In vitro evaluation of sealing ability and antimicrobial activity of hydraulic temporary sealing materials

K. Gidwani, Prashanthi Madhyastha, N. Srikant, E. Suman, R. Kotian
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引用次数: 3

Abstract

Context: A good seal ability and antimicrobial action is a desired feature of an effective temporary sealing material. Aims: To compare the sealing ability and antimicrobial activity of three temporary sealing materials: Caviton, MD Temp and IRM Materials and Methods: In the present in vitro study, sealing ability (dye penetration method using 2% methylene blue) was measured with class I cavities on human premolars restored using test materials. The antimicrobial activity (agar diffusion test) of the materials was evaluated against Streptococcus mutans (MTCC 497 and clinical isolate) and Candida albicans (ATCC 60193 and clinical isolate). Statistical Analysis Used: For sealing ability, data was statistically analyzed using Chi-square test at a significance level of 5% using Statistical Package for Social Sciences (SPSS) 15.0. Antimicrobial activity was evaluated by comparing the mean diameter of the inhibition zones formed around the respective wells. Results: IRM produced best marginal sealing (Fisher′s exact test = 38.361 and P < 0.001) and was also associated with higher antimicrobial activity in comparison to Caviton and MD Temp. The inferior properties of MD temp can be attributed to thermal instability demonstrated by MD Temp leading to an inadequate seal, and also failed to produce a zone of inhibition. IRM proved effective and superior to Caviton and MD Temp in both these aspects. Conclusions: The success of an endodontic treatment depends on the effective seal achieved following debridement. This study stresses the need for an adequate marginal seal along with satisfactory antibacterial potential for a temporary sealing material.
水力临时密封材料密封性能及抗菌活性的体外评价
背景:良好的密封能力和抗菌作用是一种有效的临时密封材料的理想特征。目的:比较Caviton、MD Temp和IRM三种临时封闭材料的封闭能力和抗菌活性。材料和方法:本研究采用2%亚甲基蓝染色渗透法,对使用试验材料修复的人前磨牙I类牙槽进行了体外封闭能力的测定。通过琼脂扩散试验评价了材料对变形链球菌(MTCC 497及临床分离株)和白色念珠菌(ATCC 60193及临床分离株)的抑菌活性。采用统计学分析:对于密封能力,数据采用χ 2检验,显著性水平为5%,统计学分析采用SPSS 15.0软件。通过比较各自井周围形成的抑制带的平均直径来评估抗菌活性。结果:IRM产生了最好的边缘密封(Fisher精确检验= 38.361,P < 0.001),并且与Caviton和MD Temp相比,IRM具有更高的抗菌活性。MD Temp的较差特性可归因于MD Temp所表现出的热不稳定性,导致密封不足,也未能产生抑制区。IRM在这两方面均优于Caviton和MD Temp。结论:根管治疗的成功取决于清创后的有效密封。本研究强调需要一个足够的边缘密封以及满意的抗菌潜力的临时密封材料。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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