Cyclic and Torsional Fatigue Resistance of XP-endo Shaper and TRUShape Instruments

Journal of Endodontics
Emmanuel João Nogueira Leal SilvaGustavo De-Deus

Abstract

The purpose of this study was to evaluate the cyclic and torsional fatigue resistance of the XP-endo Shaper (FKG Dentaire, La Chaux-de-Fonds, Switzerland) and TRUShape (Dentsply Tulsa Dental Specialties, Tulsa, OK) instruments. Twenty XP-endo Shaper (30/0.01) instruments and 20 TRUShape (30/0.06v) instruments were used. Cyclic fatigue resistance was tested by measuring the number of cycles and time to fracture in an artificial stainless steel canal with a 60° angle and a 5-mm radius of curvature (n = 10). The torque and angle of rotation at failure of new instruments (n = 10) were measured according to ISO 3630-1. The fracture surface of all fragments was examined with a scanning electron microscope. Results were statistically analyzed using the Student t test at a significance level of P < .05. The XP-endo Shaper instruments showed a significantly longer number of cycles to fracture and time to failure in seconds than the TRUShape instruments (P < .05). The XP-endo Shaper also presented a lower maximum torque load (P < .05) but a significantly higher angular rotation to fracture than TRUShape (P < .05). The XP-endo Shaper instruments showed a higher cyclic fatigue resistance and angle of rotation to fracture but lower torque t...Continue Reading

Citations

Mar 27, 2018·International Endodontic Journal·J ZupancE Schäfer
Dec 27, 2018·International Endodontic Journal·C B SantosE J N L Silva
Aug 18, 2018·International Endodontic Journal·G De-DeusE J N L Silva
Oct 27, 2018·Brazilian Oral Research·Carlos José SoaresAntheunis Versluis
Nov 18, 2018·Journal of Dental Research, Dental Clinics, Dental Prospects·Mehmet AdiguzelIsmail Ilker Pamukcu
Nov 30, 2018·Restorative Dentistry & Endodontics·Marwa M BedierYosra M Hassan
Oct 27, 2018·Brazilian Oral Research·Giulio GaviniGeorge Táccio de Miranda Candeiro
Mar 10, 2020·International Journal of Dentistry·Abdulmohsen AlfadleyAhmed Jamleh
Aug 15, 2019·Australian Endodontic Journal : the Journal of the Australian Society of Endodontology Inc·Hüseyin Sinan TopçuoğluHacer Balkaya
Dec 6, 2020·Australian Endodontic Journal : the Journal of the Australian Society of Endodontology Inc·Giusy Rita Maria La RosaEugenio Pedullà
Mar 24, 2021·Australian Endodontic Journal : the Journal of the Australian Society of Endodontology Inc·Daniel Souza CamposAlexandre Sigrist De Martin
Apr 29, 2021·Scientific Reports·Shekhar BhatiaUmer Daood
Jul 11, 2021·British Dental Journal·Faith CampbellJames Darcey
Dec 17, 2019·Journal of Endodontics·Maria de Las Nieves Perez MoralesFernando Duran-Sindreu Terol

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