Pediatric Dentistry · single question

Which hormone affects tooth eruption?

  1. PTH (Parathyroid Hormone)
  2. Thyroxine
  3. Cortisol
  4. Insulin
Show answer and explanation

Correct answer: B. Thyroxine

Thyroxine (thyroid hormone) plays a critical role in tooth eruption. Hypothyroidism (insufficient thyroxine) leads to delayed tooth eruption and delayed shedding of primary teeth. This is a well-documented finding in children with hypothyroidism. Parathyroid hormone (PTH) primarily regulates calcium and phosphate metabolism and bone remodeling, but it is not the primary hormone governing tooth eruption timing. Growth hormone also contributes to overall jaw development, but thyroxine is the hormone most directly associated with the eruption schedule.

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