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Osteogenesis imperfecta type I with unusual dental abnormalities.
L S Levin1, R J Young, R E Pyeritz
1Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins Medical Institutions, Baltimore, Maryland.
American Journal of Medical Genetics
|December 1, 1988
Summary
This study describes a family with a distinct type of osteogenesis imperfecta (OI). Dental abnormalities in both deciduous and permanent teeth were observed in affected individuals with this rare bone disorder.
Area of Science:
- Genetics
- Dentistry
- Orthopedics
Background:
- Osteogenesis imperfecta (OI) is a group of inherited disorders characterized by bone fragility.
- Dominantly inherited forms of OI are well-documented, often presenting with bone fractures, blue sclerae, and hearing loss.
Observation:
- A large kindred with dominantly inherited osteogenesis imperfecta exhibited unique dental abnormalities.
- Dental findings included abnormal coloration and enlarged pulps in deciduous teeth, and altered pulp morphology with pulp stones in permanent teeth.
Findings:
- Deciduous teeth showed normal or blue-grey coloration, larger pulps, pulp obliteration, and crown-root constriction.
- Permanent teeth presented with oval pulp chambers, apical extensions, large pulp stones, narrow canals, and thin roots.
- A distinct radiolucency was noted in the anterior mandible of one patient.
Implications:
- These dental findings suggest a novel presentation of osteogenesis imperfecta, potentially a new subtype.
- The specific dental anomalies may serve as diagnostic markers for this OI variant.
- Further research is warranted to understand the genetic basis and clinical spectrum of this OI syndrome.