title: A preliminary scanning electron microscope examination of wear striation direction on primate teeth.
abstract: Wear striations experimentally produced on initially unworn teeth were examined at high magnification using a scanning electron microscope. Certain characteristics of individual wear striations on these teeth indicate the direction of motion that produced them. Other striations on worn teeth of American Indians and the Paleocene primate Phenocolemur show similar characteristics and correspond to mandibular movement during mastication.
mesh_terms: D000818:Animals; D001641:Bicuspid / Q000648:ultrastructure; D003743:Dental Enamel / Q000648:ultrastructure; D049690:History, Ancient; D006801:Humans; D007180:Incisor / Q000648:ultrastructure; D007198:Indians, North American; D007900:Lemur / Q000033:anatomy & histology*; D008334:Mandible / Q000502:physiology; D008409:Mastication; D008855:Microscopy, Electron, Scanning; D009068:Movement; D010161:Paleodontology; D011443:Strepsirhini / Q000033:anatomy & histology*; D014070:Tooth / Q000648:ultrastructure*; D014072:Tooth Abrasion / Q000473:pathology*; D014481:United States