US 4,396,378 AGranted

Method for preparing cavities in teeth for restoration

AssigneeScientific Pharmaceuticals, Inc.

InventorsJan A. Orlowski, Marvin N. Stark, David V. Butler

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Abstract

A solid fatty polyamide dissolved in a volatile organic solvent has been found effective for preparing cavities of teeth for restoration. For example, when this solution is applied to a cavity in the form of a dental cavity varnish, the organic solvent may be evaporated to leave behind a continuous polyamide film which is compatible with methacrylate resin type restoratives. Solid fatty polyamides are generally derived from the reaction product of partially polymerized unsaturated fatty acids with aliphatic diamines. The present invention relates to methods for preparing cavities with these polyamides as well as to compositions containing these polyamides.

Claims15

Dependent claims

A method for preparing a tooth having a cavity for restoration with a restorative material, said method comprising the steps of:

(i) applying to the cavity at least one solution comprising at least one solid fatty polyamide dissolved in a volatile organic solvent;
and
(ii) forming a solid, hardened film of said polyamide in said cavity by evaporation of said solvent, said polyamide consisting essentially of the reaction product of at least one partially polymerized unsaturated fatty acid with at least one aliphatic diamine, said partially polymerized fatty acid having at least 32 carbon atoms and at least two carboxylic acid groups, said aliphatic diamine having 2-8 carbon atoms and two primary amino groups, and said polyamide having a molecular weight from about 6000 to about 9000.

Dependencies are inferred from the claim text.