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Abstract：
Objective This study aimed to investigate the correlation of craniofacial morphology with maxillary sinus morphology and to evaluate whether orthodontic treatment facilitates maxillary sinus enlargement in adults. Materials and methods A total of 45 adult women underwent cephalography and computed tomography before and after orthodontic treatment. All participants were classified into three groups: skeletal class I, II, and III. The average dimensions and volume of the maxillary sinus were calculated in each subgroup. Furthermore, multiple regression analysis was used to analyze the correlations of maxillary sinus dimensions with 20 cephalometric variables. Results Before treatment, the maxillary sinus width, height, depth, and volume were 32.2 ± 3.9 mm, 39.5 ± 3.8 mm, 38.6 ± 1.8 mm, and 36,179.3 ± 5,454.0 mm3 in skeletal class I, 33.9 ± 6.2 mm, 37.3 ± 3.5 mm, 38.6 ± 2.4 mm, and 34,729.8 ± 6,686.6 mm3 in skeletal class II, and 32.0 ± 4.3 mm, 41.8 ± 5.0 mm, 38.0 ± 2.8 mm, and 35,592.3 ± 10,334.3 mm3 in skeletal class III, respectively. Despite no significant differences in maxillary sinus width, depth, or volume, the height was significantly lower in the skeletal class II than in the other two. Regardless of the skeletal pattern, maxillary sinus height and volume increased considerably after treatment. Moreover, the maxillary sinus width was substantially involved in pretreatment U1 to SN and overbite and posttreatment U1 to NA and overjet. Conclusion Except for the height, the maxillary sinus dimensions were almost similar, irrespective of the skeletal classification. The posttreatment sinus height and volume were significantly greater than the pretreatment values, although the sinus width and length showed no significant changes during orthodontic treatment. This implies that orthodontic treatment may facilitate the enlargement of the maxillary sinus even after physical growth.
摘要：
目的探讨成人颅面形态与上颌窦形态的相关性,评价正畸治疗是否有利于上颌窦增大。材料与方法共有45名成年妇女在正畸治疗前后进行了头颅造影和计算机断层扫描。所有参与者被分为三组：骨骼I类，II,和III。计算每个亚组上颌窦的平均尺寸和体积。此外，采用多元回归分析上颌窦尺寸与20个头颅测量变量的相关性.结果治疗前,上颌窦宽度,高度,深度,体积为32.2±3.9毫米，39.5±3.8mm,38.6±1.8mm,骨骼I类36,179.3±5,454.0mm3，33.9±6.2mm,37.3±3.5mm,38.6±2.4mm,骨骼II类34,729.8±6,686.6mm3，和32.0±4.3毫米，41.8±5.0mm,38.0±2.8mm,和35,592.3±10,334.3mm3的骨骼III类，分别。尽管上颌窦宽度没有显著差异,深度,或音量，骨骼II类的身高明显低于其他两种。不管骨骼模式如何，治疗后上颌窦高度和体积明显增加。此外，上颌窦宽度基本上涉及预处理U1至SN和过咬，后处理U1至NA和过喷。结论除身高外,上颌窦的尺寸几乎相似,与骨骼分类无关。治疗后鼻窦的高度和体积明显大于治疗前的值,尽管在正畸治疗期间鼻窦的宽度和长度没有显着变化。这意味着即使在身体生长后，正畸治疗也可以促进上颌窦的扩大。
