跳到主要內容

臺灣博碩士論文加值系統

(44.200.194.255) 您好!臺灣時間:2024/07/24 05:25
字體大小: 字級放大   字級縮小   預設字形  
回查詢結果 :::

詳目顯示

我願授權國圖
: 
twitterline
研究生:范揚橋
論文名稱:放射線測顱分析法與國人標準值之研究
論文名稱(外文):A Study of Radiographic Cephalometric Analysis and Taiwanese Standards
指導教授:陳坤智陳坤智引用關係
學位類別:碩士
校院名稱:國立臺灣大學
系所名稱:牙醫學系
學門:醫藥衛生學門
學類:牙醫學類
論文種類:學術論文
論文出版年:1995
畢業學年度:83
語文別:中文
論文頁數:139
中文關鍵詞:放射線測顱分析法
相關次數:
  • 被引用被引用:2
  • 點閱點閱:937
  • 評分評分:
  • 下載下載:0
  • 收藏至我的研究室書目清單書目收藏:0

  為了建立國人的測顱標準值,本研究從台大牙醫學系顱顏生長發育研究室的檔案中找出863名受試者的側面測顱x光片。這些受試者包括422名男性及441名女性,都具有臨床可接受之正常咬合及顏面外觀,並且未接受過齒顎矯正治療。他們的年齡從6歲至18歲,除了以每年的年齡分組外,並且以就學的年齡分成4個學齡組--初小組(6≦X<9歲),高小組(9≦x<12歲),國中組(12≦X<15歲)及高中組(15≦X<9歲)。這些側面測顱X光片用描繪紙描繪後,利用數位轉換儀將17個測顱界標 (cephalometric landmarks)輸入電腦,利用電腦程式求出每位受試者的51項測量值。統計6到18歲每個年齡組及學齡組之測量項目的平均值與標準差,並且評估性別及年齡對標準值的影響。
  由研究結果發現男女的差異主要在線性測量值,男性比女性大,角度及比例測量值的差異較小;在年齡方面,從6歲到18歲,隨著年齡增加,下顎相對於顱底及上顎會越來越前突,並且下顎有往前旋轉(forward retation)傾向。
  本研究除了提供國人不同年齡與性別之標準值外,也提出一套測顱分析法,總共51個變項,分成5大類,分別是顏面多邊形分析(Facial polygon analysis),顎三角形分析(Jaw triangle analysis),顎骨及牙齒傾斜度分析(Facial and dental procumbency analysis),顏面開展度及顏面高度分析(Facial divergency and Facial height analysis),以及向量分析(Vector analysis)。期望由不同觀點的評估,而能對顱顏結構有更清楚的了解。


  To study the craniofacial structures for Chinese population in Taiwan and establish their cephalometric standards, lateral cephalometric roentgenograms of 863 subjects including 422 males and 441 femals were selected from the files of School of Dentistry, College of Medicine, National Taiwan University. There subjects met the requirements of acceptable occlusion, acceptable facial profile, and absence of previous orthodontic treatment. The subjects aged from six to eighteen were grouped annually for both sexes, and also grouped into four stages corresponded with those of the students in junior primary school (6≦X<9 years old), senior primary school ( 9≦X<12 years old), junior high school (12≦X<15 years old) and senior high school (12≦X<19 years old)respectively. The cephalometric roentgenograms were traced by standardized tracing method. Seventeen cephalometric landmarks of each cephalometric tracing were transfer to computer by digitizer, and 51 variables were measured in the computer. Each item of the measurements was treated statistically to obtain the means and standard deviation at each year age group from 6 to 18 years and at each school age group. The effects of growth change and sexual dimorphism on the cephalometric measurements were also evaluated.
  The results of the study offer cephalometric standards which are specific to sex and age from 6 to 18 years old Chinese. The complete cephalometric analysis to evaluate the craniofacial structures of this population was performed via the five categories- Facial polygon analysis, Jaw triangle analysis. Facial and dental procumbency analysis, Facial divergency and facial height analysis and Vector analysis. We expect to evaluate the craniofacial structures via the five different viewpoints.
  The effect of sex and age on the cephalometric standards for chiness population can be summarized as follows:(1)Significant difference between the males and the females existed mostly in the linear measurements. White most angular measurements and items of ratio between linear measurements did not show significant sex difference. (2) The mandible became more and more protrusive as related to the maxilla and cranial base, and tended to rotate forward with age.

QRCODE
 
 
 
 
 
                                                                                                                                                                                                                                                                                                                                                                                                               
第一頁 上一頁 下一頁 最後一頁 top