In my dream I was talking to a man, he opened a door and a big beige dog came thru the door, the dog came to me and took my left wrist and clamped down on my arm and he wouldn't let go
Good morning, Sherry.
Your dream begins with communication - we'll call it just generic communication instead of any particular kind, since you don't identify the man as anyone special, nor did you mention what you're talking about.
Dogs are normally seen as faithful companions, but this one bites you - this is a classic betrayal symbol, with you as the victim.
The dog won't let go of your arm, which prevents you from taking action - so there's a feeling of helplessness.
Putting these together, it seems that there is a situation in your life where you feel as if you are stymied - you can't do anything about it, and either you can't communicate or no one is listening.