Comparative Analysis of Marginal Adaptation of Different Root Canal Sealers Using Scanning Electron Microscope

Abstract

Aims:The present study aimed to evaluate and examine the degree of marginal adaptation of several root canal sealers using a scanning electron microscope (AH Plus, MTA-Fillapex, Total-Fill, and GuttaFlow Bioseal) to root dentine.
 Methods and Material:Forty extracted mandibular premolars with completely formed apices and a single root were selected. The root canals were instrumented after the decoronation of teeth. The samples (n = 10) were divided randomly into four groups. Group (1) was sealed with a resin-based sealer (AH Plus), Group (2) with an MTA-based sealer (MTA-Fillapex), Group (3) with a bioceramic sealer (TotalFill BC), and Group (4) with a silicone-based sealer (GuttaFlow Bioseal). After horizontally slicing samples with a diamond disk, marginal adaptability was evaluated using SEM.
 One-way ANOVA test and the multiple Post hoc test of Tukey was reliant on the statistical analysis of the data.
 Results: TotalFill BC has shown significantly higher marginal adaptation than MTA-Fillapex and GuttaFlow Bioseal (P < 0.05). There is no significant difference between apical and coronal sections in the four tested groups under SEM (P < 0.05).
 Conclusions: Total fill BC outperformed the other tested sealers in terms of marginal adaptability.