To provide a dental composition wherein the acid buffering capacity can be attained and the acid resistance of the tooth substance can be improved while maintaining very high foul breath inhibition capacity.A dental composition comprising: ion sustained-release glass (a); and a carrier (b) for supporting the ion sustained-release glass (a), wherein the ion sustained-release glass (a) is fluoroaluminoborosilicate glass having a composition range of: 15% to 35% by mass SiO2; 15% to 30% by mass Al2O3; 5% to 20% by mass B2O3; 20% to 45% by mass SrO; 5% to 15% by mass F; and 0% to 10% by mass Na2O.