title: Fracture resistance of roots obturated with three different materials.
abstract: OBJECTIVE
  The aim of this study was to compare the fracture resistance of roots obturated with different materials.
  
  
  METHODS
  Sixty root canals were instrumented and divided into 4 equal groups (n = 15 each). The root canals in group 1 were filled with AH26 sealer and gutta-percha, in group 2 with Resilon and Epiphany, and in group 3 with Ketac-Endo Aplicap and gutta-percha. Fifteen root canals had no obturation. The force required to fracture was recorded. The data was analyzed with analysis of variance and Duncan test.
  
  
  RESULTS
  The mean force of fracture for group 1 was significantly higher than for the other 3 groups (P < .05). There was significant difference between group 2 and group 3 (P < .05). Group 2 and group 3 were not significantly different from the control group (P > .05).
  
  
  CONCLUSIONS
  The use of AH26 + gutta-percha increased the fracture resistance of instrumented root canals compared with Resilon + Epiphany and Ketac-Endo Aplicap + gutta-percha.
authors: Department of Operative Dentistry and Endodontics, Faculty of Dentistry, Gazi University, Ankara, Turkey. ilkeatasoy@yahoo.com
authors: Ozgür Ilke Atasoy
authors: OI
authors: Ulusoy
authors: Ozgür
authors: O
authors: Genç
authors: Seda
authors: S
authors: Arslan
authors: Tayfun
authors: T
authors: Alaçam
authors: Güliz
authors: G
authors: Görgül
mesh_terms: D000704:Analysis of Variance; D006801:Humans; D012387:Root Canal Filling Materials / Q000737:chemistry*; D012389:Root Canal Obturation / Q000379:methods*; D014082:Tooth Fractures / Q000517:prevention & control*; D014092:Tooth Root / Q000737:chemistry*
chemical_list: D012387:Root Canal Filling Materials