牙颌面畸形治疗对咬肌厚度的影响。
Effect of treatment of dentofacial deformity on masseter muscle thickness.
作者信息
Trawitzki Luciana V V, Dantas Roberto O, Mello-Filho Francisco V, Elias-Júnior Jorge
机构信息
Department of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, University of São Paulo, Av. Bandeirantes 3900, Monte Alegre, Ribeirão Preto, SP, CEP 14048-900 Brazil.
出版信息
Arch Oral Biol. 2006 Dec;51(12):1086-92. doi: 10.1016/j.archoralbio.2006.06.004. Epub 2006 Aug 8.
OBJECTIVE
The objective of the present study was to determine the modifications in masseter muscle thickness before and after interdisciplinary orthodontic, oromyofunctional and surgical treatment of class III dentofacial skeletal deformities (DFSD).
DESIGN
Fifteen patients with class III DFSD participated in the study, denoted P1 group before the interdisciplinary treatment and P2 group (same patients) 6-8 months after surgery. Fifteen individuals with no DFSD were used as the control group. Bilateral ultrasonography (US) of the masseter muscle under resting and biting conditions was performed in the three groups.
RESULTS
There was a significant difference (P<0.01) for all muscles tested between the control, P1 and P2 groups, with greater thickness for controls, intermediate thickness for P2, and the lowest thickness for P1 in all situations evaluated.
CONCLUSION
We conclude that there was an increase in masseter muscle thickness after surgical correction of DFSD accompanied by interdisciplinary treatment, although the values were still lower than those observed in the control group.
目的
本研究的目的是确定在对Ⅲ类牙颌面骨骼畸形（DFSD）进行正畸、口肌功能和外科联合治疗前后咬肌厚度的变化。
设计
15例Ⅲ类DFSD患者参与本研究，在联合治疗前为P1组，术后6 - 8个月（同一批患者）为P2组。15名无DFSD的个体作为对照组。三组均在静息和咬合状态下对咬肌进行双侧超声检查（US）。
结果
在所有测试肌肉中，对照组、P1组和P2组之间存在显著差异（P<0.01），在所有评估情况下，对照组厚度最大，P2组厚度居中，P1组厚度最小。
结论
我们得出结论，在对DFSD进行外科矫正并联合跨学科治疗后，咬肌厚度增加，尽管其数值仍低于对照组。
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