Dr Leon de Bruyn, of Port Alfred Vet Clinic, presented me with the fantastic opportunity to accompany him to an Eastern Cape private game reserve where a Cape Buffalo cow, with calf, was observed with facial swelling.

Under sedation it was discovered that the swelling was, in fact, retained food (cud).  This was due to the maxillary second quadrant (upper left) and palate being displaced, assumed to be the result of an old head trauma which may also have caused the damage to her left horn. 

All mandibular (lower) incisors were loose - bovids do not have maxillary (upper) incisors, as was the first mandibular pre-molar in the fourth quadrant (lower right).  In order to increase her comfort, I extracted this tooth and floated the sharp buccal (outside upper) and lingual (inside lower) edges of the molars and pre-molars.