Dogs, like many other carnivores, have specialized teeth for shearing. These teeth come in pairs – an upper and a lower – and are modified fourth premolars (upper) and first molar (lower). The sharp cusps create a scissors-like action, obviously important for chopping up chunks of flesh into pieces that can be swallowed. (Sabertooth cats had carnassial teeth – they did not use their elongated canines for chewing!) Apparently, these teeth are particularly susceptible to fracturing and abscesses in domestic dogs. This is what happened to Tajji. She isn’t a “strong chewer,” like our old German Shepherd Dog, but all dogs can exert tremendous force when they bite down. ( Read more... )