The present disclosure related to an oral composition, and more particularly, to an oral composition for reducing tooth sensitivity. More specifically, the oral composition contains zinc and a copper salt capable of occluding dental tubules by agglomerating proteins, contributing to the reduction effect of tooth sensitivity, and to maintain this, allows a water soluble or alcohol soluble polymer to coat the dental tubules and be maintained for a long time, thereby solving the main cause of tooth sensitivity, as a result, providing an effect on the prevention or reduction of symptoms of tooth sensitivity in a short time. Furthermore, the oral composition according to the present disclosure contains a copper salt or a zinc salt which reacts with dental tubule fluid to form a protein complex, and contains dicarboxylic acid or its salt which reacts with an inorganic matter such as calcium to form a complex to induce occlusion of dental tubules and dramatically increase the occlusion effect, producing an effect on efficient prevention or reduction of tooth sensitivity symptoms in a short time. In addition, the oral composition according to the present disclosure contains dicarboxylic acid and its salt which forms a calcium complex in the mouth to induce occlusion of dental tubules, and further contains a partially soluble calcium salt and/or phosphate to dramatically increase the occlusion effect of the dental tubules, producing an effect on the efficient prevention or reduction of tooth sensitivity symptoms in a short time.
