Sealer penetration and adaptation in the dentinal tubules: a scanning electron microscopic study.

Introduction: Tubular penetration and adaptation of the sealer can determine the sealability of the root filling. The aim of this study was to assess, in vitro, the tubular adaptation and penetration depth and the adaptation to the root canal walls in the apical, middle, and coronal third of the root canal of 5 different sealers used in combination with softened gutta-percha cones.

Methods: Fifty-two single-rooted teeth were prepared and filled with 5 different sealers and softened gutta-percha cones.