中国医科大学学报

中国医科大学学报

中国医科大学学报 ›› 2012, Vol. 41 ›› Issue (4): 320–322.

• 口腔医学 • 上一篇    下一篇

根尖周指数在前牙锥形束CT图像中的应用

马兰1,詹福良1,矫贞涛2,薛明1,张萍3,仇丽鸿1   

  1. (1.中国医科大学附属口腔医院牙体牙髓科,沈阳 110002;2.中国医科大学附属口腔医院口腔颌面外科,沈阳 110002;3.沈阳军区装备部门诊部,沈阳 110001)
  • 收稿日期:2012-09-24 修回日期:2012-09-24 出版日期:2012-04-20 发布日期:2012-09-26

The Application of Periapical Index in CBCT Images of Anterior Posterior Teeth

MA Lan1, ZHAN Fu-liang1, JIAO Zhen-tao2, XUE Ming1, ZHANG Ping3, QIU Li-hong1   

  1. (1. Department of Endodontics, Stomatology HospitalSchool of Stomatology, China Medical University, Shenyang 110002; 2. Department of Oral and Maxillofacial Surgery, Stomatology Hospital ofSchool of Stomatology, China Medical University, Shenyang 110002; 3. Outpatient Department of Outpatient, Equipment Department of Shenyang Military Region, Shenyang 110001)
  • Received:2012-09-24 Revised:2012-09-24 Online:2012-04-20 Published:2012-09-26

摘要: 目的 比较新根尖周指数(N-PAI)与旧根尖周指数(O-PAI)在前牙锥形束CT(CBCT)图像中的应用。方法 收集中国医科大学附属口腔医院牙体牙髓门诊具有锥形束CT(CBCT)图像和X线片的患者63例,共95颗前牙,包括无症状牙40颗,诊断为慢性牙髓炎15颗,慢性根尖周炎35颗(包括根管治疗后患牙7颗),根管治疗后表现正常5颗,根据新、旧根尖周指数评判病例的分级,并对所得两组数据进行统计分析。结果 X线片与CBCT图像的根尖周炎检出率分别为3795(38.95%)和5695(58.95%),差异有统计学意义(χ2=7.60,P0.01)。CBCT图像O-PAI为1、2时,N-PAI可有不同程度分级;当O-PAI为3、4、5时,由于分级界限不清导致评片重复性不佳,而N-PAI可通过病损大小明确分级。结论 N-PAI通过病变的大小评定根尖周炎的分级,同时包括骨皮质的破坏情况,而O-PAI相邻两个级别之间的划分界限不明确,前者更能体现根尖周炎的实际情况。

关键词: 关键词 根尖周指数, 锥形束CT, 慢性根尖周炎

Abstract: Abstract PURPOSEObjective To compare the application of the old-periapical index (O-PAI) and the new-periapical index (N-PAI) in Cone Beam CT (CBCT) images of anteriorposterior teeth. METHODS Methods The clinic diagnosis of ninety-five95 anterior teeth in 63 patients, which were examined by periapical radiography and CBCT, consisted of asymptomatic teeth (40 teeth), chronic pulpitis (15 teeth), chronic apical periodontitis (35 teeth, including 7 cases with root canal therapy), remnant root with normal apical images after root canal therapy (5 teeth). All images were evaluated based on the O-PAI and N-PAI. Then the results were analyzed statistically. RESULTS Results Apical periodontitis (AP) was identified in 37 cases and 56 cases out of 95 cases by radiography and CBCT respectively, so the difference had remarkable significance (χ2=7.60, P0.01). When the O-PAI of CBCT images was 1、 and 2, the N-PAI presented different classifications; when the O-PAI was 3、, 4、, and 5,, the classification was indefinite but the N-PAI is was clear. CONCLUSIONS Conclusion The use of O-PAI for the classifications was ambiguous . The rule of the N-PAI which even could show the destruction of cortical bone was definite, but and more accurate than the O-PAI.

Key words: Periapical index, cone-beam computed tomography, chronic apical periodontitis

中图分类号: 

  • R781.34. 文献标志码 A
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[2] 张凌,高景,仇丽鸿. 3种根管消毒药物治疗慢性根尖周炎的临床效果比较[J]. 中国医科大学学报, 2013, 42(10): 882-884.
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