Cyclic Fatigue Resistance of One Shape Nickel-Titanium Instruments Used in Interrupted Rotation
Journal Title: Scholars Journal of Dental Sciences - Year 2016, Vol 3, Issue 12
Abstract
Abstract: The present study aimed to evaluate the effect of interruption on the cyclic fatigue of One Shape rotary NiTi instruments. 10 One Shape 25.06, 10 One Shape Apical 1 30.06 and 10 One Shape Apical 2 37.06 were included to the study. The instruments were subjected to dynamic cyclic fatigue test in continuous and interrupted rotation. In Group 1 the instruments were operated in continuous rotation and in Group 2 the instruments were stopped for 1 s in every 10 seconds. The lengths of the fractured tips were also measured and fractured surfaces were examined under scanning electron microscope. Data were evaluated using one-way ANOVA and Tukey post-hoc tests in SPSS software with 5% significance level. The interrupted rotation reduced the cyclic fatigue resistance of One Shape 25.06 significantly (P < 0.05). No statistically significant reduction was observed in One Shape Apical 1 and 2 instruments (P > 0.05). Interruption of rotation should be noted as a decreasing factor for the cyclic fatigue resistance of One Shape 25.06 NiTi rotary instrument. Keywords: Interrupted rotation, cyclic fatigue, nickel-titanium rotary instruments
Authors and Affiliations
Cangül KESKİN, Murat DEMİRAL, Uğur İNAN
Keywords
Related Articles
- EP ID EP374153
- DOI -
- Views 61
- Downloads 0
Volumetric Analysis of Frontal Sinuses by Using Cone Beam Computed Tomography in South Indian Population
Abstract: Frontal sinuses are air filled cavities which are mostly paired and lobulated in shape. They are located posterior to the superciliary arches in between the two bony tables of frontal bone. They are usually sym...
Management of Peri-Implantitis with PRF as a Sole Grafting Material: A Case Report
Abstract: PRF was used as a sole grafting material for surgically treatment of a 8 mm pocket around an implant that had 3 threads of bone loss, BoP, and exudate, and the patient was followed up for 1 year. Surgical trea...
Geriatric Care for Cancer Patients with Oral Health Problem
Abstract: The incidence of cancer increases with advanced age and as the world population ages, clinicians will be faced with a growing number of older patients with cancer as cancer patient’s ages, they are put at risk...
Correlation between clinical and histopathologic findings 0f oral lesions
Achieving the right differential diagnosis is the most important and most difficult step for proper treatment and the realization of the best long-term prognosis. Several types of oral lesions with similar appearance dem...
Rehabilitation of Hemimaxillectomy Defect due to Orofacial Mucormycosis Bilal Ahmed
Abstract: Prosthodontic rehabilitation of congenital or acquired maxillofacial defects is always a challenging clinical scenario. These defects pose a major physiological and psychological threat not only to the patient...