Evaluation of factors related to morphological masseter muscle changes after preoperative orthodontic treatment in female patients with skeletal class III dentofacial deformities

被引：5

作者：

Jokaji, Rei ^{[1
]}

Ooi, Kazuhiro ^{[1
]}

Yahata, Tetsutaro ^{[2
]}

Nakade, Yusuke ^{[3
]}

Kawashiri, Shuichi ^{[1
]}

机构：

[1] Kanazawa Univ, Grad Sch Med Sci, Dept Oral & Maxillofacial Surg, 13-1 Takaramachi, Kanazawa, Ishikawa 9208641, Japan

[2] Kanazawa Univ Hosp, Dept Phys Med & Rehabil, 13-1 Takaramachi, Kanazawa, Ishikawa 9208641, Japan

[3] Kanazawa Univ Hosp, Dept Clin Lab, 13-1 Takaramachi, Kanazawa, Ishikawa, Japan

来源：

BMC ORAL HEALTH | 2022年 / 22卷 / 01期

关键词：

Morphological changes of masseter muscle; Preoperative surgical orthodontic treatment; Skeletal class III dentofacial deformities; MASTICATORY MUSCLES; MANDIBULAR PROGNATHISM; ISOFORMS; FIBERS; FORCE;

D O I：

10.1186/s12903-022-02319-7

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

Background The purpose of the current study was to investigate factors related to morphological changes in the masseter muscle after preoperative orthodontic treatment in patients with skeletal class III dentofacial deformities for analysis of muscle changes and malocclusions. Methods Twenty female patients with dentofacial deformities were included in the study. Computed tomography was performed before and after preoperative orthodontic treatment, and the lengths, widths, and cross-sectional areas of the masseter muscles were measured. Changes in these parameters were evaluated, and factors related to changes in masseter muscle area after preoperative orthodontic treatment were analyzed. Results The lengths, widths, and areas of masseter muscles were significantly smaller after preoperative orthodontic treatment. Smaller masseter muscle area was significantly associated with changes in overbite and pretreatment values of SNA angle. Conclusions Atrophy of the masseter muscle during preoperative orthodontic treatment was greater in patients with increased open bite due to improved dental compensation in patients with skeletal class III dentofacial deformities with maxillary retraction.

引用

页数：7