The next time you approach your cat, massage his gums with the kitty toothpaste or let him lick it off of the toothbrush. (hartz.com)
It's specially textured to massage the gums while the baby sucks on it, and there are a lot of moms that swear by it. (babypreppers.com)
Continue to gently handle his / her face a bit more each day, until you can lift up the lips and massage the gums by rubbing on the cheeks. (catsexclusive.com)