We just use a cheapo toothbrush as he tends to mutilate tthe bristles.
Toothpaste. Now Foods, XyliWhite Kids Toothpaste Gel, Fluoride-free I've don't lots of research on xylitol. I've decided it's something I want in our paste. Despite being natural, it's quite foamy. I've also used Branam Oral Health, Xylitol Toothpaste, for Kids.
Both can be purchased from iherb.com (use FEQ880 for $10 off $40)p
knock on wood, no recent fevers. When he has had one high enough that I think it needs Meds, I'll give him half of recommended. If no relief, I can always add more.