I am a former patient of Dr. Barrens, I am now an adult. I would not suggest anyone to bring their children to him. Maybe my experience was rare, but the last time I went to him was the "last" time I went to him.
When filling a cavity I began to feel pain, when I expressed my pain to him he ripped off the equipment in a huff and putt more novicane into my mouth replaced the equipment back into my mouth and continued while I was still in pain. He informed me that I would just have to bare with it for a few more minutes until he was done as I was grabing and trying to rip off the arms of the chair.
Horrible Experience.