Magnolia's vet says she needs to have her teeth cleaned. She is 11 years old and I can see they have buildup and some redness around her gums. I'm just looking for any opinions on this. It's very expensive, but I'm willing to spend the money if it's really necessary. I had cats growing up who lived to be 18, who never had their teeth cleaned, so I'm just a little hesitant... Thanks!