I hunt frequently. I find what I believe to be peccary teeth not infrequently.  As we know , there is a problem. Modern pigs (domestic, wild, boars) have peccaries as ancestors. Teeth of modern pigs and peccaries are similar. Are the differences significant enough to be able to easily differentiate the two species. I thought they were. I am going to use a couple of @Harry Pristis fantastic photos, which remain the best resource for this discussion. In this photo of domestic pig from Florida