Here are some websites you may find interesting:

http://www.dentalvet.com/
http://www.aspca.org/pet-care/dog-care/dog-care-dental-health.aspx

http://www.growingupwithpets.com/index2.shtml
http://www.remindmypet.com/

http://www.petplace.com/
http://www.petplace.com/cats/dental-products-for-cats/page1.aspx