I’m not sure that I understand the shape of the teeth, but if
there is an area which has a wider cross section than that the
cross section on either side, I have a suggestion that I will try
to explain. You might want to try in paper or non-precious metal
Take two long rectangles of metal (about 2.5 times the length of
the tooth and a 1/4" to 1/2" wider the widest part of the
tooth)and cut a hole at the midpoint of each to match the cross
section of the tooth at each side of the widest point, so that if
you slip one over each end of the tooth as far as they will go,
there will be some space between the two sheets of metal. Curve
the two sheets upward to form a circle (or oval or teardrop) and
trim them so that all four ends meet. Protect the tooth from
heat and solder the ends together, or drill through the two ends
on each side and join with a jump ring. The end result will be
the tooth suspended half inside the circle and half sticking out
of the bottom.
If their is not enough room to put metal around the tooth on
both sides of the widest point, only cut a hole through one
piece, using that piece on the bottom, and use the solid metal
above the end of the tooth to prevent it from moving.
Hope this all makes some sense, and helps. Good Luck.