Method 2: If you cannot remove the cracked teeth from the skull, still use superglue inside the crack, but holding the tooth together while applying accelerator may be more difficult.
Method 3: If you’re working on large animals (bear, pig, big cats, etc), a different approach can be used. This works particularly well in animals with tusks or other ever-growing teeth (such as boar, warthogs, beavers, etc). You’ll need to extract the tooth/tusk in order to do this.
If it’s a tooth with a closed root (i.e. you can’t see into the end of it), you’ll need to cut/drill the end to expose the hollow center. Once the hollow center is visible, simply fill the inside of the tooth with two-part epoxy or superglue.
If using epoxy, just mix equal parts together, then make sure it gets deep into the tooth. If using superglue, fill it up then spray with accelerator.
Make sure to keep the cracked tooth clamped during the drying process so none leaks out. This method holds the tooth together very tightly, and drastically reduces the chances of it cracking again in the future.