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Mesioangulation of mandibular second molars: A case report
Silvio Augusto Bellini-Pereira1, Maria Pia Seminario1, Rodrigo Naveda1
1Department of Orthodontics, Bauru Dental School, University of São Paulo, Brazil.
Journal of Orthodontics
|May 25, 2021
Summary
This case report presents a modified lingual arch for uprighting mesioangulated mandibular second molars. This simple orthodontic technique offers effective treatment with stable outcomes.
Area of Science:
- Dentistry
- Orthodontics
Background:
- Mesioangulation of mandibular second molars can complicate orthodontic treatment.
- Conventional methods for correcting this malocclusion may have limitations.
Observation:
- An 11-year-old patient presented with unilateral posterior crossbite, incisor crowding, and a mesioangulated right mandibular second molar.
- The second molar was uprighted using a modified lingual arch with a distal hook and elastic chains.
Findings:
- Orthodontic traction was applied monthly with 120g of force.
- After six months, the mandibular second molar achieved an upright position.
- Successful teeth leveling and alignment resulted in acceptable occlusal and aesthetic outcomes.
Implications:
- The modified lingual arch with a distal hook is a simple, effective alternative for managing mesioangulated mandibular second molars.
- This technique demonstrates minimal adverse effects and provides stable long-term results.
- This approach can be valuable for orthodontists treating similar molar malpositions.

