colgate toothbrushes premier extra clean ( 12 toothbrushes) colgate colgate premier toothbrushes help maintain healthy gums without irritation. featuring bi-level bristles that clean plaque along the gum line and from the tooth surface for an impressive overall clean. they help keep gums healthy by removing plaque and dental buildup for a superior cleanliness. the backside also has a built in tongue scraper for ultimate freshness.