I use Tartar Shields Soft Rawhide chews for Small Dogs. They work great and Mocha loves them! They're not available in stores. I buy mine at my vet, but you can order them online at
www.tartarshield.com These rawhide chews prevents tartar, prevent plaque, prevents gingivitis, reduces bacteria, and freshens breath! I give him one a day in place of traditional rawhide, which aren't necessarily good for them. Anyway, just thought I would share!