title: Fracture resistance of teeth obturated with Gutta percha and Resilon: An in vitro study.
abstract: OBJECTIVE
  The aim of this study was to evaluate and compare the fracture resistance of endodontically treated teeth filled with gutta percha and Resilon.
  
  
  METHODS
  A total of 60 freshly extracted single rooted teeth are selected and their anatomical crown removed at the CEJ. All samples were instrumented with the Step-back technique. Samples were randomly divided into three groups of 20 samples each: Group A obturated by lateral condensation with gutta percha and AH plus sealer, Group B obturated by lateral condensation with Resilon; Group C recieved no filling. Restored teeth were subjected to compressive loading in a universal testing machine. The results of fracture resistance recorded and statistical analysis done.
  
  
  RESULTS
  THE MEAN AND SD VALUES FOR THE GROUPS ARE AS FOLLOWS: Group A-536.555 ± 128.816, Group B- 885.943 ± 194.410 and Group C- 591.066 ± 68.97. It was seen that samples of Group B showed the highest fracture resistance followed by Group C. Group A showed the least fracture resistance.
  
  
  CONCLUSIONS
  The results of this study showed that filling the canals with Resilon increased the in vitro resistance to fracture of endodontically treated single canal teeth when compared with gutta percha.
authors.affiliation: Department of Conservative Dentistry and Endodontics, Subharti Dental College, Meerut-250 002, India.
authors.forename: Suheel Manzoor
authors.initials: SM
authors.lastname: Baba
authors.forename: Shiban I
authors.initials: SI
authors.lastname: Grover
authors.forename: Varsha
authors.initials: V
authors.lastname: Tyagi