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.
Claims20
A process for the preparation of a liquid composition of acidic beverages, fruit juices, ciders, wines, vinegars, acidic dairy products, acidic mouth washes, and medicines, for reducing the erosion of tooth enamel, which comprises
- a) adding a calcium compound to an acidic liquid oral composition so that calcium is present in the range of 0.3 to 0.55 mol per mol of acid, and
- b) adjusting the pH of the composition of step (a) to a pH range of from 3.5 to 4.5, if the pH of the composition of step (a) is outside of this range;
- and wherein the composition reduces the dissolution of, or removal of calcium, and phosphate from teeth.
A process for preparing a liquid composition of acidic beverages, fruit juices, ciders, wines, vinegars, acidic dairy products, acidic mouth washes, and medicines, for reducing the erosion of tooth enamel for reducing the erosion of tooth enamel, containing a calcium compound and an acidulant, which method comprises
- a) mixing a calcium compound with an acidulant to form an 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
- b) adjusting the pH, of the composition of step (a) to a pH in the range 3.5 to 4.5, if the pH of the composition of step (a) is outside of this range;
- and wherein the composition reduces the dissolution of, or removal of calcium, and phosphate from teeth.
Dependencies are inferred from the claim text.