DS is almost 9 months old, and eating solids 2x per day. The rest of the time he nurses on demand, so many times per day, including as part of the bedtime routine, and sometimes during the night. He now has 6 teeth, and I can feel another about to erupt. I really feel like we should be brushing his teeth by now, but I'm not sure how to start.

I bought those tooth wipes, but never used them. We have the rubber finger "brush" (which I have used sporadically), a Safety 1st infant toothbrush set, and some training toothpaste safe for his age. Should I just start using the toothpaste and toothbrush? What times of day to you brush your infant's teeth? Same as adults, after meals/before bed? Ignore the milk? When did you start brushing?