口腔医学 ›› 2026, Vol. 46 ›› Issue (8): 561-566.doi: 10.13591/j.cnki.kqyx.2026.08.001

• 基础与临床研究 •    下一篇

根尖周炎与局部边缘性牙槽骨丧失关系的回顾性研究

孙旭1, 李瑾2, 沈达2, 王学3()   

  1. 1 江苏省溧阳市人民医院口腔科, 江苏溧阳 (213300)
    2 苏州市立医院口腔科, 江苏苏州 (215000)
    3 苏州市吴江区牙病防治所, 江苏苏州 (215000)
  • 收稿日期:2026-04-20 出版日期:2026-08-28 发布日期:2026-08-24
  • 通讯作者: 王 学 E-mail:zitong830818@163.com
  • 基金资助:
    国家自然科学基金(82501111)

Relationship between apical periodontitis and local marginal alveolar bone loss: A retrospective study

SUN Xu1, LI Jin2, SHEN Da2, WANG Xue3()   

  1. 1 Department of Stomatology, Liyang People’s Hospital, Liyang 213300, China
  • Received:2026-04-20 Online:2026-08-28 Published:2026-08-24

摘要:

目的 基于锥形束CT(CBCT)探讨根尖周炎(apical periodontitis,AP)与局部边缘性牙槽骨丧失(alveolar bone loss,ABL)之间的关系。方法 采用同体对侧配对设计,纳入48例患者,共60对配对牙。将存在明确根尖周炎,即CBCT根尖周指数(periapical index,PAI)≥3的牙齿纳入根尖周炎组,其对侧根尖周正常牙(PAI≤1)纳入对照组。基于CBCT测量ABL并计算ABL比例(ABL%)。Wilcoxon符号秩检验、McNemar检验和Stuart-Maxwell检验用于组间比较;多因素线性混合效应模型(linear mixed-effects model,LMM)评估CBCT-PAI评分与骨丧失程度之间的趋势关联。结果 根尖周炎组的平均ABL及ABL比例显著高于对照组。AP对骨丧失的影响在前牙和磨牙区更为显著。在校正牙型等因素后证实,AP是平均ABL及ABL比例加重的独立相关因素。在根尖周炎牙中,CBCT-PAI评分每增加1分,平均ABL增加0.64 mm,ABL比例平均增加5.07%。结论 根尖周炎与局部边缘性牙槽骨丧失程度增加显著相关。

关键词: 根尖周炎, 牙槽骨丧失, 同体配对研究, 根尖周指数, 牙髓-牙周关系

Abstract:

Objective To investigate the association between apical periodontitis(AP) and local marginal alveolar bone loss(ABL) based on cone beam computed tomography(CBCT). Methods This study adopted an intra-subject contralateral paired design. A total of 48 patients with 60 pairs of matched teeth were included. Teeth with definite apical periodontitis, defined as a CBCT-periapical index(CBCT-PAI) score ≥3, were assigned to the AP group, while the contralateral teeth with normal periapical status(PAI≤1) served as the control group. ABL was measured on CBCT images, and the alveolar bone loss percentage(ABL%) was calculated. Group comparisons were performed using the Wilcoxon signed-rank test, McNemar test, and Stuart-Maxwell test. Multivariable linear mixed-effects models(LMMs) were used to evaluate the trend association between CBCT-PAI scores and the extent of bone loss. Results The AP group showed significantly greater mean ABL and ABL percentage than the control group. The impact of AP on alveolar bone loss is more significant in the anterior teeth and molars. After adjustment for tooth type and other relevant factors, AP remained an independent factor associated with increased mean ABL and ABL percentage. Among AP teeth, each 1-point increase in CBCT-PAI score was associated with a 0.64 mm increase in mean ABL and a 5.07% increase in ABL percentage. Conclusion Apical periodontitis is significantly associated with increased local marginal ABL.

Key words: apical periodontitis, alveolar bone loss, intra-subject paired study, periapical index, endodontic-periodontal relationship

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