When my cat Isabel had problems with her teeth, my sister told me that I should give her this in her food every day. My cat's eye, which had been watering due to her dental problems, stopped watering after about one week. She also started eating her dry food again (something she hadn't been doing, probably because it was too hard to chew, and hurt). She even started playing a little bit, something she hadn't done in years (she'll be 16 in November). So although I can't SEE whether the Silicea helped Isabel's teeth, I'm pretty sure it did. This medicine save me on a vet's bill; it was also MUCH easier on Isabel. Not only didn't she have the stress of going to the vet, but surgery (if they had said that was needed) would be dangerous at her age