title: Comparative evaluation of fracture resistance of root obturated with resilon and gutta-percha using two different techniques: an in vitro study.
abstract: BACKGROUND
  Present study evaluated the fracture resistance of endodontically treated teeth filled with Gutta percha and a new resin based obturating material (Resilon).
  
  
  METHODS
  A total of 150 freshly extracted Mandibular premolar with fully formed apices were selected and decoronated at cemento-enamel junction (CEJ). Teeth were divided into Group A and Group B of 75 teeth each. In Group A canals were prepared up to # no 40 K file and Group B up to #no 80 K file. Both the groups were sub divided into five group of 15 teeth each as control group (unfilled canals), lateral condensation with Gutta-percha using AH 26 sealer, vertical condensation with Gutta-percha using AH 26 sealer, lateral condensation with Resilon using resilon sealer, vertical condensation with Resilon using resilon sealer. Each specimen was subjected to compressive load using Universal testing machine. The force required to fracture was recorded and data were analysed by ANOVA, Duncan's test and student T test.
  
  
  RESULTS
  The result showed that there is statistically significant difference among experimental groups (p < 0.05). The groups with the Resilon material displayed higher mean fracture loads than the Gutta percha groups. No statistically significant differences were observed between different preparation techniques.
  
  
  CONCLUSIONS
  Obturating the canals with the new resin-based obturation material increases the in vitro fracture resistance of endodontically treated teeth when compared with standard Gutta percha techniques.
authors.affiliation: Reader, Department of Conservative Dentistry & Endodontics, M A Rangoonwala College of Dental Sciences and Research Centre , Pune, Maharashtra, India .
authors.forename: Vijayakumar L
authors.initials: VL
authors.lastname: Shiraguppi
authors.affiliation: Reader, Department of Conservative Dentistry & Endodontics, Rishiraj College of Dental Sciences & Research Centre , Bhopal, Madhyapradesh, India .
authors.forename: Hema
authors.initials: H
authors.lastname: B S
authors.affiliation: Professor, Department of Prosthodontics, Rishiraj College of Dental Sciences & Research Centre , Bhopal, Madhyapradesh, India .
authors.forename: Chandu
authors.initials: C
authors.lastname: G S
authors.affiliation: Reader, Department of Conservative Dentistry & Endodontics. Sinhgad Dental College and Hospital , STES Campus, Vadgaon BK Pune 41, Maharashtra, India .
authors.forename: Niranjan
authors.initials: N
authors.lastname: Desai
authors.affiliation: Senior Lecturer, Department of Conservative Dentistry & Endodontics, Rishiraj College of Dental Sciences& Research centre , Bhopal, Madhyapradesh, India .
authors.forename: Antriksh
authors.initials: A
authors.lastname: Azad
keywords: Endodontic treatment; Lateral condensation; Obturation