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Clinical modification in root correction phase in segmented arch technique.
Daniel Ianni Filho1, Klaus Fernando Cardoso Bernardo, Adriana Prado Calheta
1Alpha Smile Dentistry Courses and Research Center, Campinas, Brazil. hcamp@terra.com.br
World Journal of Orthodontics
|March 22, 2006
Summary
The segmented arch technique helps close extraction spaces with minimal anchorage loss. A NiTi spring can prevent space reopening during the root correction phase in orthodontic treatment.
Area of Science:
- Orthodontics
- Biomaterials Science
Background:
- The segmented arch technique is crucial for managing anchorage during orthodontic tooth movement.
- Closing extraction spaces while maintaining anchorage is a persistent clinical challenge.
Purpose of the Study:
- To discuss the root correction phase in segmented arch orthodontics.
- To analyze the force systems and space reopening tendencies during this phase.
- To evaluate a closed Nickel-Titanium (NiTi) spring as a solution.
Main Methods:
- Review of the biomechanical principles of the segmented arch technique.
- Analysis of force systems during the root correction phase.
- Clinical application and evaluation of a closed NiTi spring.
Main Results:
- The differential moment/force ratio in segmented arches minimizes anchorage loss.
- Space reopening is a common clinical issue during root correction.
- A closed NiTi spring effectively prevented space reopening in clinical scenarios.
Conclusions:
- The segmented arch technique offers controlled space closure with minimal anchorage loss.
- Closed NiTi springs are a viable clinical option to prevent space reopening during root correction.