OBJECTIVE	To compare the efficacy of an oscillating-rotating power toothbrush with a novel brush head incorporating angled CrissCross bristles ( Oral-B Pro 7000 SmartSeries and Oral-B CrossAction brush head ) versus a marketed sonic toothbrush ( Colgate ProClinical A1500 with the Triple Clean brush head ) in the reduction of gingivitis and plaque over a 6-week period .\