中华口腔医学研究杂志(电子版) ›› 2009, Vol. 3 ›› Issue (04) : 419 -423. doi: 10.3877/cma.j.issn.1674-1366.2009-04-012 × 扫一扫
临床研究
收稿日期:
出版日期:
通信作者:
Li-ping WU1,†(), Bing CAI1, Xing-hua LU1
Received:
Published:
Corresponding author:
吴莉萍, 蔡斌, 卢新华. Beta 角评价前牙反患者颌骨矢状关系的准确性分析[J/OL]. 中华口腔医学研究杂志(电子版), 2009, 3(04): 419-423.
Li-ping WU, Bing CAI, Xing-hua LU. Accuracy of Beta angle in the assessement of sagittal jaw relationship in patients with anterior crossbite[J/OL]. Chinese Journal of Stomatological Research(Electronic Edition), 2009, 3(04): 419-423.
目的
探讨Beta 角判断替牙期与恒牙期前牙反患者颅面矢状关系的可靠程度。
方法
应用X 线头颅定位侧位片,比较替牙期与恒牙期前牙反患者的Beta 角、ANB角、Wits 值和APDI 指数的差异,并进行相关性和变异程度分析。
结果
替牙期与恒牙期前牙反患者Beta 角间差异有统计学意义(P <0.05);Beta 角与ANB 角、Wits 值和APDI 指数显著相关(P <0.05),但变异较ANB 角和Wits 值小,与APDI 指数接近。
结论
Beta 角可准确评价前牙反患者的颌骨矢状关系。
Objective
To assess the reliability of using the Beta angle in judging sagittal jaw relationship of anterior crossbite in adolescence and permenant dentition.
Methods
By using X-ray cephalometric of anterior crossbite cases, the difference of Beta angle, ANB, Wits and APDI between adolescence and permenant dentition were compared, the coefficients of variation and correlationship were studied.
Results
There are significant difference of Beta angle between adolescence and permenant dentition, and significant correlation of the Beta angle with ANB,Wits and APDI, The coefficients of variation of the Beta angle were much smaller than ANB and Wits, but approaching APDI.
Conclusion
The Beta angle can exactly assess sagittal jaw relationship of anterior crossbite in adolescence and permenant dentition.