title: An in vitro comparison of bond strengths of Gutta-percha/AH Plus, Resilon/Epiphany self-etch and EndoREZ obturation system to intraradicular dentin using a push-out test design.
abstract: OBJECTIVE
  To evaluate and compare the push-out bond strengths of three obturation materials; Gutta-percha/AH Plus, Resilon/Epiphany self-etch (SE) and EndoREZ obturation system to intraradicular dentin.
  
  
  METHODS
  Sixty single-canal anterior teeth were prepared and assigned to experimental groups (n = 20), designated as Group I: Gutta-percha/AH Plus, Group II: Resilon/Epiphany SE and Group III: EndoREZ sealer/EndoREZ points. After obturation, each tooth was prepared for push-out assessment with root slices of 2 mm thickness using universal testing machine.
  
  
  METHODS
  Two way analysis of variance and Scheffe's test.
  
  
  RESULTS
  Gutta-percha/AH Plus root fillings showed significantly highest bond strength. Also, root segment location did not have a significant influence on bond strength.
  
  
  CONCLUSIONS
  The adhesiveness quality to root dentin promoted by newer methacrylate resin-based obturation systems like Resilon/Epihany SE and EndoREZ is compromised even when teeth with simple anatomic features were obturated under well-monitored laboratory conditions.
authors.affiliation: Department of Conservative Dentistry and Endodontics, KLEVK Institute of Dental Sciences, Belgaum, Karnataka, India.
authors.forename: Sanjana A
authors.initials: SA
authors.lastname: Patil
authors.forename: Preeti K
authors.initials: PK
authors.lastname: Dodwad
authors.forename: Avinash A
authors.initials: AA
authors.lastname: Patil
keywords: AH Plus; EndoREZ; epiphany; push-out bond strength; resilon