Restor Dent Endod.  2018 Aug;43(3):e30. 10.5395/rde.2018.43.e30.

Bacterial leakage and micro-computed tomography evaluation in round-shaped canals obturated with bioceramic cone and sealer using matched single cone technique

• Yanpiset K
• Banomyong
• Chotvorrarak K
• Srisatjaluk RL

• KMID: 2418463
• DOI: http://doi.org/10.5395/rde.2018.43.e30

Abstract

OBJECTIVES
To evaluate sealing ability of root canals obturated with bioceramic-impregnated gutta percha cone (BCC) or gutta percha (GP), with bioceramic sealer (BCS) or AH Plus (AH; Dentsply-Maillefer), in roundly-prepared canals using matched single-cone technique, based on bacterial leakage test, and to analyze obturation quality using micro-computed tomography (CT) analysis.
MATERIALS AND METHODS
Ninety-two distobuccal roots of maxillary molars were prepared using nickel-titanium files to apical size 40/0.06. The roots were divided into 4 groups (n = 20) that were obturated with a master cone and sealer: GP/AH, BCC/AH, GP/BCS, and BCC/BCS. Bacterial leakage model using Enterococcus faecalis was used to evaluate sealing ability for 60-day period. Obturated samples from each group (n = 4) were analyzed using micro-CT.
RESULTS
All groups showed bacterial leakage at 20%-45% of samples with mean leakage times of 42-52 days. There were no significant differences in bacterial leakage among the groups. Micro-CT showed minimal gaps and voids in all groups at less than 1%.
CONCLUSIONS
In roundly-prepared canals, the single cone obturation with BCC/BCS was comparable to GP/AH for bacterial leakage at 60 days.

Keyword

Bacterial leakage; Bioceramic; Epoxy resin based root canal sealer; Micro computed tomography; Root canal obturation

MeSH Terms

Dental Pulp Cavity
Enterococcus faecalis
Gutta-Percha
Molar
Root Canal Obturation
Gutta-Percha