Steven Paul. If you pre-plan a course of dental treatment before leaving your home country you can apply for the non-O (medical) 90-day visa, which is a perfectly legitimate way to enter and stay in the country during the course of treatment. I had a friend who came here for dental implants, crowns etc, and the whole process took almost three months. He got the dentist to produce an timetable of the treatment and visits, and it was accepted without question. Your situation where you're looking for an in-country extension, is based more on an emergency basis.

Depends on your health situation. Generally a doctor has to certify you are unfit to travel. I don't know if a dental appointment will pull that up. Otherwise you might be better off trying for the 60-day covid extension. They are still being sold until March 25

Joseph Romoser. When you consider the correct title is "Unable to travel due to covid" extension, they are totally ridiculous. There's not one person (medical reasons excepted) who cannot travel. They are being wound back and the March 25 one is probably the last, but I'd say Thai Immigration wanted to squeeze as much money as possible from the visitors!

If you are on visa-exempt entry you go to MTT, if on Tourist Visa you go to Chaengwattana. Tell us what visa you are on and I'll give you the address

Which Non-O? There's about 20 of them!

Kat Whatley. "Look" super real? 🤣🤣🤣. Good for you!

Perry Marlin. We don't know his history in Thailand. He might have been on covid extensions for 12 months, and was transferring money in readiness to get a real visa

Robert Lagas. Correct. I'll edit so he's not confused.

Amy Louisa Church Lee. There have been isolated cases, but if you're currently on a tourist visa/visa exempt (as opposed to non-immigrant visa) there's little chance you'll be denied. As always it's up to the discretion of the immigration officer, but I'm confident you'll be fine

I don't think you extended your visa at the embassy! Probably at the immigration office? Go back there just before March 25, you should get a further 60-days under the provision of the covid extension. If you are refused you will be given seven days to leave the country. Then do what

@Michael *******

has suggested, and do a visa run to Phnom Penh