I use real bones too. One a week. DAily brushing but I ca't use an electric toothbrush. So it is hand brushing. Plus a pet dental care gel for Magic and spray for Razzle.
Warning though, one time I tried a lamb bone - the big femur bone. Thank goodness I stayed in the room. I think it was 5-10 minutes later Magic had broken the bone up
I immediately took them away. Razzle was well on his way to breaking the bone as well. Sigh those terrier jaws.
I like the bison bones - one of those keeps Magic engaged for about 5 hours.
The bison bones are too big for Razzle - I use the small knuckle sized beef bone for him.
I have tried the nubby toys designed for dental care - but they just are not rugged enough. They only last maybe an hour.... And then you got to go around and find all the little bits of the rubber. Those were the only toys that they are allowed to chew on - all other toys are for find and retreive and rewards for obedience.
For teething I have had very good luck with the hard key rings, they have different sized keys on it. They come in a range of sizes too
Usually by the time the teething is done so is the key ring.
I was going to try the deer antlers but reading this, and also seeing the sharp pointed end .... I don't think so now.