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Valley Endodontics and Microsurgery

Owings Mills, MD

Dr. Prasad Challagulla

This particular area of dentistry provides both unique challenges and rewarding experiences for doctors. Each day, I am likely to encounter a patient who is in pain or is fearful of treatments, and I take great pride in upholding my responsiblilty to offer meaningful care in those situations. There is no better feeling than being able to relieve someone's suffering and to lead them to a place of increased comfort and happiness.

Dr. Challagulla was born in India and received his Bachelors of Dental Surgery from Bangalore University before relocating to Boston, MA to advance his knowledge in the field of health services.  While in Boston, Dr. Challagulla obtained his Masters in Public Health at Boston University and pursued his burgeoning interest in the field of endodontics.  Determined to help prospective patients better educate themselves about oral health and improve their overall wellness, he gained entry to  the University Of Pennsylvania School Of Dental Medicine and its post-graduate endodontic program. During his residency, Dr. Challagulla taught several microsurgery courses to global audiences, and he was also the lead investigator in a published research article entitled “Effect of Splint Coverage in Laser Doppler Readings.”

Dr. Challagulla has a deep passion for his role as an educator, which led to his appointment as an Adjunct Assistant professor at the University of Pennsylvania and has enabled him to gain direct exposure to the most current treatment modalities in the endodontic field.

A fully-licensed practitioner, Dr. Challagulla is Board Certified by the American Board of Endodontics which is considered the ultimate clinical credential, and only the top 20 percent of all specialists receive this accolade.

An active supporter of the local community, Dr. Challagulla is a member of the American Association of Endodontists (AAE), American Dental Association (ADA), American Association of Public Health Dentistry (AAPHD) and the Maryland State Dental Association (MSDA). When not practicing endodontics, Dr. Challagulla enjoys spending time with his wife and two children.

Dr. Sean O' Sullivan

Dr. O'Sullivan grew up in the Wilmington, Delaware area.  He graduated from the Mount Saint Mary's College with a Bachelor of Science degree in 1987.  He earned his Doctor of Dental Surgery degree from the Baltimore College of Dental Surgery, University of Maryland in 1991.  He then completed a 1-year Advance education in General Dentistry program at Fort Carson, Colorado and was awarded a certificate in 1992.  He practiced general dentistry for 6 years both in the Army and in private practice.  He then returned to school at the Virgina Commonwealth University, School of Dentistry for his specialty training in Endodontics.  Dr. O'Sullivan was awarded his certificate in Endodontics in 1999 from VCU.  He completed 10 years of active duty service and 4 years of reserve service in the Army and was given an honorable discharge from duty in 2001.  His final duty assignment was at Fort Benning, Georgia where he served as Chief, Endodontics and Endodontic instructor to the AEGD program.  Upon leaving the military, Dr. O'Sullivan moved his family back to Maryland and has been practicing in Owings Mills ever since.

He completed his board certification in 2003 from the American Board of Endodontics.  He has authored articles in the Journal of Endodontics and has been a guest lecturer for the Army's endodontics training program.

He maintains active membership in the College of Diplomates, the American Association of Endodontics,the American Dental Association, the Maryland Dental Association, and the Baltimore County Dental Association.  Dr. O'Sullivan has been named Top Dentist by Baltimore Magazine several times.  

When he is not in the office having fun doing root canals, he enjoys being outdoors and spending time with his family.