This prospective clinical study will evaluate the effect of high pull headgear for molar intrusion, compared with the control group, in adolescent patients with open bite malocclusion. The study sample will consist of 24 patients with anterior open bite divided equally in two groups. The sample will be collected consecutively from patients attending the Orthodontic Department at Damascus university. A modified version of the OBA (Open Bite Appliance),introduced by Erverdi and Usumez, will be applied for all patients. High pull headgears will be used in the first group, while, in the second (control) group, Open Bite Appliances will be used only. The skeletal and dentoalveolar changes occurring after intrusion of posterior teeth will be assessed by using posteroanterior and lateral cephalometric radiographs; pre- and post- treatment changes for each group will be evaluated.
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Overbite
Timeframe: This variable will be evaluated twice; T0 before treatment, and T1 at the end of molar intrusion which will be abroximately after 7 months.