Evaluation of friction of stainless steel wires after clinical use

Sapna Pritesh Ganna; Charchil Narendrakumar Patel; Deep Shailesh Shah; Rajani Kalla; Priteshkumar Sureshchand Ganna; Nisarg Jesangbhai Chaudhary

doi:10.4103/INJO.INJO_45_20

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ORIGINAL ARTICLE

Year : 2021 \| Volume : 9 \| Issue : 1 \| Page : 5-7

Evaluation of friction of stainless steel wires after clinical use Sapna Pritesh Ganna¹, Charchil Narendrakumar Patel², Deep Shailesh Shah³, Rajani Kalla⁴, Priteshkumar Sureshchand Ganna⁵, Nisarg Jesangbhai Chaudhary⁶ ¹ Department of Periodontics, Ahmedabad Dental College and Hospital, Bhadaj, Gujarat, India ² Department of Oral and Maxillofacial Surgery, Siddhpur Dental College and Hospital, Siddhpur, Dist Patan, Gujarat, India ³ Department of Oral Medicine and Radiology, Siddhpur Dental College and Hospital, Siddhpur, Dist Patan, Gujarat, India ⁴ Department of Prosthodontics, RUHS College of Dental Sciences, Jaipur, Rajasthan, India ⁵ Department of Orthodontics and Dentofacial Orthopedics, Siddhpur Dental College and Hospital, Siddhpur, Dist Patan, Gujarat, India ⁶ Department of Public Health Dentistry, Siddhpur Dental College and Hospital, Siddhpur, Dist Patan, Gujarat, India Correspondence Address: Dr. Sapna Pritesh Ganna Department of Periodontics, Ahmedabad Dental College and Hospital, A-1/809, Anand Laxmi Apartment Near Railway Crossing, Behind Shanidev Temple, Shahibaug, Ahmedabad, Gujarat. India Source of Support: None, Conflict of Interest: None DOI: 10.4103/INJO.INJO_45_20

Aims: To investigate the changes that occur in stainless steel (SS) orthodontic arch wires before and just after clinical use for eight weeks. To evaluate changes in the wire surface roughness, and the friction produced during sliding. Materials and Methods: Eight candidates were selected for this study. The 0.022″ × 0.028″ MBT first premolar brackets were bonded on the first premolar, second premolar, and first molar of the maxillary arch on both the sides, and straight, passive 0.019″ × 0.025″ SS wire was ligated with elastic modules. After eight weeks, the wires were removed and friction and roughness were evaluated. Results: Results showed a significant increase in the surface roughness from 0.644 Ra to 2.018 Ra after clinical use; friction of the wire too increased from 0.7N to 2.52N after clinical use. P values for both were <0.0001, which showed that the changes were very highly significant. Conclusion: The results concluded that the increase in the friction and roughness values would affect the sliding of the wire and increase the treatment duration.



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