Most dogs have problems with tartar build-up, even if they eat kibble rather than soft or home-made food. All dogs should have their teeth cleaned daily by their owners, but some of us who aren't very good about flossing our own teeth sometimes have trouble brushing the dog's teeth all the time. Nutro's Tartar Control biscuits can help, although they don't eliminate the need for regular brushing and regular cleaning by your veterinarian.
Nutro is one of the better brands of dog food, and I use it for two of my own dogs. The Tartar Control biscuits advertise that they scrub away tartar and fight plaque build-up, and since I've been using them with my Akita, her cleanings have taken much less time. She likes the taste, and while her breath isn't minty fresh, it isn't stinky dog breath, either. She has an allergy to corn, and the Nutro biscuits' first ingredient isn't corn, unlike many other brands. I give her two a day, in addition to her regular diet, and I have seen an improvement to her teeth.
The ingredients do include wheat, rice, and some corn, so if your dog has allergies to grains these may not be the best choice. Their other ingredients are chicken meal (not by-products), natural fiber, poultry fat (no, not thrilled about that, but they do need some fat in their diet), and several vitamins and minerals (Vitamin E, Vitamin C, Vitamin K, Zinc, Iron, Biotin, Vitamin A, Vitamin B-12, Riboflavin, and Calcium, to name a few), so they are a healthy addition to a dog's diet.
The 21 ounce package retails for $3.99, and often can be found with a 50 cents off coupon, so they are a pretty good value for your best friend. I give them a five star rating, because I have a happy dog with cleaner teeth. Remember, crunchy biscuits aren't enough -- you do still need to clean your baby's teeth!