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Updated: Jul 1, 2026

12:33
High-throughput Fluorometric Measurement of Potential Soil Extracellular Enzyme Activities
Published on: November 15, 2013
[Not Available]
Sarah Gebeile-Chauty1, Jérôme Hekimian, Jean-Jacques Aknin
1Département d'Orthopédie Dento-Faciale, Faculté d'Odontologie, rue Guillaume Paradin, 69372 Lyon Cedex 08, France.
L' Orthodontie Francaise
|September 13, 2008
Summary
Extracting second premolars in Class II division 1 malocclusion significantly increases third molar eruption potential. However, the risk of impacted third molars remains high, potentially leading to further extractions.
Area of Science:
- Orthodontics
- Dental Surgery
Context:
- Class II division 1 malocclusion often involves premolar extractions to correct anteroposterior discrepancies.
- Alternative non-extraction treatments exist, such as the DAC appliance.
Purpose:
- To investigate the influence of premolar extractions versus non-extraction treatments on third molar eruption in Class II division 1 malocclusion.
Summary:
- A study compared 30 Class II division 1 patients treated with extractions (including second lower premolars) and 30 treated without extractions.
- Extraction of second lower premolars increased third molar eruption rates from 10% to 50%.
Impact:
- Second premolar extractions significantly enhance third molar eruption, aligning with existing literature.
- Despite increased eruption, the risk of impaction remains substantial (50%), potentially necessitating further dental extractions.