Abstract

Aim: To evaluate, the degree of debris accumulation on stainless steel (SS) archwires after prolonged intraoral use and to evaluate, the effect of these debris on the frictional resistance of stainless (SS) archwires. To compare, the effectiveness of two commonly used archwire cleaning methods to remove these accumulated debris.

Objectives: To evaluate, whether the accumulation of debris on the surface of the stainless steel (SS) orthodontic archwires has any effect on its frictional resistance and to evaluate, whether the two commonly used archwire cleaning methods are helpful in removing these accumulated debris.

Materials and Methods: The samples were classified into 4 major groups: T₀, T1_SWS, T2_US, Tc_control respectively. Group T₀, T1 consist of 10 hemi-sectioned archwire segments which were tested for frictional resistance and debris accumulation without cleaning and post- cleaning for 1 minute and that of T2 with Ultrasound cleaning for 15 minutes. Tc consist of involved 20 non-cleansed control hemi-sectioned archwire segments obtained from patients from above mentioned T1 and T2.

Results: Median average debris of T1 and T2 did not differ significantly compared to average debris at T₀ but Average debris of Tc differed significantly compared to average debris at T0. Also, Average debris T1 differed significantly compared with average debris of T2, debris of T1 and t2 differed significantly with debris of T₀.

Conclusion: Increased levels of frictional resistance between archwire and bracket surfaces during sliding mechanics phase of orthodontic treatment were effectively reverted back after cleaning the orthodontic archwire by rubbing with steel wool sponge for 1 minute or through immersion in an ultrasound cleaning machine for 15 minutes.

Keywords: Intraoral Ageing; Debris; Frictional Resistance; Orthodontic Arch Wire

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