For DTV visa with a Soft Power activity (invisalign)... would I need to pay for the service in advance to get a visa?

Or can I just get a reservation/price quote from an orthodontist, and show the treatment plan/price quote to the embassy?

I'm thinking of getting Invisalign in Bangkok to straighten my teeth.

And I'd want to get the Soft Power DTV visa for a few years while I do this.

I'd rather not pay thousands of dollars to an orthodontist until I am sure that my visa will be approved, though.

Hello everyone, I’m seeking medical treatments to obtain a DTV and would like to know does it include dental procedures such as orthodontic treatments like braces? Does the total cost have to meet a specific amount? If so, any recommendations that will provide a treatment plan letter?

Has anyone successfully gotten a DTV visa through an invisalign soft power appointment?

I’m looking to start Invisalign treatment, but I’ve had trouble getting responses from the clinics I’ve found online.

Has anyone successfully started Invisalign treatment in Bangkok? If so, which clinic did you use?

Thank you for your help!