Histological Considerations of Direct Pulp Capping Agents
The results from this study showed a variety of pulpal responses to various calcium hydroxide materials when placed directly on the dental pulp. Two of the materials proved to be more successful at stimulating reparative dentin bridging and healing of the underlying pulp tissue. The remainder of the pulp capping agents were ineffective at healing the pulp and forming a reparative dentin bridge. When teeth were capped with these other agents, the pulp showed necrosis and chronic inflammation.
Abstract A new saponin has been isolated from the molluscicidal extract of the fruits of Tetrapleura tetraptera . Chemical, enzymatic and spectral methods (D/CIMS, 1 H, 13 C NMR) showed that it was a monodesmosidic diglycoside of the rare sapogenin 27-hydroxyolean-12(13)-en-28-oic acid.