A lot of info over internet about chin implant.
A lot of people say have it inserted under the chin to avoid infection plus if a doctor inserts it inside the mouth, the doctor will have to cut and make incision by cutting the mentalis muscle inside your mouth. This muscle once cut, one can loose the natural crease under the lower lip which means that the lower lip will loose that crease/indentation and the lip will loose that pout......
have chin implant inserted under the chin.( extra orally)
Contact doctors who use custom made chin implants, where they have engineers produce a chin implant that fits perfectly around your chin bone.
Contact craniofacial surgeons who specialise in facial bones, they have engineers who produce custom made chin implant. ( In Bangkok, there is a craniofacial surgeon , try contacting Dr. Nond. He leads craniofacial department and seems to have up to date training which is important.However, I've never had surgery by him therefore I am not one to speak.Research the surgeons and ask others who have had surgery by the surgeons.)
Ask to see before and after pics...
remember....best insert the chin implant under the chin but not insert it via incision inside the mouth( for many reasons).