Efficacy of different treatments of root canal walls on the pull-out bond strength of the fiber posts

Arslan H., Yilmaz C. B., KARATAŞ E., Barutcigil C., TOPÇUOĞLU H. S., Yeter K.

LASERS IN MEDICAL SCIENCE, vol.30, no.2, pp.863-868, 2015 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 30 Issue: 2
  • Publication Date: 2015
  • Doi Number: 10.1007/s10103-013-1457-4
  • Journal Name: LASERS IN MEDICAL SCIENCE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.863-868
  • Eskisehir Osmangazi University Affiliated: Yes

Abstract

The aim of this study was to evaluate the efficacy of different irrigation protocols, including laser, on the retention of the fiber-reinforced composite posts to root canal dentinal walls using pull-out tests. Root canals of 60 single-rooted human teeth were filled and post spaces were prepared. Finally, specimens were divided randomly into five groups, each consisting of 12 specimens as follows: 5 % NaOCl (control group), 17 % EDTA, ultrasonic with 17 % EDTA, single 1.5-W Er:YAG laser application, and the combined use of Er:YAG laser and 17 % EDTA. After the root canal procedures, fiber posts were cemented to the root canal. Pull-out tests were performed using a universal testing machine at a crosshead speed of 2 mm/min. The data were analyzed using a one-way ANOVA and Bonferroni post hoc test (p = 0.05). Irradiation by the Er:YAG laser with/without EDTA positively affected the pull-out bond strength (p < 0.001). The pull-out strength was significantly higher in the ultrasonic group than that of the single irrigation with NaOCl or EDTA (p < 0.001). Er:YAG laser irradiation with/without EDTA enhanced the bond strength of fiber posts to root canal dentin walls. Additionally, ultrasonic-EDTA combination increased the bond strength.