Kusumasari Citra, Margono Anggraini, Aditya Dimas-Raihan, Abdou Ahmed
Assistant Professor, Department of Conservative Dentistry, Faculty of Dentistry, Universitas Indonesia, Jakarta, Indonesia.
Associate Professor, Department of Conservative Dentistry, Faculty of Dentistry, Universitas Indonesia, Jakarta, Indonesia.
J Clin Exp Dent. 2022 Aug 1;14(8):e661-e668. doi: 10.4317/jced.59564. eCollection 2022 Aug.
Nowadays, the universal adhesive become more popular among clinicians due to its simple procedure. The application of universal adhesive on root canal dentin prior the self-adhesive resin cement may increase bond-strength between fiber post and dentin. The objective of this study was to evaluate the effect of different etching modes (etch-and-rinse and self-etch) to universal adhesives on push-out bond strength of fiber post.
Thirty extracted sound human lower premolars were randomly divided into three groups based on adhesives systems prior to fiber post cementation; two-step etch-and-rinse (group A, Adper Scotchbond), etch-and-rinse universal (group B, Prime & Bond Universal), and self-etch universal (group C, Prime & Bond Universal). After adhesive application, self-adhesive resin cement was filled to the prepared root canal (Smart CEM2, Dentsply) for fiber post cementation. The adhesion between the fiber post and root canal walls was investigated using push-out test after 24 h water storage at 37◦C and the modes of failure were determined under SEM. Data were analyzed using two-way ANOVA test and the Bonferroni test was used to compare values among the three adhesives groups, followed by Tukey HSD for multiple comparisons. Furthermore, Weibull parameters were calculated for tested groups.
Universal adhesive with self-etch mode significantly improved bond-strength compared to the two-step etch-and-rinse group (<0.05). The coronal part has higher bond strength than the apical section (<0.05). However, the bond-strength in two-step etch-and-rinse and etch-and-rinse universal was not significantly different. Self-etch mode showed higher bond strength compared to etch-and-rinse universal adhesive in the apical root section (<0.05). SEM revealed that all tested groups predominantly had an adhesive failure (>0.05).
Self-etch mode in universal adhesive system were effectively improved the push-out bond strength of fiber post to root canal dentin, especially in apical root section. Push-out bond-strength, self-adhesive resin cement, self-etch adhesive, total-etch.
如今，通用型粘结剂因其操作简单在临床医生中更受欢迎。在使用自粘结树脂水门汀之前，将通用型粘结剂应用于根管牙本质上可能会增加纤维桩与牙本质之间的粘结强度。本研究的目的是评估不同蚀刻模式（酸蚀冲洗和自酸蚀）对通用型粘结剂与纤维桩推出粘结强度的影响。
30颗拔除的健康人下颌前磨牙在纤维桩粘结前根据粘结剂系统随机分为三组；两步酸蚀冲洗（A组，Adper Scotchbond）、酸蚀冲洗通用型（B组，Prime & Bond Universal）和自酸蚀通用型（C组，Prime & Bond Universal）。应用粘结剂后，将自粘结树脂水门汀（Smart CEM2，登士柏）充填到预备好的根管中进行纤维桩粘结。在37℃下储存24小时后，通过推出试验研究纤维桩与根管壁之间的粘结情况，并在扫描电子显微镜下确定失败模式。数据采用双向方差分析进行分析，使用Bonferroni检验比较三组粘结剂之间的值，随后使用Tukey HSD进行多重比较。此外，计算测试组的威布尔参数。
与两步酸蚀冲洗组相比，自酸蚀模式的通用型粘结剂显著提高了粘结强度（<0.05）。冠部的粘结强度高于根尖部（<0.05）。然而，两步酸蚀冲洗和酸蚀冲洗通用型之间的粘结强度没有显著差异。在根尖部，自酸蚀模式显示出比酸蚀冲洗通用型粘结剂更高的粘结强度（<0.05）。扫描电子显微镜显示，所有测试组主要为粘结失败（>0.05）。
通用型粘结剂系统中的自酸蚀模式有效提高了纤维桩与根管牙本质的推出粘结强度，尤其是在根尖部。推出粘结强度、自粘结树脂水门汀、自酸蚀粘结剂、全酸蚀。
