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CC BY-NC-ND 4.0 · European Journal of General Dentistry 2012; 1(02): 78-84
DOI: 10.4103/2278-9626.103381
Original Article

Effect of sodium bicarbonate air abrasive polishing on resistance to sliding during tooth alignment and leveling: An in vitro study

Jorge C. B. L. Filho
Dentistry Graduate Program, Residency in Orthodontics
,
Andressa V. Consolmagno
1   Undergrduate Dentistry Program
,
Cristiano M. de Araújo
Dentistry Graduate Program, Residency in Orthodontics
,
Marcel D. Brunet
Dentistry Graduate Program, Residency in Orthodontics
,
Edvaldo A. R. Rosa
2   Xenobiotics Research Unit, Pontifical Catholic University of Paraná
,
Orlando M. Tanaka
3   Dentistry Graduate Program - Orthodontics, Brazil
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Abstract

Objective: The aim of this in vitro study was to evaluate the Resistance to Sliding (RS) provided by metallic brackets and 3 types of orthodontic wires (TMA, SS and NiTi), before and after the use of sodium bicarbonate airborne particle abrasion, in an experimental model with 3 non leveled brackets. Materials and Methods: The bicarbonate airborne abrasion was applied perpendicularly to the bracket slots at a distance of 2 mm, for 5 seconds (T2) and 10 seconds (T3) on each bracket slot. In a universal testing machine, the wires were pulled through a set of 3 non leveled brackets at a cross head speed of 50 mm/min for a distance of 10 mm, and static and kinetic friction readings were registered at T1 (no airborne abrasion), T2 and T3. Results: For all tested wires, a significant RS increase between T1 and T3 (P<0.001) was seen. For SS and TMA wires, there was a statistically significant RS increase between T1 and T2 (P<0.001). Between T2 and T3, RS increase was significant for TMA (P<0.001) and NiTiwires (P<0.05). Conclusions: Sodium bicarbonate air abrasive polishing during orthodontic treatment is not recommended, once this procedure promoted a significant RS increase between the metallic brackets and all the three types of wires tested.

Keywords

Air abrasion - friction - orthodontics


Publication History

Article published online:
01 November 2021

© 2012. European Journal of General Dentistry. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/.)

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