口腔医学研究

口腔医学研究 ›› 2016, Vol. 32 ›› Issue (1): 63-66.DOI: 10.11839/kqyxzh.2016.01.016

• ·临床研究论著· • 上一篇    下一篇

青年人上颌中切牙临床牙冠分类研究

林子琦1,方慧敏1,张玮1,曹阳2,俞青2*   

  1. 1. 南京大学医学院 江苏 南京 210093;
    2. 南京大学医学院附属口腔医院 江苏 南京 210008
  • 收稿日期:2015-09-02 出版日期:2016-01-28 发布日期:2016-03-21
  • 通讯作者: 俞青,E-mail:624731309@qq.com
  • 作者简介:林子琦(1986~),女,山东滨州人,硕士,主要从事上颌中切牙形态学的研究。
  • 基金资助:
    国家自然基金南京航空航天大学协作项目(2014-27-280)

Study on the Classification of Clinical Crown of Youth Maxillary Central Incisors.

LIN Zi-qi1, FANG Hui-min1, ZHANG Wei1, CAO Yang2, YU Qing2.   

  1. 1. Medical School of Nanjing University, Nanjing 210093, China;
    2. Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, China
  • Received:2015-09-02 Online:2016-01-28 Published:2016-03-21

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摘要： 目的:验证美国塔夫斯大学牙学院分类指标是否适用于南京大学青年人的上颌中切牙的临床牙冠分类,并研究各分类牙冠近中邻接区位置。方法:采用数码照相技术获得114个上颌中切牙临床牙冠样本,根据分类指标分为尖圆形、卵圆形、方圆形,使用Digimizer测量样本的邻接区高度CS,牙冠长度CL,牙冠宽度CW,龈缘角度GA。结果:3组样本的CS/CL值,CW/CL值,GA值有统计学差异。结论:该指标适用于本实验样本分类;尖圆形中切牙近中邻接区位置较低,卵圆形和方圆形的较高。

关键词: 上颌中切牙分类, 临床牙冠, 邻接区

Abstract: Objective: To evaluate the applicability of the Tufts University Clinical Crown Classification Index to the youth maxillary central incisors in Nanjing, China, and compare the contact area positions of each classification. Methods: Digital photography was used to get 114 maxillary central incisor samples. According to the Index, all samples were divided into 3 groups: triangle, round and square types. Then the crown length (CL), width (CW), contact surface (CS), gingival angle (GA) were tested by Digimizer. Results: There was significant difference among 3 groups with respect to CS/CL ratios, CW/CL ratios and GA values. Conclusion: The Tufts University Clinical Crown Classification Index is applicable to the youth maxillary central incisors in Nanjing, China. The contact area of triangle group is lower than the other two groups.

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