Recorded in Support of "Save the Children". Duration 2h 30m
Speaker Dr. Giorgio Fiorelli
Prices
3 days 60 CHF
30 days 80 CHF
February 22, 2025
Meeting Purpose
To provide an educational webinar on deep bite correction techniques in orthodontics, while raising funds for Save the Children. All those who attended the course in the live session did directly a donation to the charity organization and we have raised more than 1,500 Euro, with this project only.
Key Takeaways
- Deep bite correction involves careful diagnosis, treatment planning, and biomechanical considerations
- Segmental mechanics offer more precise control for intrusion compared to continuous archwires
- Force systems and point of force application can be tailored to achieve different tooth movements (e.g. pure intrusion vs. intrusion with proclination)
- Anchorage control and preserving posterior occlusion are critical for successful deep bite correction
Topics
Deep Bite Prevalence and Diagnosis
- Deep bite tends to become more severe with age
- Important to assess skeletal pattern, severity, incisor display, and posterior occlusion
- Treatment goals should be set based on comprehensive analysis
Extrusion Mechanics
- Posterior extrusion can increase vertical dimension but has stability concerns
- Extrusion is generally faster/easier to achieve than intrusion
- Various methods discussed: functional appliances, headgear, elastics, segmental mechanics
Intrusion Mechanics
- Continuous archwire approaches (e.g. reverse curve of Spee) have limitations for significant intrusion
- Segmental approach with cantilevers or base arch offers more precise control
- Force magnitude should be light (20g per tooth) to minimize side effects
- Point of force application and cantilever shape determine resultant tooth movement
Biomechanical Considerations
- Center of resistance location impacts tooth movement
- Moment-to-force ratio determines tipping vs. bodily movement
- Harmonic vs. logarithmic cantilever bends produce different force systems
- Anchorage control is critical, especially for canines lacking occlusal stops
Clinical Applications
- Case examples showed intrusion combined with various tooth movements (proclination, retraction, etc.)
- Segmental mechanics allow simultaneous correction of multiple issues
- TADs may be needed for anchorage in severe cases or compromised dentitions
Next Steps
- Attendees encouraged to further study biomechanics principles