[Dentinal dysplasia type I]

Area of Science:

• Dentistry
• Genetics
• Oral Pathology

Context:

• Dentinal dysplasia is an extremely rare hereditary dentin formation disorder.
• It presents with characteristic anomalies in tooth root and pulp morphology.
• Diagnosis can be challenging due to its rarity and potential overlap with other conditions.

Purpose:

• To report a case of dentinal dysplasia observed during a prosthodontic assessment.
• To investigate the familial occurrence of the condition.
• To describe the clinical, radiographic, histologic, and ultrastructural features of dentinal dysplasia.
• To differentiate dentinal dysplasia from dentinogenesis imperfecta.

Summary:

• A patient presenting for prosthodontic evaluation exhibited classic signs of dentinal dysplasia, including short, blunt roots and obliterated pulp spaces.
• Familial investigation confirmed the hereditary nature of the condition, with the father and two siblings also affected.
• Detailed clinical, radiographic, histological, and scanning electron microscopic analyses were performed.
• Key features differentiating it from dentinogenesis imperfecta were discussed.

Impact:

• Highlights the importance of recognizing rare hereditary dental anomalies.
• Provides a comprehensive description of dentinal dysplasia for diagnostic reference.
• Emphasizes the value of family history in diagnosing genetic disorders.
• Contributes to the differential diagnosis of dentinogenesis imperfecta.