Radioactive Phosphate Permeability in Dentin Following the Use of Medicaments

Publisher Website
Google Scholar
Abstract
Various medicaments are used in cavity prepns. prior to the insertion of filling materials. They are used not only as sterilizing agents but with the expectancy that they will coagulate the dentinal lymph and fluid, thereby mechanically sealing off the dentinal tubules and thus decreasing the permeability of the dentin. Clinically, it would be desirable to decrease dentin permeability so as to diminish pulpal reaction to external stimuli and to lessen the possibility of bacterial invasion and the opportunity for recurrent decay. The actual effect these medicaments have on the penetration of P32 in dentin was studied in comparison with corresponding controls. While Oxyphosphate Cement proved to be impervious to P32, penetration of dentin was highest in the phenol-treated cavity and less in the order indicated: phenol followed by alcohol, fluorine, silver nitrate followed by eugenol and cavity varnish.
Keywords