摘要
目的:观察分析长牵引钩对上颌中切牙控根效果并探讨其有效性。方法:随机选取27例符合纳入标准的正畸治疗患者,采用长牵引钩对上切牙进行控根治疗,并对控根前后头颅侧位片进行测量和比较。结果:1-SN(°)和1-NA(°)在控根后均有明显增大,差异有统计学意义(P<0. 05)。1-NA(mm)也有一定程度增大,差异无统计学意义(P>0. 05)。结论:长牵引钩控根是一种简单、有效的上切牙控根方法。
Objective: To analyze a root-controlling method and explore its effectiveness.Methods: Twenty-seven patients eligible for inclusion were randomly selected from orthodontic department of Anyang stomatological hospital.Long traction hooks were used for the treatment of the root-controlling over upper anterior teeth.Related measurements were compared between the before and after treatment stages.Results: After a treatment of( 4. 1±1. 2) months on average of the patients.The1-SN angle and 1-NA angle were increased,such difference was statistically meaningful( P< 0. 05). And 1-NA distance increased,which,however,was statistically insignificant( P> 0. 05).Conclusion: The long traction hook is simple and effective in controlling of the upper incisor teeth torque.
作者
孙留振
SUN Liu-zhen(Department of Orthodontics, The Sixth People's Hospital of Anyang City, Henan Anyang 455000, China)
出处
《临床口腔医学杂志》
2019年第5期290-293,共4页
Journal of Clinical Stomatology
关键词
控根
上切牙
长牵引钩
Root torquing control
Upper incisor
Long traction hook
