本文選題：眶耳平面 + 前顱底平面�。� 參考：《青島大學(xué)》2016年碩士論文

【摘要】：目的:通過驗(yàn)證青島地區(qū)漢族人群X線頭顱定位側(cè)位片前顱底平面與眶耳平面的關(guān)系,用相對穩(wěn)定的前顱底平面替代在頭顱側(cè)位片上難以定位且不穩(wěn)定的眶耳平面,以降低因眶耳平面定位不準(zhǔn)確給X線片測量結(jié)果帶來的誤差。方法:選擇2013年10月到2015年10月與青島大學(xué)附屬醫(yī)院口腔正畸科就診的青島本地漢族人群,骨性I類個別正常合就診患者23例,年齡12~40歲,其中恒牙早期樣本8例,男4例,女4例;恒牙期樣本15例,男8例,女7例。23例就診人群分別與自然頭位下拍攝X線頭顱側(cè)位片及CBCT,利用青島大學(xué)頭影測量軟件結(jié)合CBCT影像定點(diǎn),求得SN平面與FH平面之間夾角的平均值。然后在不同性別的待測者的頭顱側(cè)位片中隨機(jī)各抽取5張,將SN平面以N為原點(diǎn),順時(shí)針旋轉(zhuǎn)6°、7°、8°、9°、10°用于替代假想的FH平面,在這旋轉(zhuǎn)的5個角度下分別測量與FH平面相關(guān)的3個線距值和3個角度值,利用計(jì)算機(jī)軟件系統(tǒng)定點(diǎn)并結(jié)合手工描繪的方法測量,將測量的各個數(shù)值輸入計(jì)算機(jī)系統(tǒng),利用SPSS17.0軟件對數(shù)據(jù)作統(tǒng)計(jì)學(xué)分析。用成組t檢驗(yàn)及單因素方差分析的方法進(jìn)行檢驗(yàn)。結(jié)果:青島地區(qū)漢族人群恒牙期個別正常合人群前顱底平面和眶耳平面之間的角度和恒牙所處的時(shí)期的差別無統(tǒng)計(jì)學(xué)意義,與就診人群的性別有統(tǒng)計(jì)學(xué)差異。將SN平面以N為原點(diǎn)男性順時(shí)針旋轉(zhuǎn)8°,女性順時(shí)針旋轉(zhuǎn)9°后,測量的數(shù)據(jù)和真實(shí)的FH平面所測得的角度之間的差異無統(tǒng)計(jì)學(xué)意義。結(jié)論:青島地區(qū)漢族人群個別正常合群體可將SN平面以N點(diǎn)為原點(diǎn),女性順時(shí)針旋轉(zhuǎn)9.75°,男性旋轉(zhuǎn)8.26°用來代替眶耳平面。
[Abstract]:Objective: to verify the relationship between the anterior skull base plane and the orbital ear plane of the lateral radiographic radiographs of the Han nationality population in Qingdao area, and to replace the unstable orbital ear plane with the relatively stable anterior skull base plane on the lateral radiography of the head. In order to reduce the error of X-ray measurement due to the inaccuracy of orbital and ear plane positioning. Methods: from October 2013 to October 2015, 23 orthodontic patients, aged 1240 years, were selected from orthodontics department of Qingdao University affiliated Hospital of Qingdao University. There were 8 cases of early permanent teeth and 4 cases of male. 15 cases of permanent teeth, 8 cases of male and 7 cases of female. 23 cases were taken under the natural cephalic position of X-ray lateral radiographs and CBCTs respectively. Cephalometric software of Qingdao University combined with CBCT imaging site was used. The mean value of the angle between SN plane and FH plane is obtained. Then, 5 lateral cephalograms were randomly selected from the subjects of different genders. The SN plane was rotated clockwise with N as the origin, and 6 擄7 擄8 擄9 擄10 擄was rotated clockwise to replace the imaginary FH plane. Three line distance values and three angle values related to the FH plane were measured at the five angles of rotation, and each value was input into the computer system by using the computer software system fixed points and the method of manual description. The data were analyzed by SPSS17.0 software. Group t test and single factor analysis of variance (ANOVA) were used to test. Results: there was no significant difference between the angle of anterior skull base plane and orbital ear plane and the period of permanent tooth in Qingdao Han population, but there was statistical difference between the two groups. When the SN plane was rotated 8 擄clockwise for men and 9 擄for females, there was no significant difference between the measured data and the angle measured by the real FH plane. Conclusion: the SN plane can be taken as the origin of N point, the clockwise rotation of female is 9.75 擄, and the rotation of male is 8.26 擄instead of the orbital ear plane.
【學(xué)位授予單位】：青島大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：R783.5

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