北京地区126名正常[牙合]青少年颅面部三维测量初探  

Three-dimensional analysis of craniofacial growth in adolescents with normal occlusion in Beijing

作　　者：高伟民[1] 梁舒然 白玉兴[1] 

机构地区：[1]首都医科大学口腔医学院正畸科,100050

出　　处：《中华口腔医学杂志》2012年第12期735-738,共4页Chinese Journal of Stomatology

基　　金：首都医学发展科研基金（2007-1032）

摘　　要：目的对北京地区正常[牙合]青少年颅面部的三维生长发育情况进行初步探讨。方法筛选正常验青少年样本126人，分为4个年龄组，其中4岁组53人、7岁组30人、10岁组27人、13岁组16人。对受试者进行锥形束CT扫描，收集生长发育相关资料并进行颅面部三维测量。结果正常验青少年三维方向上线距测量项目增加显著，从4岁到13岁，上颌骨长度Co．A左、右侧增加（14．55±1．15）和（13．66±1．14）mm，下颌骨长度Co-Gn左、右侧增加（22．89±1．40）和（22．82±1．38）mm；上切牙突度U1-NA左、右侧增加（2．20±0．44）和（1．60±0．46）mm，下切牙突度L1-NB左、右侧增加（3．12±0．98）和（2．25±0．48）mm；上下颌宽度（CoL—CoR和CoL—GoR）分别增加（13．31±1．21）和（18．59±1．40）mm，前面高N-Me增加（18．03±1．32）mm。SN．PP、SN—MPL基本保持不变。结论本组北京地区126名正常[牙合]青少年颅面部在三维方向上均有明显生长，存在一定的快速期，且生长发育在三维方向上基本协调。Objective To analyze craniofacial growth three-dimensionally for adolescents with normal occlusion in Beijing. Methods One hundred and twenty-six adolescents with normal occlusion were selected according to the criteria. The sample was divided into four age groups （53 within 4 years, 30 within 7 years, 27 within 10 years and 16 within 13 years）. Information of growth was collected. Three-dimensional cephalometric system based on cone-bean CT was established. Results From 4 to 13 years Co-A increased （ 14. 55 ± 1.15） mm on average on the left and （ 13.66 ± 1.14） mm on the right, and Co-Gn increased （22. 89 ± 1.40） mm on the left and （22. 82 ± 1.38） mm on the right; and U1-NA increased （2. 20 ± 0.44） mm on the left and （1.60 ± 0.46） mm on the right; and CoL-CoR and GoL-GoR increased （13.31 ±1.21） mm and （18.59 ± 1.40） mm, and N-Me increased （18.03 ± 1.32） mm. SN-PP and SN-MPL basically remained unchanged. Conclusions Adolescents with normal occlusion in Beijing grew obviously in three-dimensions and developed harmoniously.

关 键 词：上颌面部发育 锥束计算机体层摄影术 正畸学 青少年 

分 类 号：R78[医药卫生—口腔医学]