Sensodyne Pronamel Active Enamel Shield Whitening toothpaste helps to prevent cavities 24 hours a day. This fluoride toothpaste builds 2x the acid resistance against dietary acids versus your mouth’s natural defences and continues to work even after brushing to help keep your teeth strong and healthy for life, by brushing twice daily. Sensodyne Pronamel Active Enamel Shield is a toothpaste that drives more fluoride into the enamel. This toothpaste forms a cavity shield that protects 24 hours a day. With enhanced foaming action, this fresh mint-flavoured toothpaste has a great taste that bursts with freshness. Start building resistance today with Sensodyne Pronamel Active Shield toothpaste.