Pediatric Dentistry · single question

Which cells are primarily responsible for creating the bony eruption pathway that allows a tooth to erupt into the oral cavity?

  1. Osteoclasts (resorbing bone ahead of the erupting tooth, coordinated with dental follicle signaling)
  2. Odontoclasts (primarily responsible for resorbing primary tooth roots, not the bony eruption pathway)
  3. Ameloblasts
  4. Cementoblasts
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Correct answer: A. Osteoclasts (resorbing bone ahead of the erupting tooth, coordinated with dental follicle signaling)

Osteoclasts, recruited and activated through signaling from the dental follicle surrounding the developing tooth, resorb the overlying alveolar bone to create the pathway through which the tooth erupts. This is a distinct process from primary tooth root resorption (mediated by odontoclasts), which facilitates exfoliation of the predecessor tooth to make room for its permanent successor.

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