Well, assuming they share dental characteristics with horses, only sometimes.
"In addition to the incisors, premolars and molars, some, but not all, horses may also have canine teeth and wolf teeth. A horse can have between zero and five canine teeth, also known as tusks (tushes for the deciduous precursor), with a clear prevalance towards male horses (stallions and geldings) who normally have a full set of four. Fewer than 28% of female horses (mares) have any canine teeth. Those that do normally only have one or two, and these may by only partially erupted. Between 13 and 32% of horses, split equally between male and female, also have wolf teeth, which are not related to canine teeth, but are vestigial premolars. Wolf teeth are more common on the uppper jaw, and can present a problem for horses in work, as they can interfere with the bit. They may also make it difficult during equine dentistry work to rasp the second premolar, and are frequently removed." - from wikipedia [link]
hrmn! learn something new every day. I wonder if wolf teeth are more common among thoroughbreds than other breeds - every adult one I've examined (about two dozen) since finding out about the damn things has had them.
Is the trepanning hole relevant? Seems out of place since the rest of the picture implies torture, trapped mental state and death whilst trepanning was a primitive surgery to treat head wounds and (later) to cure madness now associated with opening the third eye.