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International Journal of Recent Trends in Science and Technology, ISSN 2277-2812 E-ISSN: 2249-8109

Volume 10, Issue 1, February 2014 pp 74-81

Research Article

A Comparative Evaluation of the Frictional Resistance between Stainless Steel, TMA and Low Friction TMA Orthodontic Archwires –  An In-Vitro Study

P. Premanand¹, S. Saravana Kumar²

¹Associate Professor and Head, Department of Dentistry, Chennai Medical college Hospital and Research centre (SRM Group)

Irungalur, Manachanallur (T.K), Trichy - 621105, Tamil Nadu, INDIA.

²Associate Professor, Department of Orthodontics and Dentofacial Orthopedics, Chettinad Dental College and Research Institute

Academic Editor : Dr. Aher K.R.

Aim: To understand the frictional forces between the orthodontic brackets and orthodontic wires and to evaluate the frictional resistance of different orthodontic wires. Materials and method: The test was divided into six groups comprising of fifteen samples each. Group I - stainless steel wires, Group II - TMA wires, Group III- low friction TMA wires, Group IV - colored low friction TMA wires aqua, Group V - colored low friction TMA wires purple, Group VI - colored low friction TMA wires honey dew. The measurements of friction between bracket and arch wire were done with the Instron Universal testing machine (model no.4701). The results were subjected to statistical analysis. Results: On analyzing the mean values of Groups I to VI it was clearly evident that the Group II (TMA) has the maximum frictional resistance and Group VI (colored low friction TMA - honey dew) has the lowest frictional resistance. Conclusion: The frictional resistance is highest in TMA, The frictional resistance is lowest in colored low friction TMA honeydew, and the frictional resistance of colored low friction TMA aqua is similar to that of stainless steel.