Meet Our Doctors

I was originally born in Caracas, Venezuela, and my family and I immigrated to the United States in the fall of 1987. As a boy, my family instilled in me the importance of education, perseverance, integrity, respect and loyalty, among other values.

Fast forward thirty years and these same values continue to guide my actions and help me better serve my patients and community.

I attended Wheeling University, where I received my Bachelor of Science. I continued on to earn a master’s in microbiology from Thomas Jefferson University. I graduated from the West Virginia University School of Dentistry in 2011. Since graduating from dental school, I have acquired additional training in areas of Invisalign®, BOTOX®, implant dentistry, full-mouth rehabilitation and obstructive sleep apnea.

I am proud to say that, over the years, we have helped many patients achieve their oral health and aesthetic goals. It is my hope that we can be of service to you!

Dr. Emily Sewell, originally from Scranton, Pennsylvania, graduated summa cum laude with a Bachelor of Science from the University of Scranton. She earned her Doctor of Dental Surgery and graduated magna cum laude, third in her class, from the University of Maryland School of Dentistry. She is currently an active member of the Academy of General Dentistry, and the American Academy of Cosmetic Dentistry. Dr. Sewell provides her patients with the latest technology. She has been extensively trained in digital dentistry, BOTOX treatments and Invisalign, and she is expanding her dental knowledge every day.

Outside her professional activities, Dr. Sewell enjoys visiting national parks, golfing and shopping. She resides in Baltimore with her family, Chris and Jinx.

Fun fact: Dr. Sewell has visited over 50 National Historic Sites and Parks across the country; her favorite site is The Hermitage, Andrew Jackson’s estate in Nashville, Tennessee. She even got lost in the Mojave National Preserve without cell phone service for several hours.

Dr. Carissa Maguire was born and raised in Fort Worth, Texas. She completed her undergraduate studies at Texas A&M University in College Station, earning a Bachelor of Science degree. She then earned her Doctor of Dental Surgery from the University of Texas Health Science Center in San Antonio, graduating magna cum laude in 2009.

As a military spouse, Dr. Maguire has practiced dentistry across the United States, serving patients in a variety of settings. This unique opportunity has broadened her expertise in providing comprehensive dental care and helping patients restore healthy, beautiful smiles.

Dr. Maguire is committed to creating a comfortable and welcoming environment for her patients. She takes the time to listen to their concerns, answer questions and build trust to ensure each patient feels confident in their care.

When she is not caring for patients, Dr. Maguire enjoys spending time with her family. She loves skiing, traveling and golfing, as well as exploring the natural beauty and attractions of Maryland and the East Coast with her husband and two sons.

Greetings! I am Dr. Olivia Ogbuaku. I am originally from Bowie, Maryland, and was raised by two wonderful Nigerian parents. I earned my Doctor of Dental Surgery degree from the University of Maryland Baltimore School of Dentistry in 2023. Following this, I completed a one-year general practice residency at BronxCare Health System in Bronx, NY.

Outside of dentistry, I enjoy spending time with my dog, Tina Snow, traveling, reading, exercising and swimming. These activities help me stay balanced and maintain the energy I bring to my work.

I am thrilled to join Severn River Dental Health Center, where I look forward to providing high-quality and compassionate care to help you meet all of your dental needs.

It is such a privilege to be a part of the team at Severn River Dental Health Center. I am so grateful to have found a profession that I love and the opportunity to share that passion with my staff and my patients. I really believe that at Severn River Dental Health Center we are changing the way that people experience dentistry.

I am committed to working with each of my patients on creating a custom treatment plan that helps them live happier, healthier lives. Establishing a trusting relationship is the first step to this, and I look forward to meeting you in our beautiful office in the near future.

When I am not in the office I like to spend time with my family watching movies and traveling. I am an avid reader and always looking for my next book!