Comparison of alignment efficiency of different sizes of superelastic nickel-titanium archwires in the initial phase of fixed orthodontic treatment: A single-center, double-blind randomized clinical trial

This 3-arm parallel, double-blind study aimed to evaluate the alignment efficiency of 3 different diameters of superelastic nickel-titanium (NiTi) archwires during the initial phase of orthodontic treatment. Ninety-three patients with nonextraction treatment in the mandibular arch (using 0.022-in Ro...

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Bibliographic Details
Published in:American journal of orthodontics and dentofacial orthopedics 2024-08, Vol.166 (2), p.104-111
Main Authors: Tahamtan, Shabnam, Hajihosseini, Morteza, Sohrabi, Aydin
Format: Article
Language:English
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Summary:This 3-arm parallel, double-blind study aimed to evaluate the alignment efficiency of 3 different diameters of superelastic nickel-titanium (NiTi) archwires during the initial phase of orthodontic treatment. Ninety-three patients with nonextraction treatment in the mandibular arch (using 0.022-in Roth prescription brackets) were randomly allocated into 3 groups: 0.012-in NiTi (group 1), 0.014-in NiTi (group 2), and 0.016-in NiTi (group 3). The alignment change was measured using the modified Little’s irregularity index before archwire placement and every 4 weeks. The alignment efficiency of the 3 groups was analyzed. Ninety patients were analyzed (group 1: n = 29, group 2: n = 31, and group 3: n = 30; overall mean age, 16.6 years). The overall Wald test analysis revealed that wire type was not statistically significant (P = 0.91), whereas time exhibited significance as expected (P 
ISSN:0889-5406
1097-6752
1097-6752
DOI:10.1016/j.ajodo.2024.04.003