Comparative evaluation of fracture resistance of structurally compromised canals restored with different dowel methods

Journal of Prosthodontics : Official Journal of the American College of Prosthodontists
Vivek AggarwalSarita Kohli

Abstract

The objective of this in vitro study was to evaluate and compare the fracture resistance and fracture mode of endodontically treated teeth with wide root canals restored with various dowel methods. Fifty human uniradicular mandibular premolar teeth were decoronated and endodontically treated. The canals were widened with diamond points. The specimens were divided into five groups on the basis of type of dowel method used: conventional custom-made cast metal dowel; single glass fiber-reinforced resin dowel; glass fiber-reinforced resin dowel with accessory fiber dowels; relined glass fiber-reinforced resin dowel; and dowels formed with the help of polyethylene fiber ribbon-reinforced resin composite. Specimens were restored with indirect composite crowns, and 150,000 cycles of cyclic loading were applied. The specimens were loaded to test the fracture resistance and fracture mode (repairable and nonrepairable). The cast metal dowel groups had the highest fracture resistance but showed nonrepairable fracture in 90% of specimens. Cast metal dowels had the highest fracture resistance but led to nonrepairable fracture while restoring the wide root canals under cyclic loading. Specimens restored with fiber dowels, accessory dowels, r...Continue Reading

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Citations

Mar 1, 2016·Australian Dental Journal·G Liddelow, G Carmichael
Sep 12, 2015·Dental Traumatology : Official Publication of International Association for Dental Traumatology·Poornima RameshRemya Premkumar
Mar 24, 2006·Journal of Endodontics·Charles H StuartThomas J Beeson
Nov 14, 2006·The Journal of Prosthetic Dentistry·Lazaro Augusto de Almeida GoncalvesManoel Damiao Sousa Neto
May 16, 2006·Dental Materials : Official Publication of the Academy of Dental Materials·Xin WuRoger J Smales
Feb 24, 2009·The Journal of Prosthetic Dentistry·John D McLarenNeville J McDonald
Dec 17, 2016·Brazilian Dental Journal·Regina Maria Helen-Cot MarcosCarla Castiglia Gonzaga
Dec 4, 2014·Journal of Applied Oral Science : Revista FOB·Ana Maria Estivalete MarchionattiOsvaldo Bazzan Kaizer
Sep 16, 2020·European Journal of Dentistry·Camila Ferreira SilvaPaulo Cesar Freitas Santos-Filho
Dec 30, 2021·Journal of Esthetic and Restorative Dentistry : Official Publication of the American Academy of Esthetic Dentistry ... [et Al.]·Ravivan Iemsaengchairat, Juthatip Aksornmuang

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