About Us

Our practice is located in the heart of Olney, Maryland. We are proud to be in this wonderful community for more than three decades. 

Dr. Dalia Shlash

Dr. Dalia Shlash grew up in Gaithersburg, Maryland and later attended the University of Virginia in Charlottesville, Virginia. She received her Doctor of Dental Surgery (DDS) degree from the University of Maryland School of Dentistry in Baltimore, MD where she received the Harry E. Kelsey Orthodontic Award and was a member of the Ferdinand Gorgas Odonatological Honors Society. Read More >>

Dr. Richard Mattson

Dr. Richard Mattson has worked in orthodontics for over 30 years and is part of the faculty of the University of Maryland. Read More >>

Dr. Richard Mattson. Orthodontist.


Donna has been a cornerstone of this practice for over 25 years. She is a skilled orthodontic assistant who keep us on task. She is a certified chairside orthodontic assistant and is a fantastic leader in organizing this office.

Esmeralda is a skilled certified chairside orthodontic assistant. She has been an important member of our team for over 10 years. She is wonderful, enriching our practice with her positive attitude and cheerful energy.

Brittany is our fabulous Front Office Coordinator. She is always ready to greet and help our patients with any scheduling, financial, or insurance related questions. Before joining our practice, she worked for many years with younger kids, which is invaluable for partnering with patients and parents. She has been a fantastic addition to our office, and we greatly value her thoughtfulness, patience, and kindness. 

Nina is a Certified Maryland Dental Radiation Technologist and a chair-side dental assistant. Nina is responsible for diagnostic records, including x-rays and intraoral and extraoral photographs. She also assists chairside with orthodontic procedures and helps make sure the office is running smoothly. Patients appreciate her enthusiasm, compassion, and attention to detail. We are so glad that she is part of the Shlash Orthodontics team.


Kelly is our office treatment coordinator. She meets patients during their first appointments and helps clarify insurance benefits and treatment options. Patients and family members greatly value Kelly’s detail-oriented approach, because she is a big help in making all feel comfortable at the office. She is very experienced in the dental field and can provide a helpful perspective when deciding between treatment options. Before starting at our office, she lived in New Jersey in the Philadelphia suburbs and worked in a general dentistry office for many years. We are so happy she has made her way to Maryland , joined our team, and brought her Philly charm!

Hayley is our newest office Front Desk Coordinators. Her friendly, cheerful demeaner and contagious laugh helps everyone feel welcomed and comfortable in the office. She is a native of Montgomery County and was a patient in the practice herself!  Her background in retail sales gives her tremendous experience working with people and understanding the importance of great patient support. We were so happy when she moved back to Maryland from Kentucky and joined our practice. 


Vivian is our fantastic sterilization technician. She makes sure all our instruments are sterilized in accordance with OSHA guidelines. She also helps makes sure chairs are disinfected and ready for the next patients and helps with other tasks. Vivian is finishing up her last year of college at UMBC and is an aspiring dentist. We all love her enthusiasm and have no doubt that she is going to do great!