What Is Maxillary First Molar

The maxillary first molar has four or five cusps, including the mesiobuccal, mesiopalatal, distobuccal, and distopalatal cusps, and is usually the largest tooth in the upper jaw. It is closely related to the maxillary second molar in terms of function and anatomy. The roots of the maxillary first molar are typically divided into three roots: the mesiobuccal root, the mesiopalatal root, and the distobuccal root, with the palatal root being the largest and strongest.