title: Anisotropy in hard dental tissues.
mesh_terms: D000818:Animals; D001696:Biomechanical Phenomena; D002417:Cattle; D003720:Densitometry; D003743:Dental Enamel / Q000033:anatomy & histology; D003804:Dentin / Q000033:anatomy & histology; D004548:Elasticity; D006882:Hydroxyapatites; D007180:Incisor / Q000033:anatomy & histology*; D008433:Mathematics; D013016:Sound; D014465:Ultrasonics
chemical_list: D006882:Hydroxyapatites