title: An in vitro assessment of apical microleakage in root canals obturated with gutta-flow, resilon, thermafil and lateral condensation: A stereomicroscopic study.
abstract: OBJECTIVE
  The purpose of this study was to evaluate and compare the apical microleakage of Resilon to Thermafil, Gutta-flow and Cold lateral condensation using a dye penetration method.
  
  
  METHODS
  Sixty extracted human maxillary single rooted teeth with intact roots were selected. Decoronation was followed by canal preparation upto ISO size 50. Teeth were then randomly divided into four groups for obturation. Group I - Cold lateral condensation with AH Plus, Group II - Gutta-flow with master cone, Group III- Thermafil with AH Plus, Group IV- Resilon with Self-etch epiphany. Apical microleakage was assessed by dye penetration test under stereomicroscope.
  
  
  RESULTS
  The result was analyzed statistically and showed that Resilon provides a best seal. Gutta-flow exhibited maximum microleakage. All the four groups at some level or the other exhibited some percentage of microleakage.
  
  
  CONCLUSIONS
  None of the methods showed a fluid-tight seal.
authors.affiliation: Department of Conservative dentistry and Endodontics, Darshan Dental College and Hospital, Loyara, Udaipur, India.
authors.forename: Sandhya Kapoor
authors.initials: SK
authors.lastname: Punia
authors.forename: Prasannalatha
authors.initials: P
authors.lastname: Nadig
authors.forename: Vikas
authors.initials: V
authors.lastname: Punia