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An In Vitro Comparative Evaluation of Apical Leakage Using Different Root Canal Sealers

Violeta Vula, Nexhmije Ajeti, Astrit Kuçi, Miranda Stavileci, Vegim Vula

Department of Dental Pathology and Endodontics, Faculty of Medicine, University of Prishtina, Prishtina, Kosovo

Med Sci Monit Basic Res 2020; 26:e928175

DOI: 10.12659/MSMBR.928175

Available online: 2020-11-25

Published: 2020-11-25


BACKGROUND: Successful endodontic therapy requires a fluid-tight apical seal. The aim of this in vitro study was to evaluate and compare the apical sealing ability of 3 root canal sealers: Apexit Plus, AH Plus, and Resilon/Epiphany sealers.
MATERIAL AND METHODS: Samples of 152 single-rooted teeth were divided into 2 test groups, and each group was divided into 3 subgroups based on the preparation and obturation technique. After preparation with the step-back technique, the first group of root canals were obturated with lateral gutta-percha compaction in combination with AH Plus sealer or Apexit Plus or with the Resilon/Epiphany system alone. In the second group, preparation was done with the crown-down technique and root canals were then obturated with Thermafil obturator in combination with AH Plus or Apexit Plus or with Resilon/Epiphany sealer alone. Apical leakage was determined using a dye leakage test observed with a stereomicroscope. The degree of dye leakage was assessed using the t test to comparing the arithmetic averages of the groups.
RESULTS: In the groups prepared with the step-back technique, the average dye leakage was lower in samples obturated with Resilon/Epiphany, than in those filled with AH Plus/lateral gutta-percha compaction or Apexit Plus/lateral gutta-percha compaction. In groups prepared with the crown-down technique and obturated with the Resilon/Epiphany system, the average dye leakage was lower than in those filled with AH Plus/Thermafil obturation and those filled with Apexit Plus/Thermafil obturation.
CONCLUSIONS: Although all preparation and obturation techniques showed dye penetration, the crown-down technique paired with the Resilon/Epiphany system showed the least leakage.

Keywords: Endodontics, Gutta-Percha, Root Canal Filling Materials