There are a few things you can do to clean animal teeth for jewelry. First, use a toothbrush to scrub the inside of the tooth with a light suction. This will remove any food or plaque that may have built up on the tooth. Second, use a mild soap and water to clean the outside of the tooth. Be sure to rinse off any excess soap before putting the tooth back in place. Finally, put a small amount of baking soda on a cotton swab and apply it to each of the animal teeth. Use gentle pressure to clean off any build-up and then put the tooth back in place.