Becker O E, Avelar R L, Dolzan A do N, Haas O L, Scolari N, Oliveira R B de
Oral and Maxillofacial Surgery Department, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil.
Oral and Maxillofacial Surgery Department, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil; Oral and Maxillofacial Surgery Department, Faculdade Católica Rainha do Sertão, Quixadá, Brazil.
Int J Oral Maxillofac Surg. 2014 Feb;43(2):204-12. doi: 10.1016/j.ijom.2013.06.006. Epub 2013 Jul 16.
The soft tissues of the facial profile may change after skeletal movement in orthognathic surgery. The aim of this study was to evaluate and compare the differences and correlation between hard and soft tissues after double-jaw surgery in skeletal Class III subjects. Radiographs from the following time points were assessed using Dolphin Imaging software: preoperative (T0), 2-4 months postoperative (T1), and 6-12 months postoperative (T2). Eleven hard and soft tissue points of the facial profile were evaluated. The Student's t-test was used to assess the significance of differences between the time intervals; Pearson's correlation coefficient was used to assess the significance of correlation existing between these points; significance was set at P<0.05. In the sample of 58 subjects, the correlation between hard and soft tissues in the mandible was greater than in the maxilla. Similarly, the correlations only between hard tissues and only between soft tissues presented a greater correlation in the mandible. The results are similar to those found in studies on single-jaw surgery for both the maxilla and the mandible. The influence of movements in hard tissues was restricted to the soft tissues of the same jaw, although there were exceptions.
正颌外科手术中骨骼移动后，面部轮廓的软组织可能会发生变化。本研究的目的是评估和比较骨骼III类患者双颌手术后硬组织和软组织之间的差异及相关性。使用Dolphin Imaging软件评估以下时间点的X线片：术前（T0）、术后2 - 4个月（T1）和术后6 - 12个月（T2）。对面部轮廓的11个硬组织和软组织点进行了评估。采用Student's t检验评估时间间隔之间差异的显著性；Pearson相关系数用于评估这些点之间存在的相关性的显著性；显著性设定为P<0.05。在58名受试者的样本中，下颌骨硬组织与软组织之间的相关性大于上颌骨。同样，仅硬组织之间以及仅软组织之间的相关性在下颌骨中表现出更大的相关性。上颌骨和下颌骨单颌手术研究的结果与此相似。硬组织移动的影响仅限于同一颌骨的软组织，不过也有例外情况。
