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Pre-maxillary hypohyperdontia: a report of two cases
L M Bowdin1, S Wong1, R P Anthonappa2
1Paediatric Dentistry, UWA Dental School, The University of Western Australia, 17 Monash Avenue, Nedlands, WA, 6009, Australia.
Summary
Hypodontia and hyperdontia, known as hypohyperdontia, can occur together, particularly in the premaxillary region. Management requires careful diagnosis, multidisciplinary planning, and long-term monitoring for potential sequential supernumerary teeth.
Area of Science:
- Dentistry
- Oral and Maxillofacial Surgery
- Pediatric Dentistry
Background:
- Hypodontia (missing teeth) and hyperdontia (supernumerary teeth) are typically viewed as opposing dental anomalies.
- However, their coexistence, termed hypohyperdontia, presents unique clinical challenges.
Observation:
- This report details two cases of hypohyperdontia exclusively affecting the premaxillary region.
- Diagnosis and management of premaxillary hypohyperdontia pose significant difficulties.
- Case 1 exhibited delayed development of a supernumerary tooth in the mandibular region (tooth 35) after 24 months.
Findings:
- Hypohyperdontia can manifest solely in the premaxillary area, complicating diagnosis.
- Sequential development of supernumerary teeth is a potential long-term complication.
Implications:
- Effective management of premaxillary hypohyperdontia necessitates a multidisciplinary approach.
- Extended follow-up is crucial for identifying and addressing sequential dental anomalies.
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