title: Wettability of root canal sealers on intraradicular dentine treated with different irrigating solutions.
abstract: OBJECTIVE
  The aim of this in vitro study was to evaluate the wettability of AH Plus and ThermaSeal Plus sealers on intraradicular dentine treated with different irrigating solutions.
  
  
  METHODS
  Fifty anterior teeth were decoronated and split longitudinally. Each root half was divided into 5 groups (n=10). Group I: 5mL of 2.5% NaOCl+QMix. Group II: 5mL of 2.5% NaOCl+17% EDTA. Group III: 5mL of 2.5% NaOCl+7% maleic acid. Group IV: 5mL of 2.5% NaOCl. Group V: 5mL of distilled water. Irrigation regimens were performed for 1min. Each specimen was placed inside a Dynamic Contact Angle Analyser. A controlled-volume droplet of sealer was placed on each specimen and the static contact angle was analysed.
  
  
  RESULTS
  The contact angle made by both sealers with EDTA-irrigated dentine was significantly larger when compared to the other irrigants (P<0.05). For ThermaSeal Plus, contact angles produced on maleic acid-, NaOCl- and distilled water-irrigated dentine were not significantly different, but were all significantly larger than the contact angle produced on QMix-irrigated dentine (P<0.05). For AH Plus, contact angles produced on NaOCl- and distilled water-irrigated dentine were not significantly different, but were significantly larger than those made by maleic acid and QMix.
  
  
  CONCLUSIONS
  When used as a final irrigant, QMix favours the wetting of root canal dentine by both AH Plus and ThermaSeal Plus sealers. Maleic acid shows a promising result when compared to EDTA and NaOCl. Wettability of both sealers is the worst on EDTA-irrigated dentine.
  
  
  CONCLUSIONS
  The present study highlights the effect of newer endodontic irrigating solutions on the wettability of sealers on to the root canal dentine, which is required for obtaining good obturation seal.
authors.affiliation: Department of Conservative Dentistry & Endodontics, Manipal College of Dental Sciences, Manipal, Manipal University, Karnataka, India.
authors.forename: Nidambur Vasudev
authors.initials: NV
authors.lastname: Ballal
authors.forename: Adlyn
authors.initials: A
authors.lastname: Tweeny
authors.forename: Khaled
authors.initials: K
authors.lastname: Khechen
authors.forename: K Narayan
authors.initials: KN
authors.lastname: Prabhu
authors.lastname: Satyanarayan
authors.forename: Franklin R
authors.initials: FR
authors.lastname: Tay
mesh_terms: D001645:Biguanides / Q000494:pharmacology; D003786:Dental Pulp Cavity / Q000187:drug effects / Q000648:ultrastructure*; D003804:Dentin / Q000187:drug effects / Q000648:ultrastructure*; D004492:Edetic Acid / Q000494:pharmacology; D004853:Epoxy Resins / Q000737:chemistry; D006801:Humans; D008298:Maleates / Q000494:pharmacology; D008422:Materials Testing; D011108:Polymers / Q000494:pharmacology; D012387:Root Canal Filling Materials / Q000737:chemistry*; D012388:Root Canal Irrigants / Q000494:pharmacology*; D012973:Sodium Hypochlorite / Q000494:pharmacology; D007507:Therapeutic Irrigation / Q000379:methods; D013997:Time Factors; D014867:Water; D017155:Wettability
chemical_list: D001645:Biguanides; D004853:Epoxy Resins; D008298:Maleates; D011108:Polymers; C557698:QMix root canal irrigant; D012387:Root Canal Filling Materials; D012388:Root Canal Irrigants; C534916:epoxy resin-based root canal sealer; D014867:Water; C030272:maleic acid; D004492:Edetic Acid; D012973:Sodium Hypochlorite