Meet the Dentists

Dr. Herbert D. Egert

Dr. Herbert EgertDr. Herbert Egert graduated from the University of Maryland Dental School in 1984. After graduation, Dr. Egert worked for one year at the George Washington University Hospital. In December 1986, he bought into Dental Choice, which eventually evolved into Affinity Dental Associates. Dr. Egert is active in many dental organizations including: the American Dental Association, the Maryland State Dental Association, the Academy of General Dentistry and is past-President of the Greater Patapsco Study Group, not including his involvement in various charities. Dr. Egert especially enjoys the many aspects of cosmetic dentistry including: Porcelain veneers, all-porcelain crowns, and restoring dental implants. Dr. Egert and his family enjoy horseback riding, hiking, camping and spending time with their dogs.

Dr. Charles C. DeRoo

Dr. Charles C. DeRooCharles C. DeRoo, D.M.D., M.S. earned his B.S. Degree from California State University (Fresno), his Doctor of Dental Medicine (D.M.D.) from the University of Pittsburgh School of Dental Medicine, and his Master of Science (M.S.) Degree in Orthodontics from the State University of New York. He is board certified by the American Board of Orthodontics. Dr. DeRoo specializes in orthodontic and dentofacial orthopedic care of children and adults of all ages. He is a Diplomate of the American Board of Orthodontics, and an active member of the American Dental Association, Middle Atlantic Society Of Orthodontics, American Association Of Orthodontics, Academy Of General Dentistry, World Federation Of Orthodontics, and he was a past chairman of the Ethics Committee of the Middle Atlantic Society Of Orthodontics.

Dr. De Roo provides traditional braces, retainers, and multi-disciplinary treatment modalities. Dr. DeRoo offers orthodontic treatment with Invisalign and other clear aligner systems. He is a Premier Provider of Invisalign and Invisalign Teen. Dr. De Roo specializes in treatment planning, encompassing orthodontic treatment in combination with treatment by other dental professionals, which includes:

  • General Dentists and Prosthodontists or tooth replacement
  • Oral surgeons for treatment of patients with facial skeletal disorders
  • Periodontal for treatment of patients with gum disease
  • Invisalign – esthetic, almost invisible, system of moving teeth without braces

"I truly love what I do as an orthodontist to create new, beautiful smiles.  I am sensitive to the unique concerns and needs of each individual who honors me with a visit to our practice.  Orthodontic treatment can be successful at any age, and I am very excited every time I can provide a life-changing experience with improved self-confidence and self-esteem by simply changing a smile.  Please call or stop by and say hello ... we look forward to meeting you for a complimentary consultation."

Dr. Kathryn Mutzig

Dr. Kathryn MutzigDr. Kathryn Mutzig is a Michigan native. Born in Midland, she graduated from Ohio State University with a degree in psychology and certification in dental hygiene. She earned her doctor of dental medicine degree from the University of Pennsylvania and her certificate in periodontics from the University of Maryland.

Dr. Mutzig is active in many dental associations and study clubs. From 1999 to 2000, she served as president of the Baltimore County Dental Association. She is also a member of the American Academy of Periodontics, American Dental Association, Maryland State Dental Association and the Maryland Society of Periodontics. Dr. Mutzig and her daughter share many hobbies and interests, and in their spare time can be found hiking, boating, skiing, kite flying and scuba diving.


Dr. Jay McEachern

Dr. Jay McEochernAs a family oriented practitioner, Dr. Jay McEachern,Jr. is an experienced dental professional whose top priority is the well-being of his patients. He is a dedicated clinician with over 30 years of service as a dental healthcare provider. He is a former part-time supervising clinical dentist that served 10 years in the dental hygiene program at the Baltimore City Community College. His demeanor is professional, pleasant and positive and he has a warm chairside manner. He is passionate about providing comfortable and quality patient care to every patient. He enjoys educating patients and is fully trained in all aspects of general dentistry to create and maintain healthy smiles.

Dr. Mc Eachern graduated from the University of Maryland School of Dentistry in 1986. He practiced in private practice for 15 years before joining a multi-specialty group practice for 12 years. Dr. McEachern looks forward to practicing with Affinity Dental Associates.

In his personal life, Dr. Mc Eachern enjoys spending his time away from the office with his family, deep sea fishing, skiing,biking,and cooking. He has been happily married for thirty-nine years and has one daughter.