H Bhandi Shilpa, T S Subhash
Department of Conservative Dentistry and Endodontics, M S Ramaiah Dental College and Hospital, Bangalore, India.
J Int Oral Health. 2013 Feb;5(1):54-65. Epub 2013 Feb 26.
Microleakage continues to be a main reason for failure of root canal treatment where the challenge has been to achieve an adequate seal between the internal structure and the main obturating material. The objective of this study is to compare the sealing ability of 3 newer obturating materials GuttaFlow, Resilon/Epiphany system (RES) and Thermafil, using silver nitrate dye and observing under stereomicroscope.
Thirty single rooted teeth were divided into following groups. Group I : GuttaFlow ;Group II : Resilon /Epiphany sealer Group III : Thermafil with AH-Plus sealer. Teeth were decoronated and instrumented with profile rotary system and obturated with specified materials. Apical seal was determined by dye penetration method using silver nitrate. Then the specimens were transversely sectioned at each mm till 3 mm from the apex. Dye leakage was determined using stereomicroscope. Statistical analysis of the results was performed using Kruskall-Wallis test.
The results showed that Group II i.e., Resilon with Epiphany sealer showed the least amount of microleakage when compared to Group I i.e., GuttaFlow and Group III i.e., Thermafil with AH-plus sealer.
Based on the results of this study it can be concluded that RES had higher sealing ability followed by Thermafil and GuttaFlow in vitro but further studies have to be carried out to make a direct correlation between these results and invivo situation. How to cite this article: Bhandi S H, Subhash T S. Comparative Evaluation of Sealing Ability of Three Newer Root Canal Obturating Materials Guttaflow, Resilon and Thermafil: An In Vitro Study. J Int Oral Health 2013; 5(1):54-65.
微渗漏仍然是根管治疗失败的主要原因,而面临的挑战一直是在内部结构与主要充填材料之间实现充分的封闭。本研究的目的是使用硝酸银染料并在体视显微镜下观察,比较3种新型充填材料GuttaFlow、Resilon/Epiphany系统(RES)和Thermafil的封闭能力。
30颗单根牙被分为以下几组。第一组:GuttaFlow;第二组:Resilon/Epiphany封闭剂;第三组:Thermafil与AH-Plus封闭剂。对牙齿进行去冠处理,使用Profile旋转系统进行预备,并用指定材料进行充填。通过使用硝酸银的染料渗透法确定根尖封闭情况。然后将标本从根尖开始每毫米进行横向切片,直至距离根尖3毫米处。使用体视显微镜确定染料渗漏情况。使用Kruskal-Wallis检验对结果进行统计学分析。
结果显示,与第一组即GuttaFlow和第三组即Thermafil与AH-plus封闭剂相比,第二组即Resilon与Epiphany封闭剂显示出最少的微渗漏量。
基于本研究结果可以得出结论,在体外RES具有更高的封闭能力,其次是Thermafil和GuttaFlow,但必须进行进一步研究以建立这些结果与体内情况之间的直接关联。如何引用本文:Bhandi S H, Subhash T S. 三种新型根管充填材料Guttaflow、Resilon和Thermafil封闭能力的比较评价:一项体外研究。《国际口腔健康杂志》2013;5(1):54 - 65。