More info needed:
Was your dog vaccinated against rabies
? If so, much less risk.
What were the circumstances around the bite? If the dog was not in any way threatened, not so good. What were the circumstances around the death? If run over by a car, better (but sorry). Was the dog's remains available for testing? If the brain is negative, you are ok. If unclear, rx is a dose of rabies globulin & 4 dose vaccine rx.