I have a Bari Danish factory pipe, a bent billiard from a long discontinued brand, given me new for Christmas by my late wife's aunt. It's forty years old or more, and the briar and most of the stem look almost new, but I have bored a small hole with my teeth on the underside of the bit. Since I have many pipes, and so far the pipe still smokes well, I doubt I'll do much about it for now. But what are the fixes, short of a new stem, for this sort of tooth damage to the bit end of the stem? The stem is tapered and has a plump design as do the briar bowl and shank. I doubt a replacement would have quite the robust rounded look.