Prevent tooth decay, freshen bad breath, repair tooth decay, remove dental plaque, toothache, and relieve periodontitis. We are an authentic official store, guaranteed to be authentic and 100% valid! It is recommended that you follow a course of treatment for best results. 1.Gentle treatment (3 roots): Remove small areas of dark spots and repair small dental cavities. 2.Moderate treatment (5 roots): remove medium-sized black spots and repair medium-sized dental cavities. 3.Heavy Duty Treatment (10 Count): Removes large dark spots and repairs large cavities. 4.Super treatment (22 roots): Completely remove dark spots and repair large dental cavities.