The retromolar space or retromolar gap is a space at the rear of a mandible, between the back of the last molar and the anterior edge of the ascending ramus where it crosses the alveolar margin.[WP]. [ http://en.wikipedia.org/wiki/Retromolar_space ]
Synonyms: retromolar gap
Term information
Retromolar gap is found in some Neandertals because they had midfacial prognathism. This caused the lower toothrow to move forward, which led to the retromolar gap..