title: A possible relationship between certain malocclusions and difficult or instrument deliveries.
mesh_terms: D001720:Birth Injuries / Q000150:complications*; D002585:Cesarean Section / Q000009:adverse effects; D002648:Child; D005260:Female; D006801:Humans; D007746:Labor Presentation / Q000009:adverse effects; D008310:Malocclusion / Q000209:etiology*; D008437:Maxilla / Q000293:injuries*; D003765:Models, Dental; D009772:Obstetrical Forceps / Q000009:adverse effects*; D011247:Pregnancy