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.本發明是關於一種口腔用組合物，特別是關於一種用於減少牙齒敏感的口腔用組合物。更具體而言，口腔用組合物包含鋅以及銅鹽，其可通過凝聚蛋白質來封閉牙本質小管，帶來牙齒敏感下降的效果，並維持該效果，使可溶於水或醇的聚合物塗覆於牙本質小管上並長時間維持，因此解決了牙齒敏感的主因，進而提供了在短時間內預防或減少牙齒敏感症狀的功效。此外，本發明的口腔用組合物包含可與牙本質小管流體反應形成蛋白質複合物的銅鹽或鋅鹽，以及包含可與無機物(如鈣)反應生成複合物的二羧酸或其鹽類，以引發牙本質小管封閉，以及顯著提高封閉效果，於短時間內產生有效預防或減少牙齒敏感症狀的功效。此外，本發明的口腔用組合物包括可於口中形成鈣複合物的二羧酸及其鹽類以引發牙本質小管封閉，且更包含部分可溶之鈣鹽及/或磷酸鹽以顯著提高牙本質小管的封閉效果，於短時間內產生有效預防或減少牙齒敏感症狀的功效。
