Every country, regardless of the profession has good and bad/ moral and immoral members. My advise, if you reside long time in Thailand is to seek out a competent professional in Thailand. Medical/Dental tourism is OK when things go right but will cost more to remedy, (physically, mentally and financially) when they do not. If you work, receive income in a particular country support them; you can also go back/report if necessary when things appear to not work out.