I'm probably going to be like oh! i can't believe I didn't get it when I hear the answer to this one, but honestly I'm clueless at the moment. Where is the dentists office? I can't find it! ???
Maybe you just overlooked the exit... the office is inside the village. Did you find the fortune teller? Probably not, right?
To be explicit:
Spoiler
The exit to the room with the Fortune Teller and the Dentist Office is in the upper left corner of the "main" village.
Ah! Thank you :)