I live in NY. the first time I saw a dentist was when i was 34 years old and my teeth needed some work by then.
My dentist hooked me up with a company called norwest financial who gave me an interest free dental loan.
THE CATCH --- they send you other checks in the mail soon after you get the loan for 25% interest if you cash them in and they consolidate it with your dental loan making it no longer no interest.
see if Norwest is available to you and remember just don't cash or accept any other loan offers from them. hope it works.