The objective of two single-blind , three-treatment , crossover design , clinical studies was to evaluate the antiplaque efficacy using the Modified Gingival Margin Plaque Index ( MGMPI ) scores of three dentifrices : 1 ) a dentifrice containing 0.3 % triclosan/2 .0 % polyvinylmethyl ether/maleic acid ( PVM/MA ) copolymer/sodium fluoride in a 17 % dual silica base ( Colgate Total Advanced Toothpaste-Test Dentifrice ) ; 2 ) a commercially available dentifrice containing 0.3 % triclosan/2 .0 % PVM/MA copolymer/sodium fluoride in a 10 % high-cleaning silica base ( Colgate Total Toothpaste-Positive Control Dentifrice ) ; and 3 ) a commercially available dentifrice containing 0.243 % sodium fluoride in a regular silica base ( Colgate Winterfresh Gel-Negative Control Dentifrice ) .
