Agree that taking the SAT as a current college student wont really help. Any school would be looking at your current abilities, oral surgeon shadowing, coursework, and GPA.
Your current score doesn’t really make you eligible for any merit funding if any were available for international transfers. You also should have a TOEFL of, at least, 100.
As for career, if an American university accepted you, you would be a guest of the country and school. After your education, immigration officials would expect you to return to your country. The university and the country should not be expected to provide you with a career/job.