What age did you start brushing your lo's teeth? What brand of toothbrush and toothpaste did you use?

According to dentist, lo's teeth should be brush with the first appearance of teeth. I only manage to brush my lo's teeth when he turned two. Not easy to get him brush during the initial stage. The toothbrush and toothpaste I intro during early stage was from Jack and Jill. It can be bought in www.iherb.com