Dental Hygiene Application Cover Letter Which College Course Is Better To Take To Become An Orthodontist: Dental Assisting Or Dental Hygiene?

Which college course is better to take to become an Orthodontist: Dental Assisting or Dental Hygiene? - dental hygiene application cover letter

I am in two enrollment at a local university. The application is due tomorrow. I want a dentist in the future. In this school there are two possibilities: dental and oral hygiene support. What should I bring?
Thank you!