Evaluation of the alignment efficiency of nickel-titanium and copper-nickel-titanium archwires in patients undergoing orthodontic treatment over a 12-week period: A single-center, randomized controlled clinical trial.

Autor:	Aydın B; Department of Orthodontics, Faculty of Dentistry, Suleyman Demirel University, Isparta, Turkey., Şenışık NE; Department of Orthodontics, Faculty of Dentistry, Suleyman Demirel University, Isparta, Turkey., Koşkan Ö; Departments of Animal Science, Genetics, and Biometrics, Faculty of Agriculture, Suleyman Demirel University, Isparta, Turkey.
Jazyk:	angličtina
Zdroj:	Korean journal of orthodontics [Korean J Orthod] 2018 May; Vol. 48 (3), pp. 153-162. Date of Electronic Publication: 2018 Apr 20.
DOI:	10.4041/kjod.2018.48.3.153
Abstrakt:	Objective: The aim of this trial was to compare the alignment efficiency and intermaxillary arch dimension changes of nickel-titanium (NiTi) or copper-nickel-titanium (CuNiTi) round archwires with increasing diameters applied sequentially to the mandibular arch. Methods: The initial alignment phase of fixed orthodontic treatment with NiTi or CuNiTi round archwires was studied in a randomly allocated sample of 66 patients. The NiTi group comprised 26 women, 10 men, and the CuNiTi (27℃) group comprised 20 women, 10 men. The eligibility criteria were as follows: anterior mandibular crowding of minimum 6 mm according to Little's Irregularity Index (LII), treatment requiring no extraction of premolars, 12 to 18 years of age, permanent dentition, skeletal and dental Class I malocclusion. The main outcome measure was the alignment of the mandibular anterior dentition; the secondary outcome measure was the change in mandibular dental arch dimensions during 12 weeks. Simple randomization (allocation ratio 1:1) was used in this single-blind study. LII and mandibular arch dimensions were measured on three-dimensional digital dental models at 2-week intervals. Results: No statistically significant difference was observed between NiTi and CuNiTi according to LII ( p > 0.05). Intercanine and intermolar arch perimeters increased in the CuNiTi group ( p < 0.001). Inter-first premolar width showed a statistically significant interaction in week × diameter × application ( p < 0.05). Conclusions: The effects of NiTi and CuNiTi round archwires were similar in terms of their alignment efficiency. However, the intercanine and intermolar arch perimeters, and the inter-first premolar width changes differed between groups. Competing Interests: CONFLICTS OF INTEREST: No potential conflict of interest relevant to this article was reported.
Databáze:	MEDLINE
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