Methods of reducing or eliminating tooth staining by application of stain barrier films
AssigneeHegemon Enterprises, LLC
InventorsWalter Holberg, Rhett M. Silverstein
Life of this patent
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Abstract
The invention includes methods for reducing or preventing the staining capacity of a compound to a tooth in a mammalian oral cavity, which includes affixing to the tooth surface a degradable film. The film comprises a starch polymer or copolymer that is formed by crosslinking a starch. The film degrades in the oral cavity within about 1 minute to about 70 minutes after affixation. In some embodiments, it may be preferred the crosslinking occurs in the presence of at least one (poly)carboxylic acid. It may be preferred that the starch selected is a retrograde starch, a starch that is chemically or physically modified to be amylase resistant or a starch that is derived naturally but exhibits amylase resistance.
Claims26
A method for reducing or preventing the staining capacity of a compound to a tooth in a mammalian oral cavity comprising affixing to the tooth surface a film that is pre-formed and that degrades upon exposure to amylase or hydrolytic enzymes within the oral cavity,
- wherein the film comprises a starch polymer or copolymer that is formed by crosslinking a starch or starch pre-copolymer, wherein the crosslinking occurs in the presence of at least one mono- or (poly)carboxylic acid, and
- wherein the film serves as a barrier that prevents staining of the tooth surface and degrades in the oral cavity within about 1 minute to about 70 minutes after affixation.
A method for reducing or preventing the staining capacity of a compound to a tooth in a mammalian oral cavity comprising affixing to the tooth surface a film that is pre-formed and that degrades upon exposure to amylase or hydrolytic enzymes in the oral cavity,
- wherein the film comprises a starch polymer or copolymer that is formed by crosslinking a starch or starch pre-copolymer in the presence of at least one (poly)carboxylic acid, and wherein the film serves as a barrier that prevents staining of the tooth surface and degrades in the oral cavity within about 1 minute to about 70 minutes after affixation.
A method for reducing or preventing the staining capacity of a compound to a tooth in a mammalian oral cavity comprising affixing to the tooth surface a film that is pre-formed and that degrades upon exposure to amylase or hydrolytic enzymes in the oral cavity, wherein the film comprises a starch polymer or copolymer that is formed by crosslinking a starch or starch pre-copolymer in the presence of at least one (poly)carboxylic acid, the starch comprising amylose and amylopectin in a unit percentage ratio of about 0%:100%;
- about 10%:90%;
- about 20%:80%;
- 30%:70% and about 40%:60%, wherein the film serves as a barrier that prevents staining of the tooth surface and degrades in the oral cavity within about 1 minute to about 70 minutes after affixation.
Dependencies are inferred from the claim text.