I'm not too familiar with the accelerated programs but at my undergrad school, the applicants were not just a regular applicant; the dental school took two 7 year program students per cycle so they were only competing with themselves, and if they didn't get in, they just apply the year after as a "regular applicant" and are not considered a re-applicant. If you don't get in and will have to apply next cycle as a re-applicant, IMO I wouldn't even apply to the 7 year program and just wait a year and apply like a normal applicant. Dental school is getting more and more competitive and a whole extra year of good grades, extracurriculars, better LOR and volunteering could get you into a nice school and land a nice scholarship.