口腔医学研究

口腔医学研究 ›› 2021, Vol. 37 ›› Issue (6): 533-538.DOI: 10.13701/j.cnki.kqyxyj.2021.06.012

• 口腔正畸学研究 • 上一篇    下一篇

混合牙列ⅢA期个别正常牙合下颌牙弓及基骨弓的形态研究

张蓓, 朱少军, 盛丽, 张瑞涵, 王智亨, 夏依达·阿哈提, 王梦琪, 刘奕杉*   

  1. 新疆医科大学第一附属医院(附属口腔医院)儿牙预防科,新疆维吾尔自治区口腔医学研究所 新疆 乌鲁木齐 830054
  • 收稿日期:2020-06-08 出版日期:2021-06-28 发布日期:2021-06-17
  • 通讯作者: *刘奕杉,E-mail:lys-tree@126.com
  • 作者简介:张蓓(1991~ ),女,河南人,硕士在读,研究方向:儿童口腔咬合诱导。
  • 基金资助:
    国家自然科学基金(编号:81560178)

Study on Morphology of Some Normal Maxillary and Mandibular Dental Arch and Basal Bone Arch in Mixed Dentition Stage ⅢA

ZHANG Bei, ZHU Shaojun, SHENG Li, ZHANG Ruihan, WANG Zhiheng, Xayda·AHAT, WANG Mengqi, LIU Yishan*   

  1. Department of Pediatric and Preventive Dentistry, the First Affiliated Hospital of Xinjiang Medical University(Affiliated Stomatological Hospital), Urumqi 830054, China
  • Received:2020-06-08 Online:2021-06-28 Published:2021-06-17

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摘要： 目的:通过三维数字化测量对混合牙列ⅢA期个别正常牙合下颌牙弓及基骨弓形态的测量比较,分析混合牙列ⅢA期个别正常牙合下颌牙弓、基骨弓形态相关性,以期对临床及科研工作提供理论依据和参考。方法:选取就诊于新疆医科大学第一附属医院(附属口腔医院) 儿牙预防科符合要求的儿童92例(男44例,女48例),制取石膏模型,采用三维数字化扫描及测量软件进行测量:获得下颌牙弓、基骨弓标志点之间的直线距离和距离差值;对下颌牙弓、基骨弓形态参数进行Pearson相关性分析,并得出拟合曲线图。结果:(1)FA’点至WALA’点距离差值从乳尖牙区开始向磨牙区数值逐渐增大。FA点与WALA点之间的直线距离由下颌中切牙至下颌第一恒磨牙距离逐渐减小,直线距离在男女之间无统计学差异(P＞0.05)。(2)下颌牙弓、基骨弓前段、中段、后段长度与宽度之间均相关性显著,具有统计学意义(P<0.01)。下颌牙弓、基骨弓中段、后段宽度高度相关关系(r=0.842,r=0.882),其余测量指标之间均为中度相关关系。结论:混合牙列ⅢA期个别正常牙合下颌牙弓、基骨弓形态密切相关,并得出新疆乌鲁木齐地区混合牙列ⅢA期个别正常牙合下颌牙弓FA点与基骨弓WALA点的距离差值的正常值范围。

关键词: 混合牙列, 个别正常牙合, 下颌牙弓, 基骨弓

Abstract: Objective: To analyze the correlation between the dental arch and basal bone arch of some normal jaw and mandible in mixed dentition stage ⅢA through comparing the 3D digital measurement of dental arch and basal bone morphology. Methods: A total of 92 children (44 males and 48 females) who met the requirements in the Department of Pediatric Dentition Prevention of the First Affiliated Hospital of Xinjiang Medical University were selected. They were made plaster models and measured by 3d digital scanning and measuring software. Pearson correlation analysis was conducted on the morphological parameters of mandibular dental arch and basal bone arch, and the fitting curve was obtained. Results: The distance difference between FA 'point and WALA' point gradually increased from the lacteal cusp area to the molars area. The linear distance between FA point and WALA point gradually decreased from the mandibular central incisor to the mandibular first permanent molar. There was no statistical difference between men and women on the linear distance (P>0.05). There was a significant correlation between the length and width of mandibular dental arch, the anterior segment of basal bone arch, the middle segment, and the posterior segment (P<0.01). The correlation between the width and height of the mandibular dental arch, the middle and posterior segment of the basal bone arch (r=0.842, r=0.882), and the other measurement indexes were all moderately correlated. Conclusion: The morphology of individual normal mandibular arch and basal bone arch in mixed dentition ⅢA stage is closely related, and the normal value of the difference between FA point of individual normal mandibular arch and WALA point of basal bone arch in mixed dentition ⅢA stage is obtained.

Key words: mixed dentition, individual normal occlusion, dental arch, basal bone arch