Ca and P concentrations of the urodele tooth as revealed by electron microprobe analysis.

The electron microprobe analysis has been used to determine the concentrations of Ca and P in different regions of functional teeth in adult Salamandra salamandra (Amphibia, Urodela). Ca and P levels were found to be more elevated in the dentine shaft below the apex than in its basal part and in the pedicel. The concentrations are similar to those measured in teeth of higher vertebrates.