title: Sealing ability of three hydrophilic single-cone obturation systems: An in vitro glucose leakage study.
abstract: OBJECTIVE
  The aim of this study is to compare the corono-apical sealing ability of three single-cone obturation systems using a glucose leakage model.
  
  
  METHODS
  A total of 90 freshly extracted human maxillary single-rooted teeth was selected, and their crowns were cut. The root canal of each sample was instrumented using a rotary crown down technique and then divided into four experimental (n = 20 each) and two control groups (n = 5 each). Samples in the experimental groups were filled as follows: Group 1, cold lateral condensation using gutta-percha/AH Plus; group 2, single-cone C-points/smart-paste bio-sealer; group 3, single-cone bio-ceramic (BC) impregnated gutta-percha/endo-sequence BC sealer; group 4, single-cone Resilon/RealSeal SE after 7 days, the sealing ability of root canal fillings was tested at different time intervals using glucose leakage model. Glucose leakage values were measured using a spectrophotometer and statistically analyzed.
  
  
  RESULTS
  The four experimental groups presented significantly different glucose leakage values at all test periods (P < 0.05). At the end of the observation period, the cumulative glucose leakage values of groups 2 and 3 were significantly lower than those of groups 1 and 4 (P < 0.05).
  
  
  CONCLUSIONS
  C-points/smart-paste Bio and BC impregnated gutta-percha/endo-sequence BC sealer combinations provided the superior sealing ability over the lateral condensation technique.
authors.affiliation: Deptarment of Conservative and Endodontic, YMT Dental College and Hospital, Navi Mumbai, Maharashtra, India.
authors.forename: Vibha
authors.initials: V
authors.lastname: Hegde
authors.affiliation: Deptarment of Conservative and Endodontic, YMT Dental College and Hospital, Navi Mumbai, Maharashtra, India.
authors.forename: Shashank
authors.initials: S
authors.lastname: Arora
keywords: Bio-ceramic sealer; glucose leakage; smart-paste bio
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