Prithviraj K J, Manjunatha R K, Horatti Priya, Rao Nageshwar, Gokul S
Department of Conservative Dentistry and Endodontics, Yenepoya Dental College, Yenepoya University, Mangalore, Karnataka, India.
Department of Conservative Dentistry and Endodontics, Govt. Dental College and Research Institute, Bellary, Karnataka, India.
Indian J Dent Res. 2020 Jan-Feb;31(1):37-41. doi: 10.4103/ijdr.IJDR_98_18.
To compare the microbial leakage of three root canal filling materials: AH Plus with Gutta-percha, Epiphany with Resilon, and Guttaflow using Enterococcus faecalis as the bacterial marker.
In total, 30 caries free, human maxillary incisors with straight roots were used. The teeth were de-coronated with a diamond disc and the length was standardized for all specimens. Access opening was done through the coronal portion and the working length was determined. All the teeth were prepared to a standardized size apically and coronally. The teeth were then randomly divided into three experimental groups each. After obturation of the root canals, the outer surfaces of the teeth were coated with two layers of nail enamel except the apical 2 mm. The teeth were then subjected for bacterial leakage test using E. faecalis as a bacterial marker in dual chamber bacterial leakage model for a period of 30 days.
Chi-square test.
Results showed that Resilon/Epiphany (Group-2) demonstrated less leakage and Gutta-percha/AH Plus (Group-1) showed maximum leakage with the statistically significant difference between the two (P < 0.05). Guttaflow (Group-3) also showed less leakage than Gutta-percha/AH Plus (Group-1) with the statistically significant difference between the two (P < 0.05). There was no statistically significant difference between Resilon/Epiphany (Group-2) and Guttaflow (Group-3).
Resilon/Epiphany and Guttaflow groups demonstrated less microbial leakage than Gutta-percha/AH Plus group.
以粪肠球菌作为细菌标记物，比较三种根管充填材料的微渗漏情况：牙胶尖与AH Plus、Resilon与Epiphany、Guttaflow。
总共使用30颗无龋、牙根直的人上颌切牙。用金刚石盘去除牙冠，所有标本的长度标准化。通过牙冠部分进行开髓，并确定工作长度。所有牙齿在根尖和冠部均预备至标准化尺寸。然后将牙齿随机分为三个实验组。根管充填后，除根尖2mm外，牙齿外表面涂两层指甲油。然后在双室细菌渗漏模型中，以粪肠球菌作为细菌标记物，对牙齿进行30天的细菌渗漏测试。
卡方检验。
结果显示，Resilon/Epiphany组（第2组）渗漏较少，牙胶尖/AH Plus组（第1组）渗漏最多，两组之间有统计学显著差异（P<0.05）。Guttaflow组（第3组）渗漏也比牙胶尖/AH Plus组（第1组）少，两组之间有统计学显著差异（P<0.05）。Resilon/Epiphany组（第2组）和Guttaflow组（第3组）之间无统计学显著差异。
Resilon/Epiphany组和Guttaflow组的微渗漏比牙胶尖/AH Plus组少。
