The dogs were upstairs playing like crazy. They surely enjoy the running and the play. It only seems like yesterday that they were doing rudimentary play. Now they are climbing ramps and the slide. I watched a saffron sable pup and a Cinnamon Sable pup play so nicely together. They are learning to not be rough.
Teeth, depending on the puppy are really coming in. Some have a full mouth of teeth and some they are still coming in. All have teeth though and yes if they didn't learn bite inhibition, their teeth would hurt. Puppy teeth are sharp and pointy but they learn to use a soft mouth. When their adult teeth come in they are rounder and not as sharp.
If you pay attention, it is fascinating how at each stage significant change occur. they are starting to grow up!