Ultrastructural Evaluation of the Apical Seal in Roots Filled with a Polycaprolactone-Based Root Canal Filling Material

Authors:
  • FTF Tay
    F Tay
  • RLR Loushine
    R Loushine
  • RWR Weller
    R Weller
  • WKW Kimbrough
    W Kimbrough
  • DPD Pashley
    D Pashley
  • YMY Mak
    Y Mak
  • CSC Shirleylai
    C Shirleylai
  • RRR Raina
    R Raina
  • MWM Williams
    M Williams
Publisher website
Google Scholar
Abstract
This in vitro study compared the ultrastructural quality of the apical seal achieved with Resilon/Epiphany and gutta-percha/AH Plus. Single-rooted extracted human teeth were prepared using a crown-down technique, debrided with NaOCl and EDTA, and obturated with either Resilon/Epiphany or gutta-percha/AH Plus. They were examined for gaps along canal walls using SEM, and for apical leakage using a transmission electron microscopy (TEM). SEM revealed both gap-free regions, and gap-containing regions in canals filled with both materials. TEM revealed the presence of silver deposits along the sealer-hybrid layer interface in Resilon/Epiphany, and between the sealer and gutta-percha in the controls. It is concluded that a complete hermetic apical seal cannot be achieved with either root filling materials.

This publication has 24 references indexed in Scilit: