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Soft tissue facial profile changes following functional appliance therapy
Cátia Quintão1, Ione Helena, V P Brunharo
1Department of Orthodontics, University of Rio de Janeiro, Brazil. cquintao@artnet.com.br
European Journal of Orthodontics
|August 23, 2005
Summary
Twin block (TB) functional appliance treatment significantly improved facial profiles in Class II division 1 malocclusion patients. This orthodontic intervention led to better facial harmony through dentoskeletal changes.
Area of Science:
- Orthodontics
- Dentofacial Orthopedics
- Cephalometric Analysis
Background:
- Class II division 1 malocclusion presents challenges in achieving facial harmony.
- Functional appliances are utilized to correct skeletal discrepancies.
- Evaluating the specific effects of the Twin Block appliance on facial profile is crucial.
Purpose of the Study:
- To assess the impact of the Twin Block (TB) functional appliance on facial profile changes.
- To analyze dentoskeletal alterations contributing to profile modification.
- To compare treatment effects against natural growth in a control group.
Main Methods:
- A sample of 38 patients with Class II division 1 malocclusion was studied.
- Nineteen patients received Twin Block appliance treatment; 19 served as controls.
- Lateral cephalograms were taken at baseline and after one year for analysis.
Main Results:
- Twin Block treatment resulted in significant facial profile improvement.
- Key changes included upper lip retraction and anterior soft tissue pogonion movement.
- Observed changes correlated with underlying dentoskeletal modifications.
Conclusions:
- The Twin Block appliance effectively enhances facial harmony in Class II division 1 malocclusion.
- Treatment-induced dentoskeletal changes positively influence the soft tissue facial profile.
- The TB appliance offers a viable orthodontic solution for improving facial aesthetics.