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    Title: 以電腦斷層評估亞洲族群的顳顎關節窩角度
    Assessments of Inclinations of the Glenoid Fossa by Computed Tomography in an Asian Population
    Authors: 吳政寬;Cheng-Kuan Wu
    Contributors: 醫學院牙醫學系碩士班
    Keywords: 顳顎關節窩;年齡;性別;左右兩側;電腦斷層掃描;Glenoid Fossa;Age;Gender;Bilateral;Computed Tomography
    Date: 2010
    Issue Date: 2010-09-29 12:12:10 (UTC+8)
    Abstract: 因顳顎關節的型態則會影響下顎的運動軌跡，而口腔贗復補綴物會受到下顎運動的影響，故本研究的目的是測量顳顎關節窩的前、後、內、外角度，並探討性別、年齡、及左右顳顎關節窩的對稱性對於顳顎關節角度的影響，以建立一可靠的科學證據以供臨床之應用。研究樣本是由中國醫藥大學放射線部門的頭頸部電腦斷層影像中選取198位病患(女性95位，平均年齡及標準差為44.2?b20.7歲，年齡介於11到88歲；男性103位，平均年齡及標準差為44.5?b19.7歲，年齡介於15到98歲)，利用醫學影像軟體先校正電腦斷層影像至頭顱中線垂直電腦銀幕，再使頭顱骨的法蘭克福平面(Frankfort horizontal plane)與水平面平行，以醫學影像軟體測量顳顎關節窩的八個傾斜角：在左右兩側的矢狀切面下量測前方角度；在左右兩側的矢狀切面下量測後方角度；在左右兩側的冠狀切面下量測內側角度；在左右兩側的冠狀切面下量測外側角度。依據上述的標準，統計分析顯示男性的左右側顳顎關節前方角度皆比女性為大，顳顎關節窩的左右側前方角度與年齡呈中度的正相關，而其餘角度則不會因為年齡或是性別等因素而有顯著影響。而不論是在男性、女性、或是不分性別的群組皆發現左右兩側的顳顎關節角度並無顯著的統計差異。由結果可發現性別以及年齡兩變相對於顳顎關節窩的影響主要在前方角度，而左右兩側的顳顎關節角度基本上是對稱的。

    Because of mandibular movement would affect by the morphology of glenoid fossa. Furthermore, oral prosthesis would affect by mandibular movement. The purpose of this study was to measure the anterior, posterior, medial, and lateral inclinations of glenoid fossa, furthermore, evaluate the effect of the gender, age, and asymmetry of right and left side on the inclinations of the glenoid fossa. To establish an scientific data for clinical application. The head computed tomography images of the 198 Asians (95 females aged 44.2?b20.7 years, range 11–88 years; and 103 males aged 44.5?b19.7 years, range 15–98 years) were selected from the radiology department of China Medical University and Medical Center. All of computed tomography images were reoriented with it midline perpendicular to the screen, with it Frankford plane parallel to the horizontal plane. Eight parameters of inclinations of glenoid fossa were measured by medical image software: anterior inclination in left side and right side on sagittal view; posterior inclination in left side and right side on sagittal view; medial inclination in left side and right side on coronal view; lateral inclination in left side and right side on coronal view. According to the protocol above, statistical analysis shows that males exhibited significant steeper angles than females in the anterior inclination in both left and right sides. A moderate positive correlation was found between age and anterior inclination in left side and right side. The other parameters were not significant affected by the age and gender. In male, female, and both groups, there were no significant differences between right and left glenoid fossa in all parameters. The effect of age and gender were mainly affected the anterior inclination of the glenoid fossa. In addition, there was symmetry between right and left inclinations of glenoid fossa.
    Appears in Collections:[Scoll of Dentistry and Graduate Institute of Dental Sciences] Theses & dissertations

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