發(fā)布時間：2018-03-17 17:42

  本文選題：錐形束CT　切入點：下頜第磨牙　出處：《中國臨床解剖學(xué)雜志》2017年03期 　論文類型：期刊論文

【摘要】：目的應(yīng)用錐形束CT(cone beam computed tomography,CBCT)觀察下頜第1磨牙的根管解剖形態(tài),為臨床根管治療提供參考依據(jù)。方法由兩名牙體牙髓專業(yè)醫(yī)生篩選我院口腔科自2014年12月至2015年12月進行CBCT檢查的500名患者,共計924顆下頜第1磨牙的影像資料,分別記錄患者的基本信息、牙位、根管構(gòu)型及鈣化情況,并進行統(tǒng)計學(xué)分析。結(jié)果 424名存在雙側(cè)下頜第1磨牙的患者中,76.2%(323)根管構(gòu)型完全對稱。924顆下頜第1磨牙中,雙根率為76.7%(709),3根率即遠舌根發(fā)生率為23.3%(215);近中根最常見根管類型為Vertucci Ⅳ型,占71.97%(665),其次為Ⅱ型,占23.70%(219);遠中根最常見根管類型為Ⅰ型,占49.35%(458),其次為Ⅳ型占31.82%(292)。存在遠舌根時,遠舌根管口與遠頰根管口距離為(2.94±0.27)mm。下頜第1磨牙根管鈣化率與年齡有關(guān),老年人鈣化率高,中年人次之。結(jié)論華南地區(qū)人群下頜第1磨牙根管形態(tài)多樣,變異性較大;CBCT是觀察根管形態(tài)的有效工具,可以為根管治療提供輔助診斷。
[Abstract]:Objective to observe the anatomic morphology of the root canal of mandibular first molar with CT(cone beam computed tomography-CBCTs. Methods from December 2014 to December 2015, 500 patients with CBCT were selected by two dental pulp doctors, and a total of 924 mandibular first molars were obtained. The basic information, tooth position, root canal configuration and calcification were recorded and analyzed statistically. Results out of 424 patients with bilateral mandibular first molars, there were 76.2and 323) complete symmetry of root canal configuration. 924 mandibular first molars. The most common root canal type was Vertucci 鈪，

本文編號：1625793