口腔医学研究 ›› 2021, Vol. 37 ›› Issue (11): 994-998.DOI: 10.13701/j.cnki.kqyxyj.2021.11.008

• 牙体牙髓病学研究 • 上一篇    下一篇

乳牙根尖周炎对继承恒牙发育影响的影像学研究

李玲, 杨细虎*, 李俊江   

  1. 江苏大学附属医院口腔科 江苏 镇江 212000
  • 收稿日期:2021-05-17 出版日期:2021-11-28 发布日期:2021-11-22
  • 通讯作者: *杨细虎,E-mail:yangxihu1981@126.com
  • 作者简介:李玲(1988~ ),女,江苏镇江人,硕士,主治医师,研究方向:儿童口腔医学。
  • 基金资助:
    江苏省青年医学人才(编号:QNRC2016841)镇江市社会发展项目(编号:SH2020052)

Effects of Primary Tooth with Periapical Periodontitis on Permanent Successor by Imaging Studies

LI Ling, YANG Xihu*, LI Jun   

  1. Department of Stomatology, The Affiliated Hospital of Jiangsu University, Zhenjiang 212000, China
  • Received:2021-05-17 Online:2021-11-28 Published:2021-11-22

摘要: 目的: 研究乳牙根尖周炎对继承恒牙生长发育的影响。方法: 研究对象为患有慢性根尖周炎的下颌第一乳磨牙,筛选出符合要求的全口牙位曲面体层X线片148例共计纳入175颗患牙(男性95颗,女性80颗)。对继承恒牙发育值进行判读计分并与正常恒牙发育值比较;统计继承恒牙形态及方向异常所占比例,分析男、女间的差异;分析乳牙及牙囊破坏的程度,探索二者的关联性。结果: 各年龄组继承恒牙发育值与正常恒牙相比均有差异,其中男性的4、7、8岁组及女性的6、7、9岁组差异有统计学意义(P<0.05)。继承恒牙出现了牙囊破坏、方向改变及形态异常的比例分别为男性78.94%、42.1%、8.42%,及女性82.50%、38.75%、15.00%,男、女间差异不具统计学意义。乳牙破坏和牙囊破坏不存在程度上的对应关系,二者并无明显相关性。结论: 乳牙根尖周炎可导致继承恒牙发育加快或迟缓,可能导致其形态及方向发生改变,并且这种负面影响的大小和乳牙破坏程度没有明显关联。

关键词: 乳牙根尖周炎, 继承恒牙, 牙齿发育

Abstract: Objective: To evaluate dental anomalies in permanent teeth as a result of periapical periodontitis concerning the predecessor primary teeth. Methods: A total of 148 panoramic radiographs of children within the age range of 3 to 10 years were collected and 175 mandibular first primary molar with chronic periapical periodontitis (95 males and 80 females) were analyzed. All permanent successor were scored according to Nolla's method and compared with normal ones' of each age. The percentage of dental malposition and malformation were analyzed. The primary molar and dental follicle were scored and analyzed. Results: The dental scores of permanent successor were different from normal teeth. The differences were significant in many groups (aged in 4, 7, and 8 groups for males and 6, 7, and 9 for females, P<0.05). The percentage of permanent successor involved with dental follicle broken, malposition, and malformation were 78.94%, 42.1%, and 8.42% for male, and 82.50%, 38.75%, and 15.00% for female, respectively (P>0.05). No correlation was found between the damage level of deciduous teeth and dental follicle. Conclusion: Primary tooth with periapical periodontitis can lead to development anomaly, either acceleration or deceleration. It can also lead to malposition and malformation, which is not depended on the damage level of deciduous teeth.

Key words: primary tooth with periapical periodontitis, permanent successor, dental development