Sosa F A, Graber T M, Muller T P
Am J Orthod. 1982 Apr;81(4):299-309. doi: 10.1016/0002-9416(82)90216-0.
Opinions differ with regard to the relationship of adenoids and type of malocclusion. To study this possible relationship, xeroradiographic lateral cephalograms were made of eighty Class I (Angle) and sixty-four Class II, Division 1 (Angle) malocclusions to obtain reliable measures of the epipharyngeal lymphoid tissue, the nasopharyngeal airway, the nasopharynx, and certain cephalometric landmarks. Xeroradiographic cephalograms provide superior visualization with edge-enhancement effect for both soft and hard tissues. Electronic digitization and a comprehensive computer analysis were used to assess the head films. Significant differences were found for some of the linear and angular cephalometric criteria between the two malocclusion categories. A sexual dimorphism was observed. These skeletal and dental differences were anticipated in this mixed malocclusion sample, as prior cephalometric studies which compare different classes of malocclusion have shown. Airway space did not appear to vary with the type of malocclusion. Some low-level correlations were found between the size of the nasopharyngeal area and certain skeletal characteristics. These correlations depended on both the malocclusion type and the sex of the individual. The lateral, two-dimensional cephalogram does not seem to offer satisfactory information relating the nasopharyngeal area to Class I or to Class II, Division 1 malocclusions.
关于腺样体与错牙合类型的关系，存在不同观点。为研究这种可能的关系，对80例I类（安氏）和64例II类1分类（安氏）错牙合患者进行了干板X线侧位头影测量，以获取关于咽上淋巴组织、鼻咽气道、鼻咽以及某些头影测量标志点的可靠测量数据。干板X线头影测量对软组织和硬组织均具有边缘增强效果，能提供更清晰的图像。利用电子数字化技术和全面的计算机分析对头影进行评估。发现两类错牙合之间在一些线性和角度头影测量指标上存在显著差异。观察到了性别差异。正如之前比较不同错牙合类型的头影测量研究所示，在这个混合错牙合样本中，这些骨骼和牙齿差异是可以预期的。气道空间似乎并未因错牙合类型而异。在鼻咽区域大小与某些骨骼特征之间发现了一些低度相关性。这些相关性取决于错牙合类型和个体性别。二维侧位头影测量似乎无法提供关于鼻咽区域与I类或II类1分类错牙合之间关系的令人满意的信息。
