The bond strength of endodontic sealers to root dentine exposed to different gutta-percha solvents

TOPÇUOĞLU H. S., DEMİRBUĞA S., Tuncay Ö., Arslan H., Kesim B., Yasa B.

International Endodontic Journal, cilt.47, sa.12, ss.1100-1106, 2014 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 47 Sayı: 12
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1111/iej.12257
  • Dergi Adı: International Endodontic Journal
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1100-1106
  • Anahtar Kelimeler: bond strength, root dentine, sealer, solvent, CANAL SEALERS, CALCIUM HYDROXIDE, ER-YAG, ADHESION, CHLOROFORM, PENETRATION, RETREATMENT, EUCALYPTUS, HALOTHANE, EFFICACY
  • Akdeniz Üniversitesi Adresli: Evet

Özet

© 2014 International Endodontic Journal.Aim: To evaluate the effects of various gutta-percha solvents on the push-out bond strength of several root canal sealers on root dentine. Methodology: The root canals of 210 single-rooted human teeth were prepared with the ProTaper System (Dentsply Maillefer, Ballaigues, Switzerland) up to a master apical file size of F4, and the following variables evaluated for bond strength: solvent type (chloroform, eucalyptol and orange oil), time (2 and 5 min), sealer type (AH Plus, MTA Fillapex and Sealapex) and root thirds (coronal, middle and apical). After canal filling, three 1-mm-thick slices were obtained from each root sample, and the bond strength of the test materials was measured using a push-out test set-up at a cross-head speed of 1 mm min-1. The data were analysed using four-way factorial anova (P = 0.05). Results: Bond strength was significantly affected by solvent type and time (P < 0.001). The use of chloroform for 5 min in the root canal decreased bond strength of all sealers (P < 0.001). Eucalyptol and orange oil did not affect the bond strength of the sealers (P > 0.05). In all conditions, the push-out bond strength was highest for AH Plus and lowest for MTA Fillapex (P < 0.001). Bond strength values decreased in a corono-apical direction in all groups (P < 0.001). Conclusions: Chloroform used for 5 min during retreatment decreased the bond strength of AH Plus, Sealapex and MTA Fillapex to root dentine.