Our Staff


Our friendly, skilled team will make sure that your visits with Dr. Kaur and Dr. Gunraj at Randolph Endodontics/Orthodontics are pleasant and relaxed. We will explain all of your treatment options so that you can take an active role in your orthodontic and endodontic care. We invite you to contact our office today to learn more about us and to schedule an appointment with our orthodontists in Silver Spring and Baltimore, Maryland.

Norma Aridod - Office Manager


I was born in Amman, Jordan. I came to the U.S. at age five. I am happily married with four children: 2 boys and 2 girls. I have always resided in Montgomery County.

I have been in dental field for over 15 years. I have received speciality training from Disney Institute and Maryland Business Institute. At work, I truly enjoy every aspect of patient interaction and getting to know parents well. Away from work, I enjoy doing fun activities such as shopping, going to see museums, outdoor water activities and relaxing on the beach with my family. There is never a down time.

Evelin Barrera – Front Desk Coordinator

Born and raised in the U.S. along with three siblings. I have always been in the metropolitan area. I am a busy mom with 3 children: 2 girls and 1 boy ages 12, 8 and 4.

I have worked with Dr. Gunraj and Dr. Kaur off and on for eight years. I have taken a lot of practice management/continuing education classes over the years. I love to see children in our practice and to be part of their growing life. It is a pleasure to see all the beautiful smiles smiles that we create. My passion is to attend and be part of my kids sports- football and soccer. I love to catch up with sleeping also.

Elif Aydin – Clinical Orthodontic Assistant


Born in Turkey, I came to the U.S. in 2006. I reside in Silver Spring and got married in 2008.

I have worked with Dr. Kaur for 4 years. I am a certified orthodontic assistant and certified radiology technician. I have taken a lot of clinical courses to advance my knowledge and continually striving to perfect my skills. Orthodontics is a very fulfilling career to me because it is a true joy to be part of the patient at start of the treatment and creation of their beautiful smile at end of the treatment.

Away from work, I am a chef also. I enjoy cooking, traveling and watching movies. I am very close to my family.

Mary Biratu – Clinical Endodontic Assistant


Born in Ethiopia, I came to the U.S. in 2000. I reside in Virginia and am not married yet.

I have been part of the practice for 2 years. I am actively engaged in the community and taking continuing education to advance and evolve myself as the best in dentistry. I love working with Dr. Gunraj and seeing transformation of patients in pain before treatment to raving/happy patients after treatment. I feel blessed to work in a positive, caring and fun atmosphere. Outside of working life, I like adventurous outdoor sports like sky diving and kayaking.

Gina Roscala – Clinical Orthodontic Assistant


Born in Canada, I came to the U.S. in 1985. I have lived in Silver Spring area ever since. I have a thirteen year old daughter. I come from a family of four sisters who also live in the area as well.

I have worked with Dr. Kaur since 2002 off and on. I am a certified orthodontic assistant and certified radiology technician. I love my job because I am surrounded by positive people with positive attitude in a positive environment. My hobbies include reading, spending fun time with my sisters, and being involved with my daughter’s dance competitions. I am very close to my family.