You may want to do a search on the web for information about raw meat diets for cats. I have switched mine to raw meats and my goal is to have them eating lots of chicken necks. It takes months to switch them over, but my breeder raves about the huge improvement in dental problems. You might want to check it out.

Each cat is so different. Just like humans, the tartar buildup has to do with their stomach acids/mouth acids. If you change what it happening in the stomach, their mouth changes.

Food for thought....just raw...hehehehehehe!