Max is 15 adn doesn't have many teeth in the front left. I do brush his when he will let met but that's not too often.

Spike on the other hand loves to have his teeth brushed and forget about the"doggie" toothpaste. He loves Crest with Scope. He has his own toothbrush on the sink with the rest of the family and when my son brushes his teeth he also does Spikes.