Don't mention first, open dental clinic need what certificate, equipment and other hardware facilities. Fresh out of school, you may not be qualified.
My advice is to go outside and work in the dental clinic, learn the technology, and understand the operation of the clinic.
And instead of working at a clinic for a year or so, switch to a clinic and run errands.
In this process, I constantly improve my business level, and by the way, I also have my oral doctor's certificate, which is also the accumulation of initial funds, and I also know the general procedures of the clinic.
When that time you have an open mind, believe that you won't ask the question of what you need, a lot of problems are solved. As for how to develop the clinic, I think it's too early to consider this question.