No form settings found. Please configure it.

Welcome to Our Practice

Welcome to Sunset Hills Dental Group, Your Dentist in Saint Louis, MO

Sunset Hills Dental Group dentists welcome you to our website! At Sunset Hills Dental Group we’ve been taking care of smiles in South St. Louis County since 1973. We’re a group of experienced dentists and professional staff who provide comprehensive care for both individuals and families. We are proud members of The Greater St. Louis Dental Society, the Missouri Dental Association and the American Dental Association.

We understand that choosing a dentist is an important decision. After all, your smile is your greatest asset and says a lot about your overall health. From the moment you walk in the door, you'll be welcomed by a caring staff in a relaxed, stress-free environment where the whole family can feel at ease.

Sunset Hills Dental Group offers a full range of general & cosmetic dental treatments at our office to help you achieve your perfect smile, such as teeth whitening, crowns, preventive care or implants. We utilize the latest in dental technology and techniques in order to offer you the best preventive care and treatment available in Saint Louis.

To learn more about our comprehensive service offering, talented Saint Louis dentists and office procedures, take a few moments to look over the informative pages on our website. For additional information, you can always contact our office by calling or stopping in.

Relax with confidence at Sunset Hills Dental Group. We're your neighbors and we're here to help you maximize the health of your smile.

Our Mission

At Sunset Hills Dental, our Mission is to provide treatment to the whole person - with a special focus on how your teeth and gums relate to your total body health. We want you to be confident that your smile achieves your goals for comfort, function and appearance. We're here to make that happen.

Meet Our Doctors

Learn Who We Are

  • Matthew M. Barker, D.D.S.

    Dr. Barker was raised in Wildwood, MO and currently lives in Kirkwood. He graduated from St. Louis University High School and then the University of Missouri - Columbia, with a Bachelors degree in Biology. He also earned a Masters degree in Biology from Washington University, before graduating from the University of Missouri - Kansas City School of Dentistry in 2011. Dr. Barker practiced dentistry with Affinia Healthcare before joining Sunset Hills Dental Group in 2015. He is also a member of the MO Valley Dental Study Club.

  • Stephen G. Beck, D.D.S.

    Dr. Stephen Beck grew up in Sappington and graduated from St. Louis University High School. After majoring in History and Biology at the University of Missouri, he earned his dental degree from UMKC. Before joining Sunset Hills Dental Group, Dr. Beck worked for the Public Health Service in Hillsboro, treating under-served communities in Jefferson County. He also served as a contractor for the U.S. military, under the combat readiness program. Dr. Beck is a member of the Missouri Academy of Pediatric Dentistry.

  • Julie Hotz-Sudekum, D.D.S.

    Dr. Julie enjoys providing high-quality dental care for adults and children. She grew up in Sunset Hills and graduated from CorJesu Academy. After graduating with a six-year combined BA/DDS degree from The University of Missouri-Kansas City in May 2000, Dr. Julie completed a one-year Advanced Education in General Dentistry Residency. She has enjoyed working at Sunset Hills Dental Group since 2001 and is recognized as one of St. Louis's Top Dentists. Dr. Julie and her husband, Peter, have three sons and live in the St. Louis area. She and her team are passionate about serving the Special Needs Community. Watch a video about one of their initiatives here.

  • 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.

  • Katerina Kleinova, D.D.S.

    Dr. Kleinova grew up in the Czech Republic. She graduated from both The Ecclesiastic High School in Ostrava, Czech Republic, and The Crossroads High School in Santa Monica, California. Dr. Kleinova earned degrees in General Science, from Santa Monica College, and also in Marine Biology, from UCLA. She received her BS Degree in Dental Science as well as her DDS degree from the University of California, San Francisco. In 2008, she began practicing in the Beverly Hills area of LA. In October 2020, Dr. Kleinova moved to St. Louis and joined Sunset Hills Dental Group.

  • 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.

  • 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. He has served on the Board of Directors of the Greater St. Louis Dental Society and has been on staff at the Community Health in Partnership (CHiPS) free clinic on North Grand for over 30 years. Dr. Beck is also a member of the American College of Dentists, the South County District Dental Society and the Missouri Academy of Pediatric Dentistry. He 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 bachelor's 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.

Our Location

We are located at 11810 Gravois Road, St. Louis, Missouri 63127 (between Lindbergh Boulevard and Highway 270.)

Hours of Operation

Our Regular Schedule

Primary Location


8:00 am-8:00 pm


8:00 am-8:00 pm


8:00 am-8:00 pm


8:00 am-8:00 pm


8:00 am-3:00 pm


8:00 am-1:00 pm




What Our Patients Say About Us

  • "I love Dr. Beck and everyone that works in his office. Everyone is always so friendly and helpful! They are Genuine people!! The work they do on my teeth is perfect! I would never go anywhere else!!"
    Brenda F.
  • "Several of our family members go here and love it. Both Dr. Mark Beck and Dr. Stephen Beck are great. They are very knowledgeable, caring, and provide quality care. The Dental Hygienists/Technicians are awesome, too. To top it off, the office staff are friendly, helpful and always cheerful. I have never "enjoyed" getting dental procedures done, however I would not go anywhere else."
    Lisa H.
  • "Dr. Kaufmann is outstanding - highly skilled, concerned with patient comfort, explains procedures and what to expect. He has taken care of me for many years. His staff are skilled and friendly. His scheduling personnel are easy to work with. Convenient location and ample parking on site."
    Rich H on August 24, 2022
  • "Friendly and knowledgeable! Love Dr. Zerega, Dr. Studt and their team. I highly recommend!"
    Lisa D on August 30, 2022
  • "Visiting Sunset Hills Dental gives my family and me more reasons to smile."
    The Johnson Family
  • "I have been going to Sunset since the building first opened. I have always felt like I was visiting family. I am treated very well, and they are concerned about me. I have been going to Dr. Haffner for a good number of years, the best thing I can say about him is I trust him. I trust all of the those I come in contact with. They are very friendly and knowledgeable about their profession. I would recommend Sunset to anyone who asked."
    John L on September 8, 2022

Featured Articles

Read about helpful topics

  • Educational Videos

    Take a few minutes to watch our educational videos and learn more about different dental treatments and procedures. Video topics include general & cosmetic dentistry, Implants, oral health and hygiene, orthodontics and preventative dentistry. ...

    Read More
  • Smile Makeover

    Smiling with confidence makes you feel great. A beautiful smile is also an important social and professional asset. Yet there are many people who avoid showing their teeth in public or in photographs because they don't like what they see. If that describes you, then why not start the process of getting ...

    Read More
  • Periodontal (Gum) Disease

    While you may think that some loss of teeth is inevitable with aging, it is actually possible for all of your teeth to last a lifetime. One of the ways you can achieve this goal is to avoid periodontal disease (“peri” – around; “odont” – tooth), which is caused by bacteria that attack the ...

    Read More
  • Mouthrinses

    Numerous studies have shown that using an appropriate mouth rinse, in conjunction with regular brushing and flossing, is an easy and effective way for you to improve your overall oral health. As part of a regular program of oral hygiene, mouth rinses (which are sometimes called mouthwashes) can be effective ...

    Read More
  • Oral Hygiene for Kids

    Teeth can last a lifetime if you take care of them right — and the best time to start is just as soon as they begin appearing. By establishing good oral hygiene routines for your children right from the start, you'll give them the best chance of keeping their teeth healthy — forever. Tooth decay, ...

    Read More
  • Fillings

    If you have never had a cavity, congratulations! If you have had one, you are not alone. About 78% of us have had at least one cavity by the time we reach age 17, according to a 2000 report by the U.S. Surgeon General. Fortunately there's a time-tested treatment for cavities: the dental filling. Fillings ...

    Read More
  • Tips to Prevent Cavities

    Cavities are little holes in teeth that can eventually cause big problems. They form when tooth-eroding acid attacks a tooth's protective outer covering (enamel). This acid mainly comes from two sources: your diet, and certain oral bacteria that thrive in the absence of effective oral hygiene. If cavities ...

    Read More
  • Preventive Dentistry

    You've no doubt heard it said that an ounce of prevention is worth a pound of cure. In dentistry, you might say it's worth two pounds. Maybe even thousands of dollars. That's because dental problems can become exponentially more expensive — and painful — the longer they go unaddressed. Fortunately, ...

    Read More
  • Oral Cancer

    Cancer is a scary word, but the more you know about it, the better able you will be to protect yourself and the ones you love. This is particularly true of oral cancer, which is very treatable if caught early. Unfortunately, about two-thirds of oral cancers are not caught until the late stages. You may ...

    Read More
  • Bad Breath

    Bad Breath, or halitosis, is an embarrassing problem that affects millions. To combat it, many people use breath mints, chewing gum, sprays and mouthwashes. In fact, Americans spend billions of dollars each year on these products — even though they offer only a temporary fix. Getting rid of persistent ...

    Read More