Breastfeeding and Toothbrushing 1 Year Old

My son is almost 13 months old now and still nurses when I am with him - weekends,early mornings & night(I work full time and just now wrapping up the pumping). I don't think you need to worry about crooked teeth from continued breastfeeding.I have never heard that happen with breastfed babies.
I was breastfed as a child up until 2 years and my brother was breastfed for 3+years. That's great that you can still breastfeed and I would highly encourage you to continue as long as you are both up for it.
As for the brushing we started brushing his teeth around 12 months as well but he has shown no interest in holding it himself. We use the Earth's Best Toddler toothpaste and toothbrush. It is a gum stimulating brush that fits on your finger. So it is very soft and my son chews on it too while brushing - this may not help if you are trying to teach your son to hold a toothbrush and brush by himself but thought I'd share as a different, 'will not hurt himself if he ran with it' option.

It's perfectly safe and healthy to continue to breastfeed for as long as you both want to. The longer the better, really. But if you feel done, then slowly start dropping one nursing session per day, every 4-6 days or so.

At 12 months he can start eating what you eat, just in smaller pieces and very well cooked.

My girls like to brush their own teeth too, and would often take off on me. UNTIL, I sat them on the counter - then they were stuck till *I* let them down. What I would do is tell them Mama's turn first, then your turn. I'd make sure those pearly white were gleaming, then let them do it - for as long as they wanted. That usually kept the peace :o)

Breastfeeding creates proper jaw musculature and tooth structure. Suckling from a breast IS very different than sucking on a bottle's nipple. Bottle Rot is the main issue with bottle feeding... not necessarily crooked teeth (which is usually thumb sucking). Breastfeeding also creates a wider palate, which is how the mouth structure should be and helps against cavities.

Please don't wean over something that wasn't true and arbitrary to boot. You are doing a great job nursing him and allowing him to choose his speed. I breastfed until my DD decided just before 4.5 y/o she was done. She got one cavity because I didn't know that she should have seen a dentist much earlier - so it was my fault. She'd been eating and drinking regular foods by 14 months, in addition to nursing... and I wasn't too diligent about teeth brushing yet. It had nothing to do with breastfeeding.

Breastfeeding as they get older isn't the same as the first year. It ebbs and flows, somedays they are too distracted with learning new things to even consider nursing - but they will usually come back to the breast.

I'm happy to hear you've already started brushing his teeth. Allow him to brush first, then go again behind him to make sure you got everything and the tongue.