If you are sure then you can ask orthodontist to go for itero scan on your consultation visit only.(it won't cost much (2-3k). After that orthodontist will communicate with you via email and what's app to get your final approval. After this you have to pay for cancellation charges,if you cancelled) If all goes well then your aligner take 21 days minimum to come from US.so you can plan your visit after a month. Later no frequent visit advise. Now in tech savy world video call and pics help you anyway to be in touch with you doctor.(p.s.your doctor should be tech savvy). - no issue while traveling, I can show you my current pt testimonial who also using it while traveling and all. Cost varies from 1lac-3 lac depend on your teeth condition (Invisalign-best,5 millions cases treated worldwide, gives facility also if you shifted to foreign) There are other cheaper Brands available,but only go for them in minor teeth correction.cost -50k-1.5 lac

The timing and cost usually depends after taking complete records which are photos, x rays and impressions. After the orthodontist analysis this and comes to a diagnosis he can specify the timing of treatment. I can only give a range. To answer your questions. 1) For a non extraction case it takes roughly one year. If extraction of teeth are required to gain space it take 1yr 6m to 2yr 2) u will be given a set of instructions of what to eat and how to clean. Every 4 to 6 weeks u need to visit the orthodontist for tightening. U can travel as long as you can keep up the appointment every month for the treatment to finish in the specified time frame. 3) cost of metal brackets 30k to 35k Ceramic brackets 40k to 50k Clear aligners 1.5L to 2 L. There is also a separate cost for retainers which is given after treatment ends to hold your teeth in position