Hyperparathyroidism Jaw Changes — NDEB AFK MCQ
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Correct answer: A — Hyperparathyroidism
Hyperparathyroidism causes generalised skeletal demineralisation including the jaws. Excess parathyroid hormone (PTH) increases osteoclastic bone resorption, causing diffuse osteoporosis, loss of lamina dura (an early and characteristic radiographic sign), ground-glass trabecular pattern, and brown tumours (central giant cell lesions). Primary hyperparathyroidism is caused by parathyroid adenoma; secondary is caused by chronic renal failure. Serum calcium is elevated and phosphate is decreased in primary hyperparathyroidism.
Reference: Neville – Oral and Maxillofacial Pathology, 4th ed., 2016