First of all, his teeth are fine.
Galen had a great performance considering his slightly compromised buildup.
I think Galen and Suguru should start training with each other, they could really benefit from that.
Another thought is that why is it such a big deal for Galen to do an altitude stint? His wife doesn't work and his kids would probably be thrilled to be in a mountain town for outdoor activities. They could easily pack up their life and spend 3 months in Flag or Park City. Altitude seems to be working well for Suguru!
Galen will be a 2:03 guy in the next few years, he is just slowly chipping away at another Olympic podium (hopefully Gold or Silver) and a 2019/2021 World Champ podium finish as well. The future is bright, can't wait for Nike Breaking 2 II in 2019!