I'm going out on a limb and assuming you're going to apply next cycle? If so, your chances are fairly decent, escpecially if you apply broadly. Things I would do if I were in your shoes, however, would include shadowing a general dentist (combined total of at least 100 hours w/ your cosmetic), seeing if your lab could get you a publication for your 2 year commitment, and applying early. If your personal statement is strong and you follow up with good secondaries (for schools that request it) you should have several interview invites.