стоматология

всем привет, I did orthodontics(braces) in my country, and now I'm in Russia and i want to continue it (the course) in Russia, my question is how the system goes in Russia?,my doctor in my country said that I'll finish the course maximum 8 months, should i take an appointment and check it ?, and does the doctors in the clinics nice because my Russian in not the best thing i just want to know how many months the course will be , I have no idea about that so please share with me your experience. большое спасибо:)