Male, 12 year old, 72lb, Sulcata. He has burrowed most of his life he is working hard on a new burrow in the hard Arizona caliche. He has rubbed through the scutes on a couple of high spots, there is hard bone exposed. About the size of a 50 cent piece. What if any thing, should or can I do for him. Will the scute grow back? Does this pose any health risks? Thanks