Abstract

Aims: This study aimed to assess the apical sealing ability of experimental apatite-coated gutta-percha points compared to various coated gutta-percha root filling materials.
 Study Design: Experimental in-vitro study.
 Place and Duration of Study: Department of Restorative Dentistry, University of Malaya, June 2014 and November 2014.
 Methodology: Ninety-six extracted permanent maxillary central incisors were standardized and prepared by ProTaper universal rotary files. The specimens were allocated into six groups (n=15) and filled using matching single cone technique as follows; EndoREZ points with EndoREZ sealer, Bioceramic coated points (BCGP), Active GP (ActiV GP), Conventional gutta-percha (GP), apatite coated GP (HAGP) all in combination with Endosequence BC sealer. The sixth group was filled using cold lateral compaction of Conventional GP and Endosequence BC sealer. The specimens were subjected to a dye leakage test. The remaining six teeth were divided equally to be used as a negative and positive control. One-way analysis of variance (ANOVA) followed by the post hoc Dunnett T3 test was performed for data analysis, and the significance value was set at P =.05.
 Results: ActiV GP had the least leakage followed by BCGP, HAGP, cold lateral compaction, conventional GP, and EndoRez.
 Conclusion: HAGP as root canal filling showed favourable sealing ability comparable to ActiV GP, BCGP, and conventional GP and it was superior to EndoREZ.

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