I am having full upper dental implants at Silom Dental Clinic (www.silomdental.com). It's right off the Sky Train at Chong Nonsi. My oral surgeon teaches at Chula and also works out of some other clinics. He said that Silom had the best facilities. My prosthodontist was trained at Boston University in the U.S. and has done work for the royal family. I would hightly recommend Silom. The staff are terrific.