The invention provides a method of treating sensitive teeth comprising attaching a sealant composition comprising a basic amino acid to a person's tooth and allowing the basic amino acid to be slowly released over time in order to reduce chrome and/or acute tooth sensitivity together with compositions and methods of use.本發明提供一種治療敏感性牙齒的方法,其包含有將一包含鹼性胺基酸的封閉劑組成物貼附至一個人的牙齒並且容許該鹼性胺基酸隨著時間而被緩慢地釋放以降低慢性和/或急性牙齒敏感性與組成物以及使用的方法。