[anonymous]

Just brush their teeth once a day and listen to your vet when he recommends that a professional cleaning (maybe once or twice per lifetime).
No need to take a chance on those other things mentioned. Yuck!
Per the search engine:
/forums/topic/dental-chews-greenies-or-pedigree-dentasitx/#post-119699
PS: Have you tried raw carrots? Not the baby ones, they are chemically treated and a chocking hazard due to their size.