I agree only partially with the previous post. I was a three year applicant who finally got accepted this last year. Your personal statement should be new and not contain parts of the old. It should contain why you want to be a dentist and how it fits in with your professional goals. More so the committees are looking to see what you have done over the last year to improve your application and demonstrate how even though you haven't been accepted, you continue to serve the community, dedicate your time to a dental pursuit, and increasing your educational experience. The last of which is probably most important. I went back to school and worked on an MBA to add to my microbiology degree. While I knew I wouldn't complete it, any business background I could get would benefit me as a practitioner. They like that. Best of luck, it can happen, take it from some one who knows!!