Erdiani Anita, Meidyawati Ratna, Wisnu Putranto Aditya, Yudha Dicky
Conservative Dentistry Residency Program, Faculty of Dentistry, Universitas Indonesia, Indonesia.
Department of Conservative Dentistry, Faculty of Dentistry, Universitas Indonesia, Indonesia.
Saudi Dent J. 2022 Jan;34(1):45-50. doi: 10.1016/j.sdentj.2021.10.003. Epub 2021 Oct 26.
A combination of self-etch and additional etch techniques as pre-cementation procedures for fiber post restoration was reported able to increase the bonding of adhesive material. This research aimed to determine the effects of different etching techniques on resin cement penetration into dentinal tubules.
Thirty-two endodontic treated premolars were prepared for 10 mm fiber posts and were divided into two groups (n = 16). Group one was treated with self-etch only, and the second was treated with a combination of self-etch and additional etching. The fiber posts were cemented using fluorescent rhodamine B 0.1%-colored resin cement. The samples were cut to a 2 mm thickness in the middle third of the root and were evaluated with confocal laser scanning microscopy (CLSM). Statistical analysis measurements were analyzed by an independent -test and Pearson correlation test.
There were statistically different in densities hybrid layer and resin tag penetration lengths. Statistically strong linear positive correlations between the hybrid layer density and resin tag penetration length in both groups were also observed. Hybrid layer density (9.68 μm), resin tag penetration depth (32.51 μm) in the self-etch group with additional etching were higher than in the other group. The Pearson correlation test results between hybrid bond density and resin tag penetration depth in the self-etch treatment group showed a value of r = 0.634 and p-value = 0.008 and in the etching group self-treatment with additional etching a value of r = 0.516 and p-value = 0.041 (p ≤ 0.05).
There is a statistically significant positive correlation or linear relationship between hybrid bond density and the penetration depth of resin tags in both treatment groups: the thicker the hybrid layer density, the deeper the penetration of the resin tags. This phenomenon may increase mechanical strength regarding stronger binding of resin cement to a tooth's substrate.
据报道，自酸蚀和额外酸蚀技术相结合作为纤维桩修复的粘固前程序能够增加粘结材料的粘结力。本研究旨在确定不同酸蚀技术对树脂水门汀渗入牙本质小管的影响。
选取32颗经根管治疗的前磨牙，制备10mm的纤维桩，并分为两组（n = 16）。第一组仅采用自酸蚀处理，第二组采用自酸蚀和额外酸蚀相结合的处理方法。使用0.1%荧光罗丹明B染色的树脂水门汀粘结纤维桩。将样本在牙根中1/3处切成2mm厚，并采用共聚焦激光扫描显微镜（CLSM）进行评估。统计分析测量采用独立t检验和Pearson相关性检验。
混合层密度和树脂突渗入长度在统计学上存在差异。两组中混合层密度与树脂突渗入长度之间在统计学上也观察到强线性正相关。自酸蚀加额外酸蚀组的混合层密度（9.68μm）和树脂突渗入深度（32.51μm）高于另一组。自酸蚀处理组中混合粘结密度与树脂突渗入深度之间的Pearson相关性检验结果显示r = 0.634，p值 = 0.008；在额外酸蚀的自酸蚀组中，r = 0.516，p值 = 0.041（p≤0.05）。
在两个治疗组中，混合粘结密度与树脂突的渗入深度之间存在统计学上显著的正相关或线性关系：混合层密度越厚，树脂突的渗入越深。这种现象可能会增加树脂水门汀与牙齿基质更强结合的机械强度。
