[Indication and application of the cervical traction headgear].
Two types of cervical headgear were presented, the cervical traction with caudal tip and with cranial tip of the long outer bow. The results of an actual long-term follow-up study show long-term stability after distalization with both appliances. The indication and application of the cervical traction are described as a two-term movement. Type I, the cervical headgear with long outer bow tipped 10 to 15 degrees caudal to the inner bow allows to move the crown of the molar distally and to upright mesially tipped molars; the classic indication is the dentoalveolar class II division 1. Type II with long outer bow and tip of 10 to 15 degrees cranial is indicated to upright the roots distally in cases of dentoalveolar and/or skeletal class II with deep overbite. As a concluding remark the recommendation is made that the indications for extraction therapy are understood and that cervical headgears are not seen as a substitute for extractions.
Kahl
B
B
Universität Köln, Poliklinik für Kieferorthopädie.
D000293:Adolescent; D002648:Child; D005115:Extraoral Traction Appliances; D006801:Humans; D009971:Orthodontics, Corrective / Q000379:methods*
Indikation und Wirkungsweise des zervikalen Headgears.