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Dentistry Commons

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Western University

2021

Bending resistance

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Full-Text Articles in Dentistry

Evaluation Of Cyclic Fatigue And Bending Resistance Of Coronal Preflaring Niti File Manufactured With Different Heat Treatments, Soram Oh, Su Young Moon, Antonis Chaniotis, Eugenio Pedullá, Adel Saeed Al-Ghamdi, Fawzi Ali Al-Ghamdi, Ayman Omar Mandorah, Hiran Perinpanayagam, Kee Yeon Kum, Ove A. Peters, Seok Woo Chang Aug 2021

Evaluation Of Cyclic Fatigue And Bending Resistance Of Coronal Preflaring Niti File Manufactured With Different Heat Treatments, Soram Oh, Su Young Moon, Antonis Chaniotis, Eugenio Pedullá, Adel Saeed Al-Ghamdi, Fawzi Ali Al-Ghamdi, Ayman Omar Mandorah, Hiran Perinpanayagam, Kee Yeon Kum, Ove A. Peters, Seok Woo Chang

Dentistry Publications

Coronal preflaring NiTi files should possess proper hardness, resistance to fracture and flexibility. This study compared the bending resistance and cyclic fatigue resistance of three orifice preflaring NiTi files. HyFlex EDM Orifice opener (#25/12), HyFlex CM (#25/08) and One Flare (#25/09) were tested (n = 46/instrument). Bending resistance was assessed with the stress when perpendicular displacement was applied to a 3 mm point from the file tip, and was performed at either room temperature (RT, n = 10) or body temperature (BT, n = 10). Cyclic fatigue resistance was tested with an artificial ceramic root canal at RT (n = …