[Vinniedoggy]

I am so sorry. Unfortunately, this is the risk that comes with anesthesia. Some humans die having simple procedures too, and no one is ever quite sure how they will react to anesthesia. That said, I recently read somewhere that vets have far more anesthesia deaths compared to human doctors, and some of this has to do with the lack of monitoring used during veterinary procedures.

You are most definitely not to blame; you were doing what you thought was the right thing. However, I'm glad you're sharing your experience because I think one important lesson that can be learned from this is the cleaning of teeth at home to prevent the need for "under anesthesia" cleanings as much as possible.