Response Of Dental Pulp Research Articles

The Physical and Biologic Properties of Cavit

The physical properties of Cavit and the response of dental pulp to this temporary filling material were tested. Cavit has a high linear expansion that apparently is caused by water sorption and that probably produces its sealing effect. Insertion of Cavit into dry cavity preparations caused aspiration of odontoblasts and an accompanying pain; no pain was reported in water-spatulated preparations or in moistened cavities. Deposition of reparative dentin under Cavit-filled teeth equaled that under teeth filled with zinc oxide-eugenol. The film thickness of Cavit makes it an unsatisfactory cementing material for temporary crowns. It may be useful as a base-insulating material.

The response of human dental pulp to various physical and chemical agents: A correlated clinical and histopathologic study

Exposed pulpal tissue in fifty caries-free intact teeth was subjected to six different pulp-capping procedures. Histologic evaluations revealed that 8 weeks after treatment complete pulp healing was not evident following any procedure. Calcium hydroxide resulted in a connective tissue barrier around the area of exposure, whereas zinc oxide-eugenol produced a mild chronic inflammation. The use of Hyfrecator in the pulpal exposed area resulted in severe degenerative changes.

Biology of the pulp and its defense

To evaluate the response of dental pulp to inflammation (I) and secondary dentin formation (D), an ID index was proposed and utilized in experimental studies involving 166 human noncarious teeth. Cavity preparation and filling materials were used as the exciting factors. Subjects studied included range of pulpal response, sequence of events in pulpal response, pulpal response to the cutting of dentin, influence of cavity depth on pulpal response, and influence of age of the patient on pulpal response. The biology of the pulp is discussed in terms of its histophysiology and its experimental response.