Dental pulp capping and cavity lining composition and preparative method

A dental cement composition consisting essentially of calcium hydroxide and a condensate of an ester of salicylic acid and a selected aldehyde, said ester of salicylic acid being selected from a group consisting of alkyl and certain aryl salicylates, including the methyl, ethyl, propyl, isobutyl butyl hexyl and benzyl esters, while the said aldehyde may be selected from the group consisting of alkyl aldehydes including acetaldehyde, formaldehyde and its oligomers, such as paraformaldehyde and metaformaldehyde or trioxane.

A dental cement composition comprising calcium hydroxide and a condensate of an ester of salicylic acid and an aldehyde diluted to a suitable viscosity said aldehyde being selected from the group consisting of acetaldehyde, formaldehyde and its oligomers, such as paraformaldehyde and metaformaldehyde or trioxane with alkyl salicylates selected from the group consisting of alkyl and aryl salicylates including methyl, ethyl, propyl, isobutyl, butyl hexyl and benzyl esters, and where the aldehyde to salicylate ratio is from about 0.5 to 1.0 moles of aldehyde per mole of salicylate.

A dental cement composition consisting essentially of a first paste containing the reaction product of a salicylate ester and an aldehyde selected from the group consisting of acetaldehyde, formaldehyde and its oligomers, such as paraformaldehyde and metaformaldehyde or tioxane, diluted to suitable viscosity and mixed to a paste with certain fillers, at least one of which is radiopaque, and suitable pigments, and a second paste comprising calcium hydroxide, zinc oxide and zinc stearate, plus suitable liquid matrix, said calcium hydroxide being present in stoichiometric excess over said reaction product in the first past so that following admixture in equal proportions a hard rigid mass is formed.

A dental cement composition which comprises a first paste containing the condensate of about sixteen equivalents of methyl salicylate and about ten to thirteen equivalents of paraformaldehyde and a second paste comprising about 35 parts of mixed ortho and para isomers of N-ethyl, toluenesulfonamide, about 50 parts of calcium hydroxide, about 14 parts of zinc oxide and approximately one part of zinc stearate said calcium hydroxide being present in stoichiometric excess over said reaction product and reactable with it upon admixture to form a hard, rigid mass wherein the excess of free calcium hydroxide is continuously available for promotion of a secondary dentin growth.

A dental composition consisting essentially of a mixture of about 20% of the condensate of methyl salicylates and paraformaldehyde, plus about 5% methyl salicylate diluent and about 60% of a blend of solids consisting of calcium hydroxide, titanium dioxide, barium sulfate and zinc oxide, plus pigments and sub micron silaceous thickener, and about 15% mixed ortho and para isomers of n-ethyl toluenesulfonamide.