United Dental is an AMAZING dental office in downtown Tokyo!!! I am on a 6 week holiday in Japan and have had two dental emergencies come up. The office speaks wonderful English and were able to see me right away. Everyone from the receptionist, to the assistant and dentist are exceptional at their job. They offer pain free dentistry in a high-tech office. My father is a dentist in the US and I was nervous to be treated by someone overseas, but felt right at ease the moment I walked into the practice. I highly recommend anyone to this office for the best dental experience in Japan!