Having my dog cremated, is it possible to collect a few of his teeth after the process, or do they burn too?

i want to collect my dogs front two fangs, or all four of them, but im afraid they'll burn in the cremation process. I just want to know if his teeth will survive or if i have to do some necro-dental work. I know this may sound disgusting but there is no way that i'm gonna live without a piece of him with me.