title: Assessment of the sealing abilities of several root canal sealers and filling methods.
abstract: OBJECTIVE
  To evaluate the sealing abilities of two root canal sealers (epoxy resin-based AH Plus(®) and polydimethylsiloxane-based GuttaFlow(®)) and of five root filling techniques (lateral condensation, matched taper single gutta-percha point, laterally condensed-matched taper gutta-percha point, Thermafil(®) and continuous wave of condensation), using a bacterial leakage model.
  
  
  METHODS
  One hundred and seventy-four single-rooted human teeth were randomly divided into 10 test groups (n = 15) and two control groups (n = 12). The roots that were filled with the test material, using the different root filling techniques, were mounted in a two-chamber bacterial leakage model and Enterococcus faecalis was added to the upper chambers. The lower chambers of all of the specimens were checked every day during the test period (100 days). The day of turbidity was recorded for each sample. Statistical analysis was performed using the Kaplan-Meier and log-rank tests.
  
  
  RESULTS
  There was no significant difference between the epoxy resin-based and the polydimethylsiloxane-based sealers, irrespective of the filling techniques used (p > 0.05). The continuous wave of condensation technique was found to be superior to the other techniques (p < 0.05). The difference between the other groups was insignificant (p > 0.05).
  
  
  CONCLUSIONS
  AH Plus and GuttaFlow sealers showed similar levels of sealing ability. The continuous wave of condensation technique had the best sealing capability when compared to the other techniques.
authors: Selçuk University, Faculty of Dentistry, Department of Endodontics , Konya , Turkey.
authors: Erhan
authors: E
authors: Ozcan
authors: Ayçe Ünverdi
authors: AÜ
authors: Eldeniz
authors: Hale Ari
authors: HA
authors: Aydinbelge
mesh_terms: D016022:Case-Control Studies; D003763:Dental Leakage; D003786:Dental Pulp Cavity / Q000382:microbiology; D006801:Humans; D012387:Root Canal Filling Materials / Q000592:standards*; D018915:Root Canal Preparation
chemical_list: D012387:Root Canal Filling Materials