meridol® toothpaste is particularly effective for use in gum problems. The unique combination of amine fluoride and stannous fluoride from meridol® research has demonstrated its antiplaque and anti-inflammatory properties in more than 100 clinical trials. meridol® toothpaste inactivates residual plaque and permanently inhibits new plaque formation. This then promotes the regeneration of irritated gums. The fluoride that is also present (1400 ppm fluoride) provides effective caries protection.