A mamelon (from French mamelon, "nipple"), is one of three rounded protuberances which are present on the cutting edge of an incisor tooth when it first erupts through the gum. Mamelons are quickly worn away by use.[1] Mamelons are easiest to observe on the Maxillary central incisors, and appear as three small prominences on the incisal edge of the tooth. Mamelons are ordinarily of no clinical importance.