[Influence of hydrone on the dental pulp as compared to other drugs].

The possibility of application of gel-collagen-hydronic sponge was examined on calf teeth. The action was observed after the 4, 7 , 14, 21 and 28 days. The biological properties of the sponge alone were examined in the close contact to dental pulp. The reaction of dental pulp to this contact was settled. Simultaneously the application of this plastic was examined as a ground of different materials usually applied in the treatment of dental pulp diseases. The reaction of dental pulp to the close contact of gel-collagen-hydronic sponge was compared to the action of the sponge additionally suturated with a 0.5% solution of Cortisone, the sponge mixed with Framycoin powder, or saturated with a mixture of 0.5% solution of Cortisone and Framycoin the collagenic sponge, Caryosan, Calxyd, and to the reaction of uncovered and untreated dental pulp. It was ascertained that gel-collagen-hydronic sponge contacted with calf's dental pulp doesn't impede the composing of osseous-dentinal barrier and its porosity is gradually filled up with a numerous cell elements, later also with strands of tissue. The sponge may be applicated as a ground of examined materials. Within these materials the best composing of osseous-dental barrier was found after the application of Calxyd and then successively after the application of Caryosan, hydronic sponge alone, sponge with Framycoin, sponge saturated with dilution of Cortisone and Framycoin, and collagenic sponge, which gave the worst reaction of calf's dental pulp, similar to the reaction of uncovered and untreated dental pulp.