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The aim of this study is to compare the treatment results when treating Class II division 1 malocclusion using the Van Beek-Headgear Activator combination (vBHGA) appliance versus using the Andresen activator.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Group A | Active Comparator | 12 patients will receive Van-Beek activator and a headgear |
|
| Group B | Active Comparator | 12 patients will receive Andresen activator |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Van-Beek activator and a headgear | Device | 12 patients will receive Van-Beek activator and a headgear |
|
| Measure | Description | Time Frame |
|---|---|---|
| treating Class II division 1 malocclusion | rate of mandibular and maxillary growth | at 8 months |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Alazhar University | Cairo | Cairo Governorate | 11865 | Egypt |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 9753820 | Background | Altenburger E, Ingervall B. The initial effects of the treatment of Class II, division 1 malocclusions with the van Beek activator compared with the effects of the Herren activator and an activator-headgear combination. Eur J Orthod. 1998 Aug;20(4):389-97. doi: 10.1093/ejo/20.4.389. |
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| Andresen activator | Device | 12 patients will receive Andresen activator. |
|