Enzymatic Oral Hygiene Chews for Small Dogs If you're looking for a dental chew that will help reduce plaque and tartar build-up on your small dog's teeth, then you need the Virbac C.E.T. Enzymatic Oral Hygiene Chew. These chews are made for dogs under 11lbs and come in a package containing approximately 30 chews. The Virbac C.E.T. Enzymatic Oral Hygiene Chews feature an exclusive dual enzyme system and abrasive texture to help reduce plaque and tartar through your dog's chewing. The chew also has a built-in metal freshener to keep your dog's breath smelling fresh. So, if you're looking for a dental chew that will help reduce plaque and tartar on your small dog's teeth, then the Virbac C.E.T. Enzymatic Oral Hygiene Chew is the perfect choice for you.