I received this Mako jaw back in February 2016. Although the jaw had been pretty much cleaned, it came to me split in half, through the top and lower symphisis. This seems to have been caused by too much paring back of the fibres on the top and bottom symphisis.
The jaw was washed, and then placed in solution for around 2 days. It whitened really nicely, however the issue I had was how to ensure the two halves would dry symmetrically, without warping. The best way was to clamp down on the sides so that the sides would be flat against the board, thus ensuring the jaw when dry would not “wobble” when placed on a flat surface. Then the upper and lower joints were pushed together and clamped on the top, and cable tied at the bottom so they would be joined snugly.
Just using glue would not give sufficient strength to the two halves, so a stainless steel screw was inserted on the inside of the top jaw and screwed the two halves together. The same was done with the bottom jaw, however due to the number of teeth crowding the inner jaw, the screw had to come out just behind the lower second tooth, as shown in the photo below.
Special epoxy putty was placed on the screw and on the two halves of the jaw, then screwed together, to make it an extremely strong bond. The jaw was then left to dry, then sanded to remove any rough edges, and any cracks filled in with a special 2 part putty, colour matched to the surrounding cartilage.