A 9 year old child has increased horizontal anterior bone loss, cementum and on test shows excretion of phophoethanolamine in the urine. The child is suffering from________________?
Correct answer: A. Hypophosphatasia
- A. Hypophosphatasia
- B. Vit. D resistant Rickets
- C. Juvenile periodontitis
- D. Osteomalacia
Explanation
Hypophosphatasia results from deficient alkaline phosphatase activity, causing defective bone and cementum mineralisation and urinary excretion of phosphoethanolamine. Early tooth loss and horizontal alveolar bone loss are important oral clues.
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