Microscopic evaluation of sealer penetration and interfacial adaptation of three different endodontic sealers: An in vitro study
Tushar Kanti Majumdar, Sayantan Mukherjee, Paromita Mazumdar
Abstract
<br><b>Background :</b> The dentinal tubular penetration depth and interfacial adaptation of sealer are important factors for successful root canal treatment.<br><b>Aims :</b> This study aims to assess and evaluate the sealer penetration depth and interfacial adaptation of AH Plus, Apexit Plus, and GuttaFlow Bioseal sealer to root dentin.<br><b>Materials and Methods :</b> After decoronating sixty extracted single-rooted premolar teeth, preparation was done using ProTaper Gold rotary files until F3. The samples were randomly divided into three groups (<i>n</i> = 20 each) consistent with the sort of sealer used for obturation. After obturation with lateral compaction technique, half of the samples (<i>n</i> = 10 each) were sectioned transversely for measuring tubular depth penetration under a confocal laser scanning microscope. Longitudinal sections were obtained for the rest half the samples to gauge the difference of sealer using the scanning electron microscope.<br><b>Statistical Analysis Used :</b> Data were analyzed using one-way analysis of variance and Tukey's <i>post hoc</i> tests.<br><b>Results :</b> GuttaFlow Bioseal has shown a significantly higher depth of sealer penetration and minimum interfacial adaptation than resin-based sealer and calcium hydroxide-based sealer (<i>P</i> < 0.05).<br><b>Conclusion :</b> At all root regions, the GuttaFlow Bioseal sealer exhibited more sealer penetration and minimum interfacial adaptation whereas the Apexit Plus sealer exhibited less sealer penetration and maximum interfacial adaptation.<br>