The effect of wear on the cheek teeth and associated dental tissues of the lizard Uromastix aegyptius (Agamidae)

G. S. Throckmorton

Research output: Contribution to journalArticle

16 Scopus citations


Serial coronal sections of the teeth and their surrounding tissues in the agamid lizard, Uromastix aegyptius, were examined with the light microscope in order to determine how these structures change as the teeth wear. Because new teeth are added only at the posterior end of the tooth row and older teeth are not replaced, the series of sections included the youngest as well as the oldest teeth. Two types of changes occur as the teeth become older: bone under the teeth changes from cancellous to compact, and the pulp chamber of the tooth is obliterated. Although the labial surface of the dentary lacks a periosteal covering and some of the bone lacks any covering at all, it remains functional throughout the life of the animal.

Original languageEnglish (US)
Pages (from-to)195-207
Number of pages13
JournalJournal of Morphology
Issue number2
StatePublished - May 1979


ASJC Scopus subject areas

  • Animal Science and Zoology
  • Developmental Biology

Cite this