Benjamin Hammond is a clinical professor in periodontal microbiology at the Temple University School of Dentistry. Hammond is professor emeritus of microbiology at the University of Pennsylvania School of Dental Medicine (1991-present). He served as a professor of medicine and dental medicine (1991-1997) and as the director of the Oral Microbiology Testing Service at the Medical College of Pennsylvania/MCP-Hahnemann University College of Medicine. Hammond is also a former professor (1970-1991) and chairman (1972-1985) of the Department of Microbiology and former Associate Dean for Academic Affairs (1984-1991) at the University of Pennsylvania School of Dental Medicine. Other awards and posts include: president of the American Association for Dental Research (1978); Lindback Award for distinguished teaching, University of Pennsylvania School of Dental Medicine (1969); and member, National Advisory Dental Research Council, National Institutes of Health (1975-1978).