Effect of Saliva on Load-Deflection Characteristics of Superelastic Nickel-Titanium Orthodontic Wires
| Autor: | T, Hosseinzadeh Nik, H, Ghadirian, M Nili, Ahmadabadi, T, Shahhoseini, M, Haj-Fathalian |
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| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: | |
| Zdroj: | Journal of Dentistry of Tehran University of Medical Sciences, Vol 9, Iss 4, Pp 271-279 (2012) Frontiers in Dentistry, Vol 9, Iss 4 (2012) Journal of Dentistry (Tehran, Iran) |
| ISSN: | 2008-2185 |
| Popis: | Statement of Problem: Most published results about the features of NiTi wires are based on the mechanical laboratory tests in a dry environment.Purpose of Study: The purpose of this study was to investigate the effect of saliva on load-deflection characteristics of superelastic NiTi wires.Materials and Methods: In this experimental study, 15 wires of three kinds of NiTi wires (Sentalloy, Force I and Truflex) were prepared; five of them were tested in their as-received condition to provide baseline information and the rest were divided into two groups of five. Half of them were put inside artificial saliva, and the other half outside. After one month, 3-point bending test was done in a dental arch model and data from selected points on the unloading phase of the generated graphs were used for statistical analysis.Results: The load values of Sentalloy were lower than the load values of Force I and Truflex significantly. The load values of Truflex and Force I after one month exposed to artificial saliva decreased significantly but Sentalloy was not affected significantly. The plateau gap values between new wires and wires that were inside and outside of saliva were not significantly different and saliva did not affect it.Conclusion: Saliva decreased the load of Force I and Truflex significantly, but it did not have a statistical significant effect on Sentalloy |
| Databáze: | OpenAIRE |
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