Liquid oral compositions comprising a calcium compound and an acidulant
AssigneeSmithKline Beecham Corporation
InventorDavid Myatt Parker
Life of this patent
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Abstract
Acidic oral compositions having reduced tooth erosion characteristics, especially acid beverages such as fruit juice drink concentrates, or oral healthcare products such as mouthwashes, are prepared by adding a calcium compound to the acid composition so that the mol ratio of calcium to acid ranges from 0.3 to 0.8, and the pH of the composition, if necessary after adjustment with an alkali, is from 3.5 to 4.5.
Claims36
A method of reducing the tooth erosion properties of an acidic oral composition used for oral administration, comprising adding calcium to the acidic liquid oral composition wherein the calcium is present in the range of 0.3 to 0.8 mol per mol of acid and the pH of the composition is from 3.5 to 4.5;
- and adjusting the pH, if necessary or desired, by addition of an alkali such that the pH of the resulting composition is in the range of 3.5 to 4.5;
- subject to the proviso that if the composition is a fruit-containing liquid having a fruit content of 25 to 100% by weight and an acid content of at least 5 g/liter (calculated as tartaric acid), then it contains less than 2 g/liter of dissolved calcium phosphate.
A method of reducing the tooth erosion properties of an acidic oral composition used for oral administration, comprising adding calcium to the acidic liquid oral composition wherein the calcium is present in the range of 0.3 to 0.55 mol per mol of acid and the pH of the composition is from 3.5 to 4.5, and adjusting the pH, if necessary or desired, by addition of an alkali such that the pH of the resulting composition is in the range of 3.5 to 4.5.
A method of reducing tooth erosion in a human caused by acid in an orally administered composition which method comprises orally administering to said human a liquid composition comprising a calcium compound and an acidulant, wherein the calcium is present in the range 0.3 to 0.8 mol per mol of acid and the pH of the composition is from 3.5 to 4.5;
- subject to the proviso that if the composition is a fruit-containing liquid having a fruit content of 25 to 100% by weight and an acid content of at least 5 g/liter (calculated as tartaric acid), then it contains less than 2 g/liter of dissolved calcium phosphate.
A method of reducing tooth erosion in a human caused by acid in an orally administered composition which method comprises orally administering to said human a liquid composition comprising a calcium compound and an acidulant, wherein the calcium is present in the range 0.3 to 0.55 mol per mol of acid and the pH of the composition is from 3.5 to 4.5.
Dependencies are inferred from the claim text.