title: An ex vivo evaluation of the sealing ability of polydimethylsiloxane-based root canal sealers.
abstract: OBJECTIVE
  The aim was to study the sealing efficacy of polydimethylsiloxane-based root canal sealers.
  
  
  METHODS
  Polydimethylsiloxane-based root canal sealers were reviewed and subjected to an ex vivo study. A total of 60 extracted maxillary incisors were included in this study, which was conducted under two groups, Groups A and B, of 30 teeth each. In Group A, GuttaFlow and in Group B, RoekoSeal as sealers were used for obturation with Gutta-percha cones after preparing canal with a step back technique. The criterion for evaluating sealing efficacy of the sealers was light absorption by spectrophotometer. The collected data were analyzed statistically using one-way ANOVA test.
  
  
  RESULTS
  The findings of the study revealed that the mean leakage in Group B (0.1027) was significantly less than Group A (0.1649) (P < 0.001). RoekoSeal showed superior sealing ability.
  
  
  CONCLUSIONS
  RoekoSeal had the better sealing ability than GuttaFlow and may be recommended for clinical use.
authors.affiliation: Departments of Conservative Dentistry and Endodontics, New Delhi, India.
authors.forename: Preeti
authors.initials: P
authors.lastname: Jain
authors.forename: Varun
authors.initials: V
authors.lastname: Pruthi
authors.forename: Vimal K
authors.initials: VK
authors.lastname: Sikri
mesh_terms: D004129:Dimethylpolysiloxanes / Q000737:chemistry*; D006801:Humans; D066298:In Vitro Techniques; D012387:Root Canal Filling Materials
chemical_list: D004129:Dimethylpolysiloxanes; D012387:Root Canal Filling Materials; C013830:baysilon