{"title":"比较不同尺寸的超弹性镍钛弓丝在固定正畸治疗初期的矫治效率:单中心双盲随机临床试验。","authors":"","doi":"10.1016/j.ajodo.2024.04.003","DOIUrl":null,"url":null,"abstract":"<div><h3>Introduction</h3><p><span>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 </span>orthodontic treatment.</p></div><div><h3>Methods</h3><p>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.</p></div><div><h3>Results</h3><p>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 (<em>P</em> = 0.91), whereas time exhibited significance as expected (<em>P</em> <0.001). Furthermore, the interaction between wire type and time was not significant (<em>P</em> = 0.93). The time-adjusted estimated difference between 0.014-in and 0.012-in was −0.49 (95% confidence interval, −2.83 to 1.85; <em>P</em> = 0.68). The time-adjusted estimated difference between 0.016-in and 0.012-in was −0.45 (95% confidence interval, −2.95 to 2.05; <em>P</em> = 0.72). No harm was observed.</p></div><div><h3>Conclusions</h3><p>The clinical performance of 3 different sizes of NiTi archwires was similar. In addition, 0.014-in and 0.016-in NiTi archwires demonstrated better performances in aligning any irregularities because of a greater number of wire deformations in the 0.012-in group.</p></div><div><h3>Registration</h3><p>IR.TBZMED.REC.1395.1039.</p></div><div><h3>Protocol</h3><p>The protocol was not published before trial commencement.</p></div><div><h3>Funding</h3><p>None.</p></div>","PeriodicalId":50806,"journal":{"name":"American Journal of Orthodontics and Dentofacial Orthopedics","volume":null,"pages":null},"PeriodicalIF":2.7000,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"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\",\"authors\":\"\",\"doi\":\"10.1016/j.ajodo.2024.04.003\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><h3>Introduction</h3><p><span>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 </span>orthodontic treatment.</p></div><div><h3>Methods</h3><p>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.</p></div><div><h3>Results</h3><p>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 (<em>P</em> = 0.91), whereas time exhibited significance as expected (<em>P</em> <0.001). Furthermore, the interaction between wire type and time was not significant (<em>P</em> = 0.93). The time-adjusted estimated difference between 0.014-in and 0.012-in was −0.49 (95% confidence interval, −2.83 to 1.85; <em>P</em> = 0.68). The time-adjusted estimated difference between 0.016-in and 0.012-in was −0.45 (95% confidence interval, −2.95 to 2.05; <em>P</em> = 0.72). No harm was observed.</p></div><div><h3>Conclusions</h3><p>The clinical performance of 3 different sizes of NiTi archwires was similar. In addition, 0.014-in and 0.016-in NiTi archwires demonstrated better performances in aligning any irregularities because of a greater number of wire deformations in the 0.012-in group.</p></div><div><h3>Registration</h3><p>IR.TBZMED.REC.1395.1039.</p></div><div><h3>Protocol</h3><p>The protocol was not published before trial commencement.</p></div><div><h3>Funding</h3><p>None.</p></div>\",\"PeriodicalId\":50806,\"journal\":{\"name\":\"American Journal of Orthodontics and Dentofacial Orthopedics\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.7000,\"publicationDate\":\"2024-08-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"American Journal of Orthodontics and Dentofacial Orthopedics\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0889540624001410\",\"RegionNum\":2,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"DENTISTRY, ORAL SURGERY & MEDICINE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"American Journal of Orthodontics and Dentofacial Orthopedics","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0889540624001410","RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"DENTISTRY, ORAL SURGERY & MEDICINE","Score":null,"Total":0}
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
Introduction
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.
Methods
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.
Results
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 <0.001). Furthermore, the interaction between wire type and time was not significant (P = 0.93). The time-adjusted estimated difference between 0.014-in and 0.012-in was −0.49 (95% confidence interval, −2.83 to 1.85; P = 0.68). The time-adjusted estimated difference between 0.016-in and 0.012-in was −0.45 (95% confidence interval, −2.95 to 2.05; P = 0.72). No harm was observed.
Conclusions
The clinical performance of 3 different sizes of NiTi archwires was similar. In addition, 0.014-in and 0.016-in NiTi archwires demonstrated better performances in aligning any irregularities because of a greater number of wire deformations in the 0.012-in group.
Registration
IR.TBZMED.REC.1395.1039.
Protocol
The protocol was not published before trial commencement.
期刊介绍:
Published for more than 100 years, the American Journal of Orthodontics and Dentofacial Orthopedics remains the leading orthodontic resource. It is the official publication of the American Association of Orthodontists, its constituent societies, the American Board of Orthodontics, and the College of Diplomates of the American Board of Orthodontics. Each month its readers have access to original peer-reviewed articles that examine all phases of orthodontic treatment. Illustrated throughout, the publication includes tables, color photographs, and statistical data. Coverage includes successful diagnostic procedures, imaging techniques, bracket and archwire materials, extraction and impaction concerns, orthognathic surgery, TMJ disorders, removable appliances, and adult therapy.