Navarro-Escobar Esther, Baca Pilar, Ruiz-Linares Matilde, Arias-Moliz Maria Teresa, Perez-Heredia Mercedes, Ferrer-Luque Carmen Maria
Department of Stomatology.
Acta Odontol Scand. 2014 Nov;72(8):819-24. doi: 10.3109/00016357.2014.913196. Epub 2014 May 5.
The aim of this study was to compare the efficacy of different dentine adhesives in delaying the coronal bacterial leakage of Enterococcus faecalis in filled root canals. Materials and methods. Ninety-five lower incisors of patients >65 years of age were instrumented using the ProTaper system and were irrigated with 1 mL of 2.5% sodium hypochlorite (NaOCl) alternated with 1 mL 17% EDTA between each file change. Final irrigation was performed with 5 mL of 17% EDTA and then flushed with 5 mL of distilled water. The teeth were randomly divided into five experimental groups (n = 15/group) and one of the following dentine adhesives was applied: (1) AdheSE; (2) Excite DSC; (3) Clearfil Protect Bond; (4) One Coat 7.0; or (5) Control group without adhesive. After filling the root canals, the samples were mounted on a double chamber device to evaluate the bacterial filtration of E. faecalis during a period of 240 days. The results underwent non-parametric Kaplan-Meier survival analysis and comparisons among groups were done using the Log-Rank test.
At 240 days, E. faecalis was detected in samples of all groups in the lower chamber. The highest survival value was obtained by One Coat 7.0, giving statistically significant differences from the other groups, whereas Clearfil Protect Bond, AdheSE and Excite DSC showed similar behaviours, likewise similar to the Control group.
One Coat 7.0 adhesive system provides the longest survival value to delay E. faecalis coronal leakage in filled root canals.
本研究旨在比较不同牙本质粘结剂在延缓根管充填后粪肠球菌冠部细菌渗漏方面的疗效。材料与方法。对95颗65岁以上患者的下颌切牙使用ProTaper系统进行预备，每次更换锉时用1 mL 2.5%次氯酸钠（NaOCl）与1 mL 17%乙二胺四乙酸（EDTA）交替冲洗。最后用5 mL 17% EDTA冲洗，然后用5 mL蒸馏水冲洗。将牙齿随机分为五个实验组（每组n = 15），并应用以下一种牙本质粘结剂：（1）AdheSE；（2）Excite DSC；（3）Clearfil Protect Bond；（4）One Coat 7.0；或（5）不使用粘结剂的对照组。根管充填后，将样本安装在双腔装置上，以评估240天内粪肠球菌的细菌滤过情况。结果进行非参数Kaplan-Meier生存分析，组间比较采用对数秩检验。
在240天时，在下腔室的所有组样本中均检测到粪肠球菌。One Coat 7.0获得了最高的生存值，与其他组相比有统计学显著差异，而Clearfil Protect Bond、AdheSE和Excite DSC表现出相似的情况，同样与对照组相似。
One Coat 7.0粘结剂系统在延缓根管充填后粪肠球菌冠部渗漏方面提供了最长的生存值。
