| 韩培辉丁寅△ 李永明王雷张明烨杨芳王天虎.上颌结节在不同年龄阶段发育特征的对照研究[J].,2012,12(10):1889-1892 |
| 上颌结节在不同年龄阶段发育特征的对照研究 |
| Developmental Characteristics of Maxillary Tuberosity at Different Ages |
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| DOI： |
| 中文关键词: 上颌结节 年龄 发育 全口曲面断层片 |
| 英文关键词: Maxillary tuberosity Age Development Panoramic radiographs |
| 基金项目: |
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| 中文摘要: |
| 目的：对上颌结节在不同年龄阶段的发育进行研究，并进行组间比较，得出上颌结节的发育特征。方法：全部病例均采用同
一台牙科X 线机拍摄全口曲面断层片，拍摄条件选择1.1 倍恒定放大率模式。根据纳入标准选择病例样本180 例，按年龄分为6
个实验组，各实验组再按性别分组，对比组间各测量指标的差异。结果：男、女性别组均在M1、M2、M3、L4、L5、L7、L8、L10、L11 等
测量指标中存在显著性差异。结论：上颌结节的发育并不是随着年龄的增长而平稳增长的，其发育存在高峰期，即10-11 岁年龄
段，在此年龄段上颌结节在垂直和水平距离上都有快速的发育。而其因素主要来自于上颌第二、第三磨牙的牙冠和牙根发育，其
次来自于骨骼的净增长。 |
| 英文摘要: |
| Objective: To study the development of maxillary tuberosity at the different ages, and to compare the features of
maxillary tuberosity between the different groups. Methods: All cases were observed with the same oral dental X-ray film to obtain
panoramic radiographs. The constant shooting condition is 1.1 times magnification mode. A total of 180 cases fulfilled with eligibility
criteria. They were divided into 6 experimental groups according to the age. Then, each group was classified according to the sex. We
compared the difference among these groups. Results: There was a significant difference of M1, M2, M3, L4, L5, L7, L8, L10, L11 and
other measurement indicators among the different age groups. Conclusion: The development of the maxillary tuberosity is not at a steady
growth with increasing age. The developmental peak is at 10-11 years old. The development of maxillary tuberosity at this age is very fast
in both vertical and horizontal distance. Associated factors are primarily the crown and root development of the maxillary second and
third molars, and secondly the net increase of the bone. |
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