Ariji Y, Ariji E, Yoshiura K, Kanda S
Department of Radiology, Nagasaki University School of Dentistry, Japan.
Dentomaxillofac Radiol. 1996 Jan;25(1):19-24. doi: 10.1259/dmfr.25.1.9084281.
To ascertain the normal range of maxillary sinus size and its changes with age on computed tomography (CT) and define convenient indices for sinus size, in addition, to examine the association of the height of the sinus floor with age and status of the dentition.
The transverse and anteroposterior dimensions of the normal maxillary sinuses in 107 subjects were measured on axial CT and the relationship between these values and the sinus volume analysed. The height of the sinus floor was obtained by measuring the vertical distance from the anterior nasal spine to the sinus floor.
The mean transverse and anteroposterior widths of the normal adult maxillary sinuses were 2.70 (s.d., 0.60) cm and 3.56 (s.d., 0.47) cm, respectively. There was a close correlation with sinus volume which could be predicted well from the multiple regression formula. These values increased up to the age of 20 y, but then decreased. There was no significant difference between subjects aged 50-79 years with and without maxillary premolars and molars. The width of the adult sinus correlated with the interzygomatic buttress distance and body weight. The mean height of the adult maxillary sinus floor was 0.37 (s.d., 0.44) cm inferior to the anterior nasal spine. It correlated negatively with sinus volume and fell with age up to 20 y, then rose again. In adults, it was not significantly influenced by the dentition status, and rose in proportion to the decrease in the interzygomatic buttress distance, and body height and weight.
The transverse and anteroposterior widths of the maxillary sinus on axial CT are convenient indices for its size. The height of the sinus floor altered with changes in sinus volume, but was not directly influenced by the status of the dentition.
通过计算机断层扫描（CT）确定上颌窦大小的正常范围及其随年龄的变化，并定义方便的鼻窦大小指数，此外，研究鼻窦底高度与年龄及牙列状况之间的关联。
在轴向CT上测量107名受试者正常上颌窦的横向和前后径，并分析这些值与鼻窦体积之间的关系。通过测量从前鼻棘到鼻窦底的垂直距离获得鼻窦底的高度。
正常成人上颌窦的平均横向宽度和前后宽度分别为2.70（标准差，0.60）cm和3.56（标准差，0.47）cm。与鼻窦体积密切相关，可通过多元回归公式很好地预测。这些值在20岁之前增加，但随后下降。50至79岁有和没有上颌前磨牙及磨牙的受试者之间没有显著差异。成人鼻窦的宽度与颧突间支撑距离和体重相关。成人上颌窦底的平均高度比前鼻棘低0.37（标准差，0.44）cm。它与鼻窦体积呈负相关，在20岁之前随年龄下降，然后再次上升。在成年人中，它不受牙列状况的显著影响，并与颧突间支撑距离、身高和体重的减少成比例上升。
轴向CT上的上颌窦横向和前后宽度是其大小的方便指数。鼻窦底的高度随鼻窦体积的变化而改变，但不受牙列状况的直接影响。
