title: Assessment of the wetting behavior of three different root canal sealers on root canal dentin.
abstract: OBJECTIVE
  The objective of the present study was to evaluate and compare the wetting behavior of three different root canal sealers on the root canal dentin surface treated with irrigants and their combination.
  
  
  METHODS
  Decoronation and apical third resections of 27 extracted single-rooted human mandibular premolars were done. The roots were then split longitudinally into two halves, and randomly assigned into three treatment groups (n=18). The root dentin surfaces in Group1, Group 2 and Group 3 were treated with 17% ethylene diamine tetra acetic acid (EDTA), 3% sodium hypochlorite (NaOCl) and combination of 17% EDTA and 3% NaOCl, respectively. Each group was subdivided into three subgroups of 6 specimens each, depending on the the sealer used, i.e. sub group A. zinc oxide (ZnOE), sub group B. AH plus, subgroup C. Guttaflow sealer, respectively. The contact angle was measured using First Ten Angstroms (FTA) 200 dynamic contact angle analyzer.
  
  
  RESULTS
  The contact angle values for AH Plus sealer were significantly lower when compared to the other two sealer groups.
  
  
  CONCLUSIONS
  The wettability of AH Plus sealer on the root surface dentin was found to be better than Gutta-Flow and ZnOE sealer.
authors.affiliation: Department of Conservative Dentistry and Endodontics, Mamata Dental College, Khammam, Andhra Pradesh, India.
authors.forename: Muralidhar
authors.initials: M
authors.lastname: Tummala
authors.forename: Veeramachaneni
authors.initials: V
authors.lastname: Chandrasekhar
authors.forename: A Shashi
authors.initials: AS
authors.lastname: Rashmi
authors.forename: M
authors.initials: M
authors.lastname: Kundabala
authors.forename: Vasudev
authors.initials: V
authors.lastname: Ballal