Thai Healing Massage is basically Thai Massage, but it is a somewhat modified version of it which includes additional elements from yoga, energy work, and many rocking techniques which are not typically used in traditional Thai Massage. The Thai Healing Massage system has a focus on gentle therapeutic work and therapist-friendly application, meaning it reduces stress on the therapist's body. It is also more gentle for the client.
Regarding your question about Thoracic Dextroscoliosis, I am sure you understand that nobody can give a definitive answer to such a general question without knowing more about your condition. In general Thai Massage can be very helpful for scoliosis since it includes many more motion elements (stretches, traction, rocking) than typical western massage forms (swedish, sports, deep tissue...).
However this is not meant to be a specific answer to your specific issue. There are other factors involved too. It is not just a matter of Thai Massage as a therapy style, but it depends on the skill, style, and therapeutic abilities of the Thai Massage practitioner. They don't all work the same. One Thai Massage practitioner may be able to help you a lot while another cannot help you at all.
Let's say that Thai Massage most likely has an excellent potential to help with scoliosis, provided that a particular practitioner has the experience and the skills to use it in a helpful way. Of course this also depends on the particular situation of your condition.
I've been experiencing back pain for years now due to my condition and I'm wondering if Thai Massage could at least lessen the pain. Maybe I'll just visit the nearest Massage Therapy Center near our area and check if they could help. But thanks a lot for this info. That was very much helpful.
IF you find a good therapist, then there is a very good chance that Thai Massage therapy can help with your back pain. The only problem is that apparently you don't have experience with Thai Massage and therefore don't know if a therapist is really good or not. So this might be a bit hit or miss, but unless you try you will never know.