Oh right, I read the wrong post then. I assumed the guy who said he was a dentist from India was you, should've read the poster name. Where do you live then? You're going to have to bare in mind costs for travel, hotels, dental work + the additional time spent on actually going to another country to get dental work done.
Going to the dentist is not something a lot of people would combine with going on holiday, it's not fun, it's more of a needs based trip. Again, I mentioned before, those on low income are backed by the NHS in the UK, and those who earn enough wouldn't usually mind paying the fees for dental surgery, it's not often.
The market size purely isn't big enough for a substantial profit, at least from my point of view.
Regardless of how much you think this will work, I highly doubt you'll find someone on this forum at least who will actually partner with you on this. As you can see, 4 people from the UK have already posted (myself, Hexalor, welshman and Clutterbuck) all of us quite skeptical and in doubt of your ideas.
You're going to have a SERIOUSLY hard time finding anyone to partner with from the UK. I highly suggest you look into something else.