Microbial leakage evaluation of warm gutta - percha techniques

J Biol Regul Homeost Agents. 2021 May-Jun;35(3 Suppl. 1):67-75. doi: 10.23812/21-3supp1-9.

Abstract

The aim of this study is to compare bacterial leakage of MicroHeat and continuous wave with and without endodontic sealer. Thirty-eight single-rooted extracted mandibular premolars were selected and randomly divided into four experimental groups (n=8) and two control groups (n=3). Teeth were prepared with Mtwo NiTi files and obturated with MicroHeat or System B with or without endodontic sealer. Three teeth were used as positive controls (Ct+) and three intact teeth served as negative controls (Ct-). All samples were tested for bacterial infiltration every day for 60 days. On day 32 overall contamination value was 62.5% for Mseal, 75% for Mnoseal, 75% for SBseal and 37.8% for SBnoseal; after 60 days, the final contamination result was 100% for Mseal, Mnoseal and SBseal and 87.5% for SBnoseal. At the end of the observation period, groups showed no statistically significant differences.

Keywords: MicroHeat; bacterial leakage; continuous wave; endodontic sealer; filling method.

MeSH terms

  • Gutta-Percha*
  • Root Canal Filling Materials*
  • Root Canal Obturation

Substances

  • Root Canal Filling Materials
  • Gutta-Percha