So I've just been for a check up at the dentist, all is well. The dentist recommended a scale and polish with the dental hygienist. An appointment with her is £40 and I'm wondering how necessary it is? As far as I can tell my teeth are ok without noticeable build-up, the only thing they could do with is being whiter, but that's not what a hygienist would do anyway. Although the dentist would know best--or puts tinfoil hat on does the surgery get a kickback for each appointment they book?