Wentworth 1.1% Sodium Fluoride Enamel Protect Toothpaste, Mint, 3.4 fl oz Tube, 1/Pk. Prescription-strength toothpaste featuring 1.1% sodium fluoride (5000ppm) and 5% potassium nitrate for both cavity prevention and tooth sensitivity relief. Enhances enamel resistance, penetrates deeply, and reduces sensitivity to cold, heat, acids, and sweets.