Your body is a complex system with various components working together to keep it performing at its optimum best. The parathyroid hormone (PTH) helps maintain calcium and phosphorus metabolism. It has an important role in bone and teeth mineralization. But what happens if the parathyroid gland isn't working properly? Various conditions point to problems with the PTH, like hypercalcemia. Learn more about hypercalcemia, its effects on your oral health, and treatment options.