EFFECTS OF ACTIVATOR TREATMENT - EVIDENCE FOR THE OCCURRENCE OF 2 DIFFERENT TYPES OF REACTION
EFFECTS OF ACTIVATOR TREATMENT - EVIDENCE FOR THE OCCURRENCE OF 2 DIFFERENT TYPES OF REACTION
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DOI：
10.1093/ejo/3.3.205
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发表时间：
1981-01-01
影响因子：
2.6
通讯作者：
LUDER, HU
中科院分区：
文献类型：
--
作者：
LUDER, HU
对12名男孩和13名女孩用激活器治疗的11类1分类错牙合进行了纵向头影测量研究。研究结果与未接受治疗的24名男孩和15名女孩的对照组进行了比较。研究开始时，这些儿童的年龄约为9岁，他们接受了约两年的治疗或观察。研究了下颌髁突生长的可能变化，并将结果与先前发表的关于激活剂作用模式的假设进行了比较。由于对照组男孩和女孩的生长增量存在显著差异，性别在统计学上被视为单独的组。下颌骨的生长被发现改变激活剂治疗，在男孩的增长增加，并重新定向后，而在女孩的增长只是重新定向。治疗对上颌骨和牙弓的影响不同。观察结果的差异可能是由矫治器垂直激活量的变化所解释的，但不能排除男孩和女孩通常反应不同的可能性，也有可能至少部分差异是由于与初始头影测量模式中某些特征相关的特殊生长模式。没有迹象表明，家电的行动模式导致不同的反应。结果作为一个整体支持的概念，激活器作为一个器具，转换弹性软组织力的骨骼和牙齿单位。
A longitudinal cephalometric study was made of 12 boys and 13 girls with Class 11, Division 1 malocclusion treated with activators. The findings were compared with an untreated control group of 24 boys and 15 girls. The children were aged about 9 years at the start of the investigation and they were treated, or observed, for about two years.Possible alterations of mandibular condylar growth were investigated and the results were compared with previously published hypotheses on the mode of action of the activator.Since there were significant differences in the growth increments of control boys and control girls, the sexes were treated statistically as separate groups. Mandibular growth was found to be altered by activator therapy; in the boys growth was increased and redirected posteriorly while in the girls growth was only redirected. The maxilla and the dental arches were differently affected by the treatment. The differences in the observed results are probably explained by variation in the amount of vertical activation of the appliance but the possibility that boys and girls generally react differently could not be excluded.It is also possible that at least some of the differences were due to special growth patterns associated with certain features in the initial cephalometric pattern. There was no indication that modes of appliance action led to the different reactions. The results as a whole support the concept of the activator as an appliance which transduces elastic soft tissue forces to the skeletal and dental units.