title: Comparison of different gutta-percha root filling techniques: Thermafil, Quick-fill, System B, and lateral condensation.
abstract: OBJECTIVE
  In this in vitro study, the core (gutta-percha or gutta-percha and carrier)/sealer ratio and the sealing ability were calculated for 4 different gutta-percha techniques: Thermafil, JS Quick-Fill, System B, and lateral condensation.
  
  
  METHODS
  One hundred single-rooted teeth were instrumented and obturated. Forty of the teeth were embedded in resin and sectioned horizontally at 1, 2,3, and 4 mm from the anatomic apex. Photographs were taken of each section, and the total area of the canal filled with core material or sealer was calculated. Sixty of the teeth were kept in wet storage for 90 days, after which the teeth were immersed in 2% methylene blue for 48 hours. The length of dye penetration was measured.
  
  
  RESULTS
  Roots obturated with Thermafil and JS Quick-Fill contained significantly more core material than did those obturated with System B or with lateral condensation. The lateral condensation technique had the lowest core/sealer ratio (P < .05). Roots using Thermafil and Quick-Fill showed significantly less dye leakage than did the lateral condensation technique.
  
  
  CONCLUSIONS
  Through use of these techniques in vitro, Thermafil and JS Quick-Fill with carrier and System B were found to be superior to the lateral condensation technique in terms of core/sealer ratio. Thermafil and Quick-Fill were superior to lateral condensation in terms of dye leakage.
authors.affiliation: Faculty of Dentistry, Department of Endodontics, Marmara University, Istanbul, Turkey.
authors.forename: N
authors.initials: N
authors.lastname: Gençoğlu
authors.forename: Y
authors.initials: Y
authors.lastname: Garip
authors.forename: M
authors.initials: M
authors.lastname: Baş
authors.forename: S
authors.initials: S
authors.lastname: Samani
mesh_terms: D000704:Analysis of Variance; D003763:Dental Leakage / Q000517:prevention & control; D006171:Gutta-Percha; D006801:Humans; D012389:Root Canal Obturation / Q000295:instrumentation / Q000379:methods*
chemical_list: D006171:Gutta-Percha