Comparison of The Tensile Strength of The Nickel-Titanium Archwires Before and After Artificial Aging

Alsattar ALsegar, Mohammed Abd

doi:10.25130/tjds.12.2.5

	Comparison of The Tensile Strength of The Nickel-Titanium Archwires Before and After Artificial Aging
Tikrit Journal for Dental Sciences
Volume 12, Issue 2, December 2024, Pages 290-295 PDF (424.98 K)
DOI: 10.25130/tjds.12.2.5
Author
Mohammed Abd Alsattar ALsegar^*
Middle Technical University, College of Health & Medical Technology/Baghdad, Iraq
Abstract
Background: Comprehensive orthodontic treatment calls for archwires with exceptional strength, excellent springiness, and a lengthy range of motion during the initial alignment stage. Due to a number of reasons that could impair their effectiveness, these archwires and other components of fixed orthodontic appliances are susceptible to deterioration or corrosion inside the oral cavity. Therefore, the aim of this study was to compare the tensile strength of new conventional superelastic nickel titanium (NiTi) archwires to those after artificial aging. Materials and methods: The total sample of 40 pieces of 0.016 inch round preformed NiTi archwire cutting into straight segments (30mm), 20 pieces of NiTi archwire as received wires which served as baseline and 20 pieces of NiTi archwire subjected to acid challenge experiment, and then subjected to the tensile strength. Results: The mean tensile strength of group A (before aging) was lower than group B (after artificial aging). The independent T Test revealed a significant difference between the groups (P <0.05). Conclusion: the NiTi archwire exhibited significantly the lowest force value at baseline, while after aging, the NiTi archwire provided the highest force value. Therefore, the NiTi archwires are more resistant to in vitro aging than at baseline condition.
Keywords
Nickel; Titanium Archwires Tensile strength

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