Uner O, Akkaya S, Buyruk F
Turk Ortodonti Derg. 1989 Apr;2(1):92-102.
In this study which the effects of activator and activator + anterior high-pull headgear on the growth direction of skeletal class 2 cases for a period of approximately 9 months; 33 cases having a mean age of 10.59 years; ANB angles 4.5 degrees and over were studied. Activator treatment has been applied to the 11 of the 22 treatment cases, the others have had the activator + anterior high-pull headgear treatment. The control group, 11 patients, has only been observed in terms of the growth and development without having any treatment. At the end of the study; it was found that the decrease in ANB angle and the increase in SL dimension in the treatment groups; the increase in anterior lower face height in the activator group and the increase in the ratio of posterior to anterior face height were statistically significant.
在本研究中，对激活器和激活器+前方高位牵引矫治器对Ⅱ类骨骼型病例生长方向的影响进行了约9个月的观察；研究对象为33例平均年龄10.59岁、ANB角4.5度及以上的患者。22例治疗病例中的11例采用激活器治疗，其余病例采用激活器+前方高位牵引矫治器治疗。对照组11例患者仅进行生长发育观察，未接受任何治疗。研究结束时发现，治疗组ANB角减小、SL径增加；激活器组前下脸高增加，后前脸高比值增加，差异均有统计学意义。
