锥形束CT对牙根纵裂的诊断价值  

The diagnostic value of cone-beam computed tomography for vertical root fractures

作　　者：周广超[1,2] 张栋华[3] 陈武[4] 孙超[1,2] 

机构地区：[1]南京医科大学口腔医学研究所 [2]南京医科大学附属口腔医院口腔放射科,南京210029 [3]南京医科大学附属口腔医院口腔颌面外科,南京210029 [4]南京医科大学附属口腔医院牙周科,南京210029

出　　处：《口腔医学》2013年第12期810-812,841,共4页Stomatology

基　　金：江苏高校优势学科建设工程资助项目(2011137)

摘　　要：目的评价锥形束CT(CBCT)对牙根纵裂(VRF)的临床诊断价值。方法对61例患者的67颗临床检查怀疑为VRF的患牙拍摄根尖X线片和CBCT,然后对所有患牙进行根尖切除、牙周翻瓣或拔除等外科手术,以确诊VRF是否存在。将根尖X线片和CBCT影像对VRF的诊断结果与外科手术结果进行比较和统计分析。结果外科手术证实62颗患牙VRF明确存在。CBCT诊断VRF的阳性检出率、灵敏度和准确度分别为83.6%、90.3%和91.0%,而根尖X线片为31.3%、33.9%和38.8%(P<0.01)。CBCT诊断颊舌向和近远中向VRF的灵敏度分别为93.2%和62.5%,高于根尖X线牙片的69.6%和12.8%(P<0.05)。结论 CBCT比根尖X线片更准确地诊断VRF。Objective To evaluate the value of cone-beam computed tomography（CBCT） in the diagnosis of vertical root fractures （VRF）. Methods Sixty-seven teeth suspected of VRF from 61 patients underwent periapical radiograph（PR） and CBCT. Then all sub- jects underwent surgical operation and direct visualization to confirm the presence or absence of VRF. The results were compared and ana- lyzed statistically. Results Surgical operations confirmed the presence of VRF in 62 teeth. The positive rate,sensitivity and accuracy of VRF according to CBCT were 83.6% ,90.3% and 91.0% respectively,while those of PR were 31.3% ,33.9% and 38.8% ,respectively （P 〈0.01 ）. The sensitivity of CBCT for VRF in buccolingnal and mesiodistal direction were 93.2% and 62.5% ,which were higher than those of PR（69.6% and 12.8% ） （P 〈0.05）. Conclusions CBCT appears to be more accurate than PR in the diagnosis of VRF.

关 键 词：锥形束CT 根尖X线片 牙根纵裂 诊断 

分 类 号：R816.98[医药卫生—放射医学]