Our Dentists

We’re a group of highly experienced dentists who share a philosophy of preventative and conservative care.

Partners

Mark G. Beck, D.D.S.

Dr. Beck grew up in Affton and graduated from St. Louis University High School. Upon completing a Biology degree at St Louis University, he received his dental degree from the University of Missouri – Kansas City School of Dentistry. Dr Beck is currently on the Board of Directors of the Greater St. Louis Dental Society and on staff at the Community Health in Partnership (CHiPS) free clinic on North Grand. He is also a member of the American College of Dentists, the South County District Dental Society and the Missouri Academy of Pediatric Dentistry.  Dr. Beck has been with Sunset Hills Dental Group since 1981.

Christopher G. Haffner, D.D.S.

Dr. Haffner grew up in St. Louis Hills.  He graduated from St. Louis University High School and received a Bachelors degree in Biology from the University of Missouri St. Louis. After taking some time off to travel, Dr. Haffner graduated from the University of Missouri – Kansas City School of Dentistry. He has been with Sunset Hills Dental Group since 1985.

Edward C. Hotz, D.D.S.

Dr. Hotz grew up in Marion, Ohio. After receiving a degree in Biology at St. Louis University, he graduated from Ohio State University Dental School. Dr. Hotz then served two years as a dentist at Scott Air Force Base in Belleville, Illinois. While at Scott AFB, he did post-graduate rotations in oral surgery, periodontics and prosthodontics. Dr. Hotz has been with Sunset Hills Dental Group since 1977.

Daniel A. Kaufmann, D.D.S.

Dr. Kaufmann grew up in South St. Louis County, where he attended Lindbergh High School. He graduated from Drury College in Springfield, Missouri with degrees in Biology and Chemistry before receiving his dental degree from the University of Missouri – Kansas City School of Dentistry. After practicing on Tesson Ferry for seven years, he joined Sunset Hills Dental Group in 1993.

Michael J. Watson, D.D.S.

Dr. Watson grew up in South St. Louis County and graduated from St. John Vianney High School. He completed his undergraduate studies at Washington University in St. Louis, before receiving his dental degree from Washington University School of Dentistry. Dr Watson practiced in Clayton, Missouri for 20 years before joining the group in 1999.

Elena C. Zerega, D.D.S.

Dr. Zerega grew up in Webster Groves and graduated from Cor Jesu Academy. She received a Bachelor of Science degree in Biology, with a Spanish minor, from the University of San Francisco. She received her dental degree from the University of California, San Francisco School of Dentistry. Dr. Zerega is a member of the South County District Dental Society. She has been affiliated with Sunset Hills Dental Group since 2007 and in 2010 became the first female partner in the group.

Associates

Peter J. Durso, D.D.S.

Dr. Durso grew up in South St. Louis City and attended St. Mary's High School and St. Louis University. He graduated from Loyola University – Chicago School of Dentistry and then joined the U.S. Navy Dental Corp. While stationed at the Naval Dental Center in Great Lakes, Illinois, he completed a fellowship in Periodontics. Dr. Durso then completed his residency program in Periodontics at the National Naval Dental School in Bethesda, Maryland. Dr Durso is a diplomat of the American Board of Periodontology and a member of the American Academy of Periodontology, the Missouri-Kansas Society of Periodontology and the Midwest Periodontal Society. He has been the staff periodontist at Sunset Hills Dental Group since 1987.

Richard J. Haffner, D.D.S.

Dr. Haffner grew up in South St Louis. He graduated from St. Louis University with both his undergraduate and dental degrees. After dental school graduation, Dr. Haffner served two years as a dentist at Lackland Air Force Base in San Antonio, Texas, before moving back to St. Louis. Dr. Haffner was one of the founders of Sunset Hills Dental Group in 1973. He is a member of the American College of Dentists and has been recognized by his peers for his service to the dental profession both locally and nationally over the last 50 years.

J. Michael Maguire, D.D.S.

Dr. Maguire grew up in Normandy and graduated from St. Louis University High School. He attended St. Louis University for his undergraduate studies and received his dental degree from St. Louis University Dental School. He then served two years in the U.S. Navy at the Charleston Naval Hospital before moving back to St. Louis in 1971. Dr Maguire was one of the founding partners of Sunset Hills Dental Group in 1973.

Julia Hotz-Sudekum, D.D.S.

Dr. Hotz-Sudekum grew up in Sunset Hills and graduated from Cor Jesu Academy. She attended the University of Missouri – Kansas City, from which she received a degree in Biology and her dental degree from the six year combined BA/DDS program. Upon graduation, Dr Hotz-Sudekum completed a one year advanced education in General Dentistry Residency, also at the University of Missouri – Kansas City. She has enjoyed working as a dentist with Sunset Hills Dental Group since 2001.