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Updated: Jun 28, 2026

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Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology
Published on: August 22, 2022
An adolescent patient with multiple impacted teeth
Eiji Tanaka1, Aki Kawazoe, Saika Nakamura
1Department of Orthodontics and Craniofacial Developmental Biology, Hiroshima University Graduate School of Biomedical Sciences, Hiroshima, Japan. etanaka@hiroshima-u.ac.jp
The Angle Orthodontist
|October 25, 2008
Summary
This case study details the successful orthodontic treatment of multiple impacted permanent teeth in an adolescent. Early intervention using appliances guided eruption and corrected occlusion, preventing further complications.
Area of Science:
- Dentistry
- Orthodontics
- Pediatric Dentistry
Background:
- Multiple impacted permanent teeth are rare, particularly without systemic conditions.
- Delayed eruption of first molars and submerged deciduous teeth prompted investigation.
Observation:
- A 9-year-old boy presented with unerupted permanent teeth, including first molars, and a submerged deciduous second molar.
- Panoramic radiography revealed unerupted permanent teeth, with poor prognosis for spontaneous eruption of first molars.
Findings:
- Orthodontic treatment involved lingual and segmental arch appliances to guide eruption of impacted first molars, subsequently inducing premolar eruption.
- Impacted mandibular second molars were corrected using lingual arch auxiliaries.
- Multibracket appliances and premolar extractions facilitated alignment, achieving a Class I molar relationship within 22 months.
Implications:
- Early orthodontic intervention for multiple impacted teeth in adolescents is crucial.
- Timely treatment can prevent secondary complications like root dilacerations and ankylosis.
- Successful management ensures long-term occlusal stability and function.
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