Vital staining of coronal dentin in monkey teeth.
Vital staining of monkey incisor teeth with the incisal dentin exposed to the oral environment by attrition was carried out, with the use of a number of dyes (pH and redox indicators). There was a distinct staining of the coronal dentin, regardless of which dye was introduced into the pulpal cavity. The exposed dentin was stained like the unaffected dentin, with the exception of a narrow centrally located zone that extended from the tip of the original pulp horn to the incisal edge of the tooth. The suggestion is that this zone is not unstained because of exposure of the dentin to the oral environment, but because it coincides with an area of the tissue where the pulpal ends of the dentinal tubules are blocked by atubular hard tissue normally laid down in the pulp horn of incisor teeth.
D000818:Animals; D003804:Dentin / Q000033:anatomy & histology*; D003809:Dentin, Secondary / Q000473:pathology; D000882:Haplorhini; D013194:Staining and Labeling / Q000379:methods; D014072:Tooth Abrasion