odontology       
noun [ U ] uk/ˌɒd.ɒnˈtɒl.ə.dʒi/ us/ˌoʊ.dɑːnˈtɑː.lə.dʒi/
 (尤指帮助破案的)牙科学
the scientific study of the structure and diseases of teeth, especially in order to identify people and help solve crimes
  The Armed Forces Institute of Pathology offers week-long dental courses in odontology and pathology. 美国武装部队病理学研究所提供为期一周的牙科课程,包括牙科学和病理学。 
 - More examples
 - Briley had first been identified by DNA and odontology.
 - Burkes is a New York dentist who heads the forensic odontology team.
 - He was a controversial odontologist who once was suspended by the odontology board.