Journal of Conservative Dentistry
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ORIGINAL RESEARCH ARTICLE
Year : 2016  |  Volume : 19  |  Issue : 4  |  Page : 360-363

Marginal adaptation of newer root canal sealers to dentin: A SEM study


Department of Conservative Dentistry and Endodontics, Sibar Institute of Dental Sciences, Guntur, Andhra Pradesh, India

Correspondence Address:
Dr. Swapnika Polineni
D. No. 6-4-4, 4/5 Arundel Pet, Opposite Help Hospitals, Guntur - 522 002, Andhra Pradesh
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0972-0707.186453

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Aim : This in vitro study evaluated and compared the marginal adaptation of three newer root canal sealers to root dentin. Materials and Methods : Thirty freshly extracted human single-rooted teeth with completely formed apices were taken. Teeth were decoronated, and root canals were instrumented. The specimens were randomly divided into three groups (n = 10) based upon the sealer used. Group 1 - teeth were obturated with epoxy resin sealer (MM-Seal). Group 2 - teeth were obturated with mineral trioxide aggregate (MTA) based sealer (MTA Fillapex), Group 3 - teeth were obturated with bioceramic sealer (EndoSequence BC sealer). Later samples were vertically sectioned using hard tissue microtome and marginal adaptation of sealers to root dentin was evaluated under coronal and apical halves using scanning electron microscopy (SEM) and marginal gap values were recorded. Results : The data were statistically analyzed by two-way ANOVA and Tukey's multiple post hoc test. The highest marginal gap was seen in Group 2 (apical-16680.00 nm, coronal-10796 nm) and the lowest marginal gap was observed in Group 1 (apical-599.42 nm, coronal-522.72 nm). Coronal halves showed superior adaptation compared to apical halves in all the groups under SEM. Conclusion : Within the limitations of this study epoxy resin-based MM-Seal showed good marginal adaptation than other materials tested.


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