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Atypical migration of an impacted lower third molar
1Department of Stomatology, School of Dentistry, University of Otago, Dunedin.
The New Zealand Dental Journal
|February 25, 2000
Summary
An impacted lower third molar unusually migrated horizontally under adjacent molar roots over 13 years in an adult. Surgical removal was necessary due to this rare, atypical tooth movement.
Area of Science:
- Dentistry
- Oral Surgery
- Radiology
Background:
- Impacted third molars are common, but atypical migration is rare.
- Understanding tooth movement patterns is crucial for diagnosis and treatment planning.
Observation:
- A 42-year-old woman presented with an impacted lower third molar.
- Serial radiographs over 13 years documented significant horizontal migration.
- The tooth moved from a disto-angular position to beneath the roots of the first permanent molar.
Findings:
- The impacted third molar demonstrated unusual, slow, horizontal migration over 13 years.
- Soft tissue was found and removed from the bone posterior to the tooth.
- This migration pattern is highly atypical for an adult patient.
Implications:
- This case highlights the potential for delayed and unusual tooth movement in adults.
- It underscores the importance of long-term radiographic monitoring for impacted teeth.
- Further research into the mechanisms of atypical tooth migration is warranted.
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