We use a Sonicare with a baby head and CET poultry flavored toothpaste. I brush her teeth 1x - 2x a day since her last dental 12/22/10 where she lost 6 teeth
Her dental before that was 11/2008(before she became my pup) and she lost 4 teeth. Her teeth are now (almost) pearly white thanks to my diligence with the Sonicare.
I had Oravet applied during her dental and applied it every week as recommended. At that time my vet advised me that the manufacturer advised that it replaced brushing all together. They were wrong. Within 4 weeks her teeth were bright florescent yellow with brown tartar at the roots
She has worse teeth than most. Severe stage 4 periodontal disease. Her $130 Sonicare has saved her teeth!