Procter And Gamble Precision Clean 100-69055-84748-0 Toothbrush Head 100-69055-84748-0 Oral Care Advanced Bristle System removes more plaque and cleans deeper than a manual toothbrush Each brush head hygienically sealed for convenient storage Indicator bristles will fade over time, signaling time to change brush head Dentists recommend changing your toothbrush every three months