- 期刊
國人各種咬合正面測顱性別差異的研究
A Study on Sexual Differences of Postero-Ante-Rior Cephalometrics among Chinese in Taiwan with Different Occlusions
摘要
本研究的主要目的，在於利用正面測顱X光片探討國人在不同的咬合分類，其正面齒顎顱顏形態的特徵，並同時觀察性別之不同在齒顎顱顏寬度與形態上主差異。本研究採用373名臨床病人矯正治療前之資料，依咬合分類、性別、年齡層之不同分成12組，綜合多種正面測顱X光片分析法，選用31個測量項目(包括20個寬度實測值與11個寬度例值)，利用t-test來探討性別的不同，在齒顎顱顏寬度與形態上之表現。綜合結果與討論，而得到以下的結論：(１)齒顎顱顏寬度大小的兩性二形現象，在9～12歲即已出現。隨著生長，差距持續增大，故成年男女之兩性二形現象更加顯著。(２)不論咬合分類、不論兒童期或成人期，男性在齒顎顱顏大少上，顯著大於女性；而齒顎顱寬度大小的兩性二形在中顏面(顴骨部)、下顎角及下顎髁頭處最為顯著。
關鍵字
無資料並列摘要
The main purpose of this study is to investigate the characteristics of cranio-dento-facial morphology among Chinese in Taiwan with different occlusions by the posteroanterior cephalograms and to examine the dif-ferences between sexs in the cranio-dento-facial width as well as morpholo-gy. Our study comprised three hundred and seventy three patinents with pre-orthodontic treatment records. They were divided into 12 groups with re-spect to the Angle's classification, sex, and age. Summarizing the differences of the various cephalometric analyses, 31 kinds of measurement, including 20 values of width dimension and 11 values fo the width ratio, were employed. The results of using the Stu-dent t-test to study the sex differences of cranio-dento-facial width and mor-phology are summarized as follows: (1) The sexual dimorphism of the cranio-dento-facial width occurrs as ear-ly as the age of 9-12. The deviation is augmented continuously with growth and, hence, it is more pronounced in adults. (2) Regardless of the class of occlu-sion or the stage of maturity, the cranio-dento-facial size of the male is significantly larger than that of the female. However, their cranio-dento-fa-cial morphology is similar. (3) The sexual dimorphism of the cranio-dento-facial width dimensions is most pronounced in the zygoma, the mandibular angle and the condyles.