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Family Dentistry Faculty

David C. Holmes David C. Holmes, D.D.S., M.S.
Professor and Head, Department of Family Dentistry

Dr. Holmes practiced general dentistry in Eldridge, Iowa, from 1978-1989. He became an adjunct faculty in the Department of Family Dentistry at Iowa during this time. After completing his specialty training in periodontics in 1991, Dr. Holmes became a group leader in Family Dentistry. In 1997, he joined the faculty at the University of Colorado where he served as chair of the Division of Comprehensive Care. In 2004, he returned to Iowa to accept the DEO position of the Department of Family Dentistry.


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Ana M. Diaz-Arnold Ana M. Diaz-Arnold, D.D.S., M.S.
Professor, Department of Family Dentistry

Dr. Arnold became a faculty member in the Department of Family Dentistry in 1987, following a two-year general practice residency and completion of a graduate program in prosthodontics at The University of Iowa.


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Mark A. Dittmer Mark A. Dittmer, D.D.S.
Clinical Assistant Professor, Family Dentistry

Dr. Dittmer joined the College of Dentistry in 1998 as a clinical assistant professor. He works as a general dentist in the faculty general practice at the UI College of Dentistry & Dental Clinics.


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Manuel R. Gomez Manuel R. Gomez, D.D.S.
Clinical Associate Professor, Department of Endodontics

Dr. Gómez was in private endodontic practice in Bogotá , Colombia from 1980-2003. During this time he was also a faculty member at the College of Dentistry, Department of Endodontics, Javeriana University and was president of the Association of Endodontists of Bogotá for eight consecutive years.


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Maria Marcela Hernández Maria Marcela Hernández, D.D.S., M.S.
Clinical Associate Professor, Department of Family Dentistry

Dr. Hernández joined the University of Iowa College of Dentistry faculty in 2003 after working as director of the operative dentistry section at the Universidad Javeriana Dental School, Bogota, Colombia, and working in private practice for ten years. She is a clinical associate professor in the Department of Family Dentistry.


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J. Michael Leary J. Michael Leary, D.D.S., M.S.
Professor (In Memorium)

Dr. Leary was in private practice in Washington, Iowa, from 1971-1985 and was also an adjunct faculty in the Department of Family Dentistry from 1974-1985. In 1989, he became an associate professor in the Family Dentistry department and in 1995, Dr. Leary became a full professor.    Memorium


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Michael D. Murrell Michael D. Murrell, DDS
Clinical Assistant Professor, Department of Family Dentistry

Dr. Murrell was in private practice from 1982-2014. He was also an adjunct faculty in the University of Iowa College of Dentistry's Department of Family Dentistry from 2013-2014. Dr. Murrell is now a clinical assistant professor in the Department of Family Dentistry.


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Dr. Reed Parker Reed Parker, D.D.S.
Assistant Professor

Dr. Parker has practiced general dentistry in Iowa City, Iowa, since 1978. He was also an adjunct professor in the Department of Family Dentistry before joining the College of Dentistry full time.


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Michael Spector Michael Spector, D.M.D., M.S.
Clinical Assistant Professor, Department of Family Dentistry

Dr. Spector joined the Department of Family Dentistry in 2005 after being in private practice in Milford, Connecticut, from 2003-2004, and in private practice in Hoffman Estates, Illinois, from 2004-2005.


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Larry J. Squire Larry J. Squire, D.D.S.
Clinical Associate Professor, Department of Family Dentistry

Dr. Larry Squire has practiced general dentistry in Davenport, Iowa, since 1976. He has also been an adjunct professor in the Department of Family Dentistry since 1977.


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Cheryl Straub-Morarend Cheryl Straub-Morarend, D.D.S.
Assistant Professor, Department of Family Dentistry

Dr. Straub-Morarend joined The University of Iowa College of Dentistry in 2005. She is a visiting assistant professor in the Department of Family Dentistry.


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Marcos Vargas Marcos Vargas, B.D.B., D.D.S., M.S.
Professor, Department of Family Dentistry

Dr. Vargas joined the College of Dentistry as an assistant professor in 1994. He is now a professor in the Department of Family Dentistry.


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Richard A. Williamson Richard A. Williamson, B.S., D.D.S, M.S., F.A.C.P.
Clinical Associate Professor, Department of Family Dentistry

Dr. Williamson joined The University of Iowa College of Dentistry in 2001. He practiced general dentistry in College Station, Texas, for 17 years before returning to graduate school for his certificate in prosthodontics. Dr. Williamson teaches in both the Department of Prosthodontics and the Department of Family Dentistry.


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