Torsional Resistance and Cyclic Fatigue Life of a New Single-File Reciprocating Instrument Wave One Gold
Journal Title: Scholars Journal of Dental Sciences - Year 2018, Vol 5, Issue 6
Abstract
Abstract: The present study aimed to evaluate the bending resistance and cyclic fatigue fracture resistance of a new single-file reciprocating instrument called WaveOne Gold. WaveOne instruments were used as references for comparison. 28files, 25-mm NiTi instruments (WaveOne Primary and WaveOne Gold Primary) were tested. Flexibility was determined by applying 45° bending tests using a universal testing machine (n=10). A custom-made device was used during cyclic fatigue test (n=10), comprising a stainless steel artificial canal measuring 1.4 mm in diameter, 19 mm in total length with an 86° angle and 6 mm radius of curvature.Statistical analysis was performed using one-way analysis of variance. Post hoc pair-wise comparisons were performed using Tukey’s test for multiple comparisons (P<0.05). Waveone gold resulted in significantly higher torsional resistance when compared with the corresponding Waveone primary file system (P<0.05) Waveone resulted in significantly higher cyclic fatigue resistance when compared with the corresponding Waveone gold primary file system (P<0.05).The cyclic fatigue resistance of Waveone file system was better than of the Waveone gold file system. On other hand the torsional resistance of Waveone gold better than of the Waveone files system.
Authors and Affiliations
Howaida Abdulmuniem, Esraa Khalifah
Keywords
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