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目的评价锥形束CT(CBCT)检查对根尖周病复杂病例的诊断价值。方法于2013年5月至2014年5月从沈阳市铁西区牙病防治所门诊随机选取以不明原因牙痛为主诉的患者40例(患牙40颗),拍摄患牙X线根尖片(常规正位和远中10°平行投照)并进行CBCT检查,采用根尖周指数(PAI)评价根尖周病损状况,比较两种方法对根尖周病复杂病例诊断及病因判断的差异。结果 X线根尖片与CBCT检查在判断患牙有无根尖周病损上一致性差;两种方法对患牙PAI分级判断的一致性亦差;CBCT检查能够更好地明确牙痛原因。结论 CBCT检查有助于诊断临床上不明病因的根尖周病复杂病例。
Objective To evaluate the diagnostic value of cone beam computed tomography (CBCT) in the diagnosis of complex apical disease. Methods From May 2013 to May 2014, 40 patients (40 teeth) who complained of toothache of unknown origin were randomly selected from outpatient clinics of Dental Clinic, Tiexi District, Shenyang City. Tooth radiographs Conventional anteroposterior and distal 10 ° parallel projection) and CBCT examination, the use of periapical index (PAI) evaluation of periapical lesions, compared with the two methods of diagnosis of periapical disease in complex cases and the etiology of the difference . Results X-ray and CBCT examination in determining the presence or absence of periapical lesions lesions on the consistency of the poor; PAI grading the two methods to determine the consistency is also poor; CBCT examination to better determine the causes of toothache. Conclusions CBCT can help diagnose complex cases of periapical disease of unknown etiology.