Abstract
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.
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