Pattern of microimplant displacement during maxillary skeletal expander treatment: A cone-beam computed tomography study.

IF 2.6 3区医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE

Korean Journal of Orthodontics Pub Date : 2023-09-25 Epub Date: 2023-09-05 DOI:10.4041/kjod23.056

Ney Paredes, Ausama Gargoum, Ramon Dominguez-Mompell, Ozge Colak, Joseph Bui, Tam Duong, Maya Giannetti, Fernanda Silva, Kendra Brooks, Won Moon

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引用次数: 0

Abstract

Objective: To analyze the microimplant (MI) displacement pattern on treatment with a maxillary skeletal expander (MSE) using cone-beam computed tomography (CBCT).

Methods: Thirty-nine participants (12 males and 27 females; mean age, 18.2 ± 4.2 years) were treated successfully with the MSE II appliance. Their pre- and post-expansion CBCT data were superimposed. The pre- and post-expansion anterior and posterior inter-MI angles, neck and apical inter-MI distance, plate angle, palatal bone thickness at the MI positions, and suture opening at the MI positions were measured and compared.

Results: The jackscrew plate was slightly bent in both anterior and posterior areas. There was no significant difference in the extent of suture opening between the anterior and posterior MIs (p > 0.05). The posterior MI to hemiplate line was greater than that anteriorly (p < 0.05). The apical distance between the posterior MIs was greater than that anteriorly (p < 0.05). The palatal thickness at the anterior MIs was significantly greater than that posteriorly (p > 0.01).

Conclusions: In the coronal plane, the angulation between the anterior MIs in relation to the jackscrew plate was greater than that between the posterior MIs owing to the differential palatal bone thickness.

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上颌骨扩张器治疗期间微型植入物移位模式：锥形束计算机断层扫描研究。

目的：利用锥形束计算机断层扫描（CBCT）分析上颌骨扩张器（MSE）治疗微种植体（MI）的移位模式。方法：39名参与者（12名男性和27名女性；平均年龄，18.2±4.2岁）成功使用MSE II矫治器治疗。他们的扩张前和扩张后CBCT数据被叠加在一起。测量并比较扩张前后MI前角和后角、颈部和心尖MI间距离、钢板角度、MI位置的腭骨厚度以及MI位置的缝合口。结果：螺旋钢板前后两侧均有轻微弯曲。前部和后部MI之间的缝合开口范围没有显著差异（p>0.05）。后部MI至半板线大于前部（p<0.05）。后部MIs之间的顶端距离大于前部（p>0.05），前部MIs处的腭厚度显著大于后部（p>0.05）结论：在冠状面上，由于腭骨厚度的差异，前部MI与螺旋钢板之间的角度大于后部MI之间的角度。

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

Korean Journal of Orthodontics DENTISTRY, ORAL SURGERY & MEDICINE-

CiteScore

3.50

自引率

10.50%

发文量

审稿时长

>12 weeks

期刊介绍： The Korean Journal of Orthodontics (KJO) is an international, open access, peer reviewed journal published in January, March, May, July, September, and November each year. It was first launched in 1970 and, as the official scientific publication of Korean Association of Orthodontists, KJO aims to publish high quality clinical and scientific original research papers in all areas related to orthodontics and dentofacial orthopedics. Specifically, its interest focuses on evidence-based investigations of contemporary diagnostic procedures and treatment techniques, expanding to significant clinical reports of diverse treatment approaches. The scope of KJO covers all areas of orthodontics and dentofacial orthopedics including successful diagnostic procedures and treatment planning, growth and development of the face and its clinical implications, appliance designs, biomechanics, TMJ disorders and adult treatment. Specifically, its latest interest focuses on skeletal anchorage devices, orthodontic appliance and biomaterials, 3 dimensional imaging techniques utilized for dentofacial diagnosis and treatment planning, and orthognathic surgery to correct skeletal disharmony in association of orthodontic treatment.