The Effect of Endosequence BC Sealer Used in Root Canal Filling in Reinforcing the Roots of Endodontically Treated Teeth - An in Vitro Study

Abstract

Background and Aim: The emergence of bioceramic materials represented a paradigm shift in dentistry, due to their biological and mechanical properties like their bonding ability to radicular dentin and increasing its fracture resistance. Therefore, the aim of this in vitro study was to investigate the effect of Endosequence BC sealer (one of the bioceramic materials) used in root canal filling in reinforcing the roots of endodontically treated teeth, and knowing its effectiveness in this field.

Materials and Methods: The sample of study consisted of (40) recently extracted, single root and single canal of permanent mandibular human premolar teeth. There crowns were decoronated to get a (15 mm) root length, and root canals were prepared with iRaCe rotary system. The sample was randomly divided into two equal groups of (20 roots) each, according to the root canal filling material used: [Group1: Gutta-Percha (GP) Points + Endosequence BC Sealer, Group2: Endosequence BC Points + Endosequence BC Sealer] with Matched – Taper Single – Cone Technique (MSCT) in both of them, then the last apical (5 mm) of all roots were embedded in acrylic resin blocks and subjected to fracture resistance test for vertical forces at a speed (1 mm/minute) on the universal testing machine (Test 114), the force at which the fracture occurred was recorded with Newton (N). Data were subjected to T- student statistical test to study the significance of differences in the mean of the force of fracture resistance between the two groups studied, with (P-value ≤ 0.05) as the level of significance.

Results: The results showed that the second group was higher fracture resistance than the first group, with statistically significant differences (P < 0.05).

Conclusions: Within the limitations of this in vitro study, it can be concluded that Endosequence BC Sealer has generally contributed to reinforce the roots of endodontically treated teeth, especially when its sharing with Endosequence BC Points.