Evaluation and comparison of surface characteristics of commercially available TMA wires using scanning electron microscopy and optical profilometer

Autor: Lidhiya Alexander, Pradeep Babu Kommi, Nandakumar Arani, Anoop Mathew, Anirudh Yashwant, R S Senkutvan
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Indian Journal of Dental Research, Vol 30, Iss 4, Pp 548-552 (2019)
Druh dokumentu: article
ISSN: 0970-9290
1998-3603
DOI: 10.4103/ijdr.IJDR_420_18
Popis: Aim: The aim of this study was to evaluate and compare the surface characteristics of colored titanium molybdenum alloy archwires (purple-coated TMA and honey dew-coated TMA) and the regular titanium molybdenum alloy archwires. Materials and Methods: The experiment comprised three groups, Group I – regular TMA archwires, Group II – purple-coated TMA archwires, Group III – honey dew-coated TMA wires involving 21 samples each. The surface characteristics were assessed using scanning electron microscopy and optical profilometer. Results: The results were statistically analyzed using analysis of variance wherein Group I regular TMA wires exhibited a root mean square value of 148.071 nm and a standard deviation of 9.0027 nm followed by group II (purple-coated TMA wires) which showed a root mean square value of 84.095 nm with a standard deviation of 2.6005 nm, while group III (honey dew-coated TMA wires) was found to have a root mean square value of 71.681 nm with a standard deviation of 1.4645 nm on subjecting to optical profilometry. Conclusion: The surface roughness is higher for regular TMA wire exhibiting superior characteristic of color-coated TMA wires, especially honey dew-coated TMA wires over the regular and purple-coated TMA wires. This property of the archwires details regarding its application in both sliding and frictionless mechanics in retraction phase of fixed orthodontic treatment.
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