正畸治疗前患者咬肌厚度与颌面形态的关系。

Relationship between masseter muscle thickness and maxillofacial morphology in pre-orthodontic treatment patients.

作者信息

Soyoye Olabimpe A, Otuyemi Olayinka D, Kolawole Kikelomo A, Ayoola Oluwagbemiga O

机构信息

Department of Child Dental Health, Obafemi Awolowo University Teaching Hospitals Complex, Ile-Ife, Nigeria.

Department of Child Dental Health, Obafemi Awolowo University, Ile-Ife, Nigeria.

出版信息

Int Orthod. 2018 Dec;16(4):698-711. doi: 10.1016/j.ortho.2018.09.015. Epub 2018 Oct 19.

DOI:10.1016/j.ortho.2018.09.015

PMID:30348502

Abstract

This study investigated the relationship between masseter muscle thickness and cephalometric facial parameters in pre-orthodontic treatment patients. Participants were grouped according to their vertical facial patterns into low, normal, and high angle facial patterns using standardised lateral cephalometric radiograph. Associations between the masseter muscle thickness (measured using ultrasonography) and different vertical facial patterns were analysed. Masseter muscle thickness in low angle subjects were significantly higher than the normal and high angle cases during both relaxation and contraction phases (P<0.001). Masseter muscle thickness correlated positively with Jarabak ratio and ramus thickness (R1/R2) during both phases, and negatively with LAFH, FMA, MMPA and gonial angle.

摘要

本研究调查了正畸治疗前患者咬肌厚度与头影测量面部参数之间的关系。使用标准化的头颅侧位X线片，根据垂直面部模式将参与者分为低角、正常角和高角面部模式组。分析了咬肌厚度（使用超声测量）与不同垂直面部模式之间的关联。在放松和收缩阶段，低角受试者的咬肌厚度均显著高于正常角和高角受试者（P<0.001）。在两个阶段，咬肌厚度均与Jarabak比率和升支厚度（R1/R2）呈正相关，与LAFH、FMA、MMPA和下颌角呈负相关。