[0042] An oral care composition and method of maintaining anticaries activity of fluoride ion in an oral care composition are descried. An oral care composition comprises a fluoride ion source sufficient to maintain a high fluoride content in the composition, an effective amount of a desensitizing agent and water. A method of maintaining anticaries activity of fluoride ion in an oral care composition comprises providing an oral care composition comprising fluoride ions, an effective amont of a desensitizing agent and water.[0042]揭示一種口腔護理組成物及保持口腔護理組成物中氟離子之抗齲齒活性的方法。口腔護理組成物包含足以保持組成物中高氟化物含量之氟離子源、有效量之去敏感劑及水。一種保持口腔護理組成物中氟離子之抗齲齒活性的方法包含提供一種含有氟離子、有效量之去敏感劑和水之口腔護理組成物。