Evaluation of efficacy of utility arch with inter-maxillary elastics for treating skeletal deep bite with retroclined upper incisors in the mixed dentition: a clinical randomized controlled trial.

IF 3 2区医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE

Angle Orthodontist Pub Date : 2023-02-03 DOI:10.2319/072722-520.1

Danya Hassan Alsawaf, Nada Rajah

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引用次数: 0

Abstract

Objectives: To investigate the effectiveness of utility arch (UA) with inter-maxillary elastics compared with fixed anterior bite plane (FABP) for treating deep bite in brachy-facial children.

Materials and methods: This was a single-center, randomized controlled trial. Participants were children aged between 9 and 12 years with deep bite and a hypodivergent skeletal pattern. The sample was divided into the following two groups: (1) a UA group that was composed of patients with UAs with posterior inter-maxillary elastics and (2) an FABP group as a control. Outcomes were skeletal and dentoalveolar variables on cephalometric X-rays.

Results: A total of 28 patients (13 boys, 15 girls) with a mean age of 10.66 years were enrolled. The treatment duration was 8.16 months in the UA group and 7.22 months in the FABP group. After treatment, the angle between the anterior cranial base and the mandible in the vertical plane increased significantly (P = .000) in both groups (about 1.97 degrees in the UA group and 2.75 degrees in the FABP group). Overbite decreased significantly in both groups (-2.1 m in the UA group and -3.64 m in the FABP group), but it decreased less significantly in the UA group than in the FABP group. The upper incisors flared significantly after treatment with both appliances (6.6 degrees in the UA group and 5.9 degrees in the FABP group).

Conclusions: Treatment of deep bite in children with a horizontal growth pattern by each of the appliances used in this study is effective. The mandible showed minor, significant backward rotation after treatment. The overbite decreased less in the UA group than in the FABP group.

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用颌间牵引器治疗混合牙列上切牙后倾骨骼深咬合的功效评估：临床随机对照试验。

目的研究在治疗畸形牙儿童的深咬合时，使用颌间扩弓器（UA）和固定前咬合平面（FABP）的有效性：这是一项单中心随机对照试验。参加者为 9 至 12 岁的深咬合和骨骼发育不良的儿童。样本被分为以下两组：(1) UA 组，由使用后下颌间矫治器的 UA 患者组成；(2) FABP 组作为对照。结果是头颅X光片上的骨骼和牙槽骨变量：共有 28 名患者（13 名男孩，15 名女孩）接受了治疗，平均年龄为 10.66 岁。UA 组的治疗时间为 8.16 个月，FABP 组为 7.22 个月。治疗后，两组患者的前颅底与下颌骨在垂直面上的夹角均明显增加（P = .000）（UA 组约为 1.97 度，FABP 组约为 2.75 度）。两组的过咬合均有明显下降（UA 组为-2.1 米，FABP 组为-3.64 米），但 UA 组的下降幅度小于 FABP 组。使用两种矫治器治疗后，上切牙都明显外翻（UA组为6.6度，FABP组为5.9度）：结论：本研究中使用的每种矫治器都能有效治疗水平生长模式儿童的深咬合。治疗后，下颌骨有轻微、明显的后旋。UA组比FABP组的咬合过度减少。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Angle Orthodontist 医学-牙科与口腔外科

CiteScore

6.40

自引率

5.90%

发文量

审稿时长

3 months

期刊介绍： The Angle Orthodontist is the official publication of the Edward H. Angle Society of Orthodontists and is published bimonthly in January, March, May, July, September and November by The EH Angle Education and Research Foundation Inc. The Angle Orthodontist is the only major journal in orthodontics with a non-commercial, non-profit publisher -- The E. H. Angle Education and Research Foundation. We value our freedom to operate exclusively in the best interests of our readers and authors. Our website www.angle.org is completely free and open to all visitors.