From a medical point of view, the gaps would be that if you had ongoing dental or medical care not completed prior to your departure, you have three months after departure to have that looked after. If you don't, then the force, as a serving force, doesn't cover any other things for you in your next life. It comes either from Veterans Affairs, from provincial health care, or from the public service health care program.
On December 2nd, 2010. See this statement in context.