Includes bibliogrgraphical references. / 1 v. (various pagings) : / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Thirty six journal articles and book chapters aimed at clarifying the roles of genetic and environmental influences on morphological variability within the human dentition. The research falls into three broad categories: Studies of the dentitions of a group of Australian aborigines; Studies of the dentitions of individuals with chromosomal abnormalities; Studies of the dentitions of twins. The results of research carried out over approximately a ten year period. / Thesis (D.D.Sc)--University of Adelaide, Dept. of Dentistry, 1995?