Hi everyone, I didn't think of this until I got a cat who has very sensitive teeth and gets all kinds of dental problems really fast. My veterinarian suggested special dental care food by Hills, which works wonders. It's quite expensive, but they suggested to make a mix of at least 25% of the dental care catfood and 75% of the other catfood I used. She has had little to no trouble ever since. The size of the pieces is a lot bigger than regular catfood and it has a special structure that scrapes the teeth of your cat whilst he or she is chewing on food. It's a bit like the dental care treats for dogs, which basicly works the same way. If anyone has a cat who is sensitive to teeth or gum problems, I would highly recommend this type of food.