at 37 degrees C and 100% humidity, the teeth were sectioned transversely into 1-mm thick slices and subjected to laser confocal scanning microscopy and push-out test. The failure mode was analyzed by stereo microscope, and scanning electron microscopy images of representative fractures were made. Although there were no significant differences in the dislocation resistance among the filling techniques (p 0.05), the type of sealer used affected bond strengths on the cervical and middle thirds. Fibreglass posts cemented with glass ionomer cement presented higher values for the push-out test than those cemented with resin cements (p 0.05). Mix failure modes were predominant and occurred in all experimental groups. The use of bioceramic endodontic sealer was able to reduce the bond strength, mainly when the fibreglass posts was cemented by resin cement.
机译：本研究旨在评估牙齿封闭剂内牙本质密封剂对玻璃纤维柱保持的影响。用旋转仪器仪器用旋转仪器仪表，并根据其填充技术分为两组（n = 90）：（LC）横向缩合和（CT）受控技术，并根据所用的牙髓密封剂细分为三个亚组： （a）环氧树脂密封剂，（b）氧化锌和丁香酚封口剂，和（c）生物陶瓷牙髓封口剂。在根制剂之后，每个亚组接收玻璃纤维柱用（1）粘合树脂水泥，（2）自粘树脂水泥，和（3）玻璃离聚物水泥。在37摄氏度和100％湿度下储存15天后，将牙齿横向切成1mm厚的切片并进行激光共焦扫描显微镜和推出试验。通过立体显微镜分析故障模式，并进行扫描电子显微镜图像的代表性裂缝。尽管填充技术之间的错位抗性没有显着差异（P> 0.05），但是密封剂的类型使用宫颈和中间三分之一的受影响的粘合强度。玻璃纤维柱用玻璃离聚物水泥施加较高的推出试验值，而不是用树脂水泥粘合的值（P <0.05）。混合衰竭模式是主要的并且在所有实验组中发生。使用生物陶瓷牙髓封口剂能够降低粘合强度，主要是当玻璃纤维柱通过树脂水泥粘连时。

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