I don't know if that's really the case at all schools. It is my understanding at some schools that the Admissions Committee meets after all pre-December interviews are complete (usually right before or right after Thanksgiving) to make decisions. So, in essence, every student interviewing before Dec. 1 has an "equal" chance of getting accepted and for the same number of spots. I know it varies from school to school. I talked to a prosthodontist that I worked with/shadowed and he said that an "early" interview is typically those during the fall before the first admissions notification. He got his interview to the school he went to in April of the year he was entering. I think those interviews are when you are competing for fewer spots because someone who was accepted decided not to attend or something of that nature.