Small teeth that may be present in front of the first molar in the horse, often removed if they interfere with the action of the bit and irritate the gum. The visible crown is just a few millimeters long. Wolf teeth are present in the upper jaw of 20 to 30 percent of horses. Very rarely they can be seen in front of the first molar in the lower jaw; they are usually much smaller then the wolf teeth of the upper jaw. Wolf teeth appear in the mouth between 8 months and 1.5 years.