What I learned this week
So for all you toy carriers (my male used to carry around his toys and mouth them... never put them down). They collect dirt, sand, and some are just abrasive to begin with. If you let your dog have them all the time, they cause excessive wear on the teeth. If your dog isn't a big chewer/carrier/crate biter, the pulp will draw into the tooth at the same rate of wear so by old age, they still have ok, albeit worn down, teeth.
For the aggressive ones, the wear beats the pulp retraction, and the result is the pulp is exposed. Here is a pic of a broken canine (the pulp will bleed).
A wear exposed canine will not be red or bloody. It will be dark as its likely dead and collecting all manner of nasty in it... like this
Its painful (though many aggressive chewers have no issue biting right through the pain), but more importantly it opens a pathway for infection, and ultimately weakens the tooth and puts health at risk. Once the pulp is exposed, the options are extraction of the tooth (big deal for a canine), root canal and filled with inert substance (a little weaker than OEM equipment), or root canal and titanium crown (stronger than natural, and eliminates the issue of further wear, however now if a break were to occur, however rare, it happens at the gumline).
The cost of 4 canine root canals w/TI crowns? About $3600.
Choose your toys wisely