Comparison of the effects of total arch intrusion treatment in adolescents and adults: A pilot study.

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

American Journal of Orthodontics and Dentofacial Orthopedics Pub Date : 2025-09-04 DOI:10.1016/j.ajodo.2025.05.010

Hye-Young Sim, Jung-Sub An, Min-Ho Jung

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引用次数: 0

Abstract

Introduction: This study aimed to examine the effectiveness of total arch intrusion (TAI) treatment in patients with skeletal Class II malocclusion with retruded mandible and compare the treatment changes between adolescents and adults.

Methods: We retrospectively analyzed cephalometric radiographs of 30 patients who underwent TAI using miniscrews. Growing adolescent patients were classified as group 1 (G1), whereas nongrowing patients were classified as group 2 (G2). There were 16 patients in G1 and 14 in G2, and the average ages at the start of treatment were 13.2 years and 27.8 years, respectively. Pretreatment and posttreatment cephalometric measurements and changes were compared, and the correlation among these measurements was analyzed.

Results: Significant decreases were observed in mandibular plane angle (P <0.001); however, no significant difference was observed between the 2 groups. There was a significantly greater increase in SNB (P <0.05) and facial height ratio (P <0.01) and a decrease in ANB (P <0.01) in G1. The pogonion to nasion perpendicular line increased more in G1 (5.11 mm) than in G2 (3.88 mm), but this difference was not statistical significant. In correlation analysis, the mandibular plane rotation had a strong correlation with changes in Pog to N perp in G1, but there was a weak correlation in G2.

Conclusions: TAI was an effective treatment option to improve the retrognathic profile. The adolescent group showed significantly greater anteroposterior skeletal improvement and profile changes than the adult group with TAI.

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青少年和成人全足弓侵入治疗效果的比较：一项初步研究。

前言：本研究旨在探讨全弓侵入（TAI）治疗骨性ⅱ类错颌后缩的有效性，并比较青少年和成人治疗的变化。方法：回顾性分析30例使用微型螺钉行TAI的患者的头颅x线片。生长中的青少年患者分为1组（G1），未生长的青少年患者分为2组（G2）。G1组16例，G2组14例，治疗开始时平均年龄分别为13.2岁和27.8岁。比较治疗前和治疗后的头颅测量值和变化，并分析这些测量值之间的相关性。结果：下颌平面角明显减小(P)结论：TAI是一种有效的治疗方案，可以改善嵴后轮廓。青少年组明显比成人组有更大的前后骨骼改善和轮廓改变。

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

American Journal of Orthodontics and Dentofacial Orthopedics 医学-牙科与口腔外科

CiteScore

4.80

自引率

13.30%

发文量

432

审稿时长

66 days

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.