口腔医学 ›› 2022, Vol. 42 ›› Issue (7): 631-636.doi: 10.13591/j.cnki.kqyx.2022.07.011

• 临床研究 • 上一篇    下一篇

单侧完全性唇腭裂新生儿上颌牙槽形态的三维测量分析

李玉晟, 范炜, 厉丹丹, 王震东   

  1. 南京医科大学附属口腔医院正畸科,江苏省口腔疾病研究重点实验室,江苏省口腔转化医学工程研究中心,江苏南京(210029)
  • 修回日期:2022-04-27 出版日期:2022-07-28 发布日期:2022-07-22
  • 通讯作者: 王震东 E-mail:wangzhd74@hotmail.com
  • 基金资助:
    南京医科大学科技发展基金(NMUB2020174)

Three-dimensional digital measurement and analysis of maxillary arches of unilateral complete cleft lip-and-palate newborns

LI Yusheng, FAN Wei, LI Dandan, WANG Zhendong   

  1. Department of Orthodontics, The Affiliated Stomatological Hospital of Nanjing Medical University; Jiangsu Province Key Laboratory of Oral Diseases; Jiangsu Province Engineering Research Center of Stomatological Translational Medicine,Nanjing 210029, China
  • Revised:2022-04-27 Online:2022-07-28 Published:2022-07-22

摘要: 目的 研究非综合征型单侧完全性唇腭裂新生儿上颌牙槽的三维形态特征,并验证三维测量方法的可靠性及可重复性。方法 筛选60名单侧完全性唇腭裂新生儿,通过iTero口内扫描仪对其初始上颌石膏模型进行扫描,由同一研究员使用Mimics软件对上颌牙槽的25个测量项目进行共两次三维测量,对两次的测量结果进行Bland-Altman一致性检验;并依据上颌牙槽的形态将样本分为G1、G2、G3三组,通过两两比较研究不同分组上颌牙槽的形态差异。结果 所有测量值的结果均符合正态分布,且两次测量结果具有较好的一致性。单侧完全性唇腭裂新生儿健侧的前段牙槽长度以及前后段牙槽的旋转角均明显大于对侧的前后段牙槽;G1及G2组健侧前段牙槽长度明显长于G3组,G1组牙槽裂隙宽度、牙弓中段的裂隙宽度、尖牙水平的牙弓宽度和健侧前段牙槽的旋转角都明显小于G2、G3组。结论 本研究统计了非综合征型单侧完全性唇腭裂新生儿上颌牙槽的平均尺寸,前段牙槽的发育不足和健侧前段牙槽的外旋程度共同决定了单侧唇腭裂牙槽裂隙的严重程度。

关键词: 三维测量, 单侧完全性唇腭裂, 新生儿, 上颌牙槽

Abstract: Objective To investigate morphological characteristics of maxillary arches of unilateral complete cleft lip-and-palate (UCLP) newborns, and confirm the reliability and repeatability of a novel 3D measurement. Methods A total of 60 newborns with UCLP up to the mustard were selected. An intraoral scanner was applied to collect digital models of their initial maxillary arches and measurements were completed with Mimics software. In all, 25 items of maxillary alveolus were measured for each model twice, and then Bland-Altman analysis was done to check the consistency. All samples were divided into three groups according to morphological features, and comparative analysis was completed to study morphological differences between different groups. Results All measurements were in accordance with normal distribution and this novel 3D measurement showed clinically acceptable consistency. Length of the anterior segment of alveolus and angles of both the anterior and posterior segments of alveolus on the none-cleft side (NCS) were all greater than those on the cleft side (CS). Length of the anterior segment of alveolus on the NCS in Group 1 and 2 was significantly greater than that in Group 3. Besides, samples in Group 1 showed smaller width of the cleft and the arch in both anterior and middle parts, compared with other groups. Angular values showed that angle of the anterior segment of alveolus on the NCS in Group 1 was smaller than that of other groups. Conclusion The research summarizes average dimensions of the maxillary arches of non-syndromic UCLP newborns. Besides, it is observed that severity of cleft depends on both the insufficient length and the rotation angle of the anterior segment of alveolus on the NCS.

Key words: three-dimensional measurement, unilateral complete cleft lip and palate, newborn, maxillary alveolus

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