The aim of this study, was to investigate the negative effects that may occur at the tooth and supporting tissues during orthodontic treatment with fixed appliance. 24 Patients were selected and were divided in to 2 equal groups for this study. Each group used tooth paste with floride and tooth paste with sanguinarine. The antiplaque and antibacterial effects of the tooth paste were compaired to each other. The result of this study was revealed that tooth paste with sanguinarine is more effective than tooth paste with fluoride in reduceing dental plaque and aalso in the treatment of gingivitis during orthodontic treatment with fixed appliance.

Keywords: Fixed Orthodontic Appliances, Dental Plaque, Gingivitis