锥形束CT与根尖片识别根尖周膜宽度的对比性研究

doi:10.13701/j.cnki.kqyxyj.2018.04.014

口腔医学研究 ›› 2018, Vol. 34 ›› Issue (4): 393-396.DOI: 10.13701/j.cnki.kqyxyj.2018.04.014

锥形束CT与根尖片识别根尖周膜宽度的对比性研究

崔旋旋¹, 申静^2*, 高静², 陈瑶³

1. 南开大学医学院天津 300071;
2. 天津市口腔医院国际诊疗中心天津 300041;
3. 天津市口腔医院牙体牙髓二科天津 300041

收稿日期:2017-10-05 出版日期:2018-04-28 发布日期:2018-04-25
通讯作者: 申静,E-mail:shenjing611@163.com
作者简介:崔旋旋(1986~ ),女,山东人,硕士,主要从事牙体牙髓病学研究工作。

Comparative Investigation of Cone Beam Computed Tomography and Periapical Radiography in Identification of PDL Space.

CUI Xuan-xuan¹, SHEN Jing^2*, GAO Jing², CHEN Yao³.

1. Medical College of Nankai University, Tianjin 300071, China;
2. The International Medical Center of Tianjin Stomatology Hospital, Tianjin 300041, China;
3. Department of Endodontic Ⅱ Tianjin Stomatology Hospital, Tianjin 300041, China.

Received:2017-10-05 Online:2018-04-28 Published:2018-04-25

摘要/Abstract

摘要： 目的:比较锥形束CT(cone beam computerized tomography,CBCT)与根尖片识别健康及牙髓坏死牙齿根尖周膜宽度的差异性。方法:选取234颗无临床症状及阳性体征的单根牙齿,利用牙髓活力测试判断牙髓状态,并利用改良的根尖周指数(modified CBCT-periapical index,PAI)评估CBCT及根尖片的影像,结果分别记录为CBCT-PAI和PAI。通过χ²检验和Fisher精确检验对CBCT-PAI、PAI及牙髓状态进行相关性分析。结果:210颗牙齿牙髓活力正常,24颗牙髓无反应;61.9%(130/210)的健康牙齿的CBCT-PAI大于PAI。CBCT与根尖片评估健康牙齿根尖周膜的宽度,差别有统计学意义(P<0.01)。利用CBCT评估健康与牙髓坏死牙齿的根尖周膜宽度差别有统计学意义(P<0.01)。结论:健康牙齿的根尖周膜宽度在CBCT与根尖片上的表现存在差异,利用CBCT进行评估死髓牙齿的根尖周膜宽度大于健康牙齿。

关键词: 锥形束CT, 诊断, 根尖片, 根尖周病损

Abstract: Objective: To compare the periodontal ligament (PDL) space for teeth at different pulp statuses with CBCT and periapical radiography. Methods: Two hundred and thirty-four single root teeth without clinical symptoms and positive signs were included. They all had a CBCT scan, a periapical radiograph, and clinical pulp tests. The periapical regions of the CBCT scans and radiographs were scored by modified CBCT-periapical index (CBCT-PAI) and represented as CBCT-PAI and PAI, respectively. The Fisher exact and Chi-squared statistics tested the relationship between CBCT-PAI, PAI, and pulp status. Results: Two hundred and ten teeth had health pulp, and the other teeth were no respond. The CBCT-PAI score was greater than the PAI in 61.9% (130 of 210) teeth. The PDL space of healthy teeth was statistically significant when examined by CBCT and periapical radiography (P<0.01). The difference of PDL on CBCT between teeth with healthy and necrotic pulps was statistically significant (P<0.01). Conclusion: Significant differences were observed between CBCT and periapical radiography in detection the PDL space of healthy teeth. Teeth with necrotic pulps were more likely to have wide PDL when examined by CBCT.

Key words: Cone beam computerized tomography, Diagnosis, Periapical radiography, Periapical lesions

崔旋旋, 申静, 高静, 陈瑶. 锥形束CT与根尖片识别根尖周膜宽度的对比性研究[J]. 口腔医学研究, 2018, 34(4): 393-396.

CUI Xuan-xuan, SHEN Jing, GAO Jing, CHEN Yao.. Comparative Investigation of Cone Beam Computed Tomography and Periapical Radiography in Identification of PDL Space.[J]. Journal of Oral Science Research, 2018, 34(4): 393-396.

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锥形束CT与根尖片识别根尖周膜宽度的对比性研究

Comparative Investigation of Cone Beam Computed Tomography and Periapical Radiography in Identification of PDL Space.

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