^
Yup, contact a recruiter. Also, there are different types of recruiters so make sure you seek out an Officer Recruiter/Health Scholarship Recruiter/HPSP Recruiter/Medical Officer Recruiter... or any recruiter labeled along those lines.
You don't want to talk to a 'regular' recruiter which are recruiters who sign people up for the enlisted military. With the HPSP you will be an Officer right out the get-go and once you graduate from dental school you'll be a 3rd level officer (Captain) -- which is actually pretty dang good.