I have had a dentist in Panama do work on my teeth here is my experience....
Was visiting my wife's family in Panama for 12 days on day 10 I decided to go to the dentist with my wife as her mother was ranting and raving that she has a great dentist and he is super cheap so what the hell we were bored and went in for a cleaning. Needless to say the office was immaculate he squeezed us in and was super nice. We both went in for a cleaning and left with multiple cavity fillings. Wife had about 2-3, I had 13! He determined I needed to have my filings put in without taking an xray, his claim that it took too long to process and he didn't have the time to wait.
Price was he was really inexpensive $55 for a cleaning, and $55-60 per filling.
When I got back to the states a year later I had a pain in my tooth so I went to a local dentist that took xrays and asked me who has done my work previously... I swallowed and said to myself oh crap... now what?!?!?
I answered and said some dentists in Panama did 13 fillings... blah blah blah i told him the story. He turned around and said: Thats a D-A-M good dentists your fillings are near perfect, and without an xray impressive.
All in all great experience.