Formulations compared in this testing included commercially available CPC mouthrinses : Crest Pro Health ( CPH ) , ( containing 700 ppm formulated CPC ) ; Colgate Total Puerto Rico ( CT450 ) , ( containing 450 ppm formulated CPC ) ; Colgate Total US ( CT750 ) , ( containing 750 ppm formulated CPC ) ; and Scope Mouthwash ( SCP ) , ( containing 450 ppm formulated CPC ) .