The advice to speak to a recruiting centre is the only valid course of action if only to get the ball rolling since there could be considerable delays (months?, year?) in processing the application due to the unusual circumstances of the OP (foreign education, outside country security check, timings for DOTP competition . . .).
Since the OP is in an international dentist advanced placement program it is likely he is already a fully qualified and licensed dentist in whatever third world dental hell-hole (Caribbean, India, United Kingdom . . .) that he received his training. (
that's sarcasm) The only reciprocal recognition of dental education that Canada has is with the United States.
While there may be a serving dental officer who could eventually wander by this forum and provide some additional information I would suggest that the OP contact a dental detachment in his area (
Toronto?) and see if there is a dental officer who could speak to him about CF dental careers generally and his situation particularly.