title: Recent research.
mesh_terms: D000368:Aged; D000375:Aging; D000818:Animals; D001672:Biocompatible Materials; D003743:Dental Enamel / Q000254:growth & development*; D004285:Dogs; D006801:Humans; D008569:Memory Disorders / Q000209:etiology*; D016388:Tooth Loss / Q000150:complications*; D016138:Walking
chemical_list: D001672:Biocompatible Materials