I've the Simply Connect plan. This covers 50% of you routine dental treatment. So I got my teeth cleaned a month ago and sent in the receipt. I was refused the refund of the 50% as I got it done by a hygienist rather than a dentist. In terms of getting my teeth cleaned I don't know what either profession does differently. They're both part of the same practice and to me it seemed logical to see the person that specialized in what I wanted done. I queried it but they just told me had to be a dentist. It is in their T&Cs so there's nothing underhand. I'd just assumed wrongly.