I think our Riley has just gotten done with losing teeth. He did bleed a good amount on toys, balls and our shirts. A good suggestion during the teething stage is a "chilly bone" . We got ours at petsmart for $ 9.00. It is a canvas bone that you soak in water and freeze in the freezer. You let him chew on it and it cools down the gums. Our Riley loved it.
Also, the nylabones or we purchased a deer antler for him to chew on. He like s the hard feeling of the antler.
Good Luck !