Virbac Corp. offers C.E.T Chews, designed to help promote dental health for pets. The chews can prevent plaque and tartar buildup between cleanings, according to the company. A variety of chews are available, including Hextra Premium Chews for dogs with chlorhexidine; Veggiedent Tartar Control Chews for dogs, which are free of animal-origin ingredients; and Oral Hygiene Chews for cats, made from freeze-dried fish.