good luck, it was my first stop when looking for this visa .... Was quickly told at the hospital no dental work, as that is "maintenance" not surgical.
Most are 6 month courses or longer. So far only the one course required, no one knows if we will have to book more classes yet - but for now the answer is no. Muay Thai here in Pattaya, Fight EVO360 Thailand - Thepprasit Boxing Stadium talk to Sharon - she has all the answers and 6 month classes is 20k bht.