Meet The Team

Dr. Deepti Sareen, D.D.S.

Dr. Sareen started her journey in the Dental field about 20 years ago, after graduating with an M.D. Stomatology degree from Tver State Medical Academy. She earned her DDS degree from the prestigious University of Michigan, School of Dentistry and is also certified in I.V. Moderate Sedation from Duquesne University, Pittsburgh PA. Dr Sareen is a Qualified dentist of the Academy of Dental Sleep Medicine & treats Sleep apnea & snoring with Oral Appliance Therapy.

Dr Sareen divides her time between her two practices in Northern Virginia, Fairfax - East Market Dental and Ashburn - Ashburn Dental Group, where she specializes in: 

  • Wisdom Teeth Extractions
  • IV Moderate & Oral Conscious Sedation
  • Implant Overdentures
  • Sleep Apnea & Snoring treatment

 Professional Degrees:

  • Doctor of Dental Surgery - DDS from University of Michigan, School of Dentistry in Ann Arbor, MI.
  • Mini Residency in I.V. Moderate Sedation from Duquesne University, Pittsburgh PA.
  • Residency in Oral & Reconstructive Maxillo-Facial Surgery from Tver State Medical Academy, Tver, Russia.
  • M.D. (Stomatology) from Tver State Medical Academy, Tver, Russia

Awards & Recognition:

  • American Academy of Dental Sleep Medicine (AADSM) Qualified Dentist 
  • Zest Certified Master of Implant Overdentures 
  • Invisalign® Preferred Provider
  • Certification in Immediate Implant Placement from Midwest Implant Institute, Columbus, OH

Professional Memberships:

  • American Academy of Dental Sleep Medicine (AADSM)  
  • American Academy of Implant Dentistry (AAID)
  • Academy of General Dentistry (AGD)

Dr. Deborah K Johnson, D.D.S.

Board Certified Periodontist

Dr. Johnson completed a 25 year, tour of duty in the United States Naval Dental Corps, served as mentor for Periodontics and Exodontia at Great Lakes Naval Training Center and at the National Naval Dental Center in Bethesda, MD. Adjunct Clinical Professor, Naval Postgraduate Dental School, National Naval Medical Center, Bethesda, MD from November 2003 - June 2006. Joined University of Minnesota School of Dentistry faculty as Clinical Associate Professor on retirement from the military on June 2006 till March 2020 and started Private practice thereafter.

Her practice areas are periodontal treatments, soft and hard tissue grafting, impacted extractions, Full mouth Implants, All on 4 Implants, Wisdom Teeth surgery and Sinus augmentations. Dr. Johnson has the certification for IV sedation from Dental Board of Virginia.

Professional Degrees:

  • Residency in Periodontology from Naval Postgraduate Dental School 
  • D.D.S. from University of North Carolina, 1981
  • B.S. from North Carolina State University (Zoology), 1975

 Awards & Recognition:

  • Fellow, Academy of General Dentistry- July 1988
  • Navy and Marine Corps Commendation Medal - 1992, 1997
  • Navy Meritorious Service Medal-2006

 Clinical Board Certifications:

  • Diplomate of the American Board of Periodontology

Dr. Mohamed Elghannam, DDS

Dr.Elghannam ( Liked to be called Dr.Mohamed Or  Dr. E  )  has been a dentist for more than 20 years! He first graduated  from Alexandria university, faculty of dentistry, Egypt.  He started his own private clinic in 2004 in Alexandria , Egypt. After one year of training in dental implant field, he started placing dental implants and restored them in his clinic. He joined the ICOI ( International Congress Oral Implantologist ) and become a fellow and diplomat.

 In 2012, he finished 3 years of advanced training in oral surgery and earned his master’s degree in oral and maxillofacial surgery from his same previous university in Egypt.  In 2017 , Dr. Elghannam moved with his family to the United States. He practiced as an oral surgeon  in Egypt for many years before moving to the states. He attended many credit courses in dental implant at Columbia university, School of Dentistry -NY and UCLA , School of Dentistry- CA.

 In 2018-2020  he completed 2 years of postdoctoral advanced implant program at New York University ( school of dentistry ). During his residency in NYU he published many articles about dental implant in peer reviewed journals. In 2021 he finished one year General Practice Residency program at Meharry Medical College in Nashville, Tennessee. Dr.Elghannam loves doing dental implant surgery, his passion to make his patients smile big.



Full mouth rehabilitation ( All in X Implants)

             Implant surgery &Restoration

-          Oral surgery

-          Bone grafting

-          Sinus surgery

-          Implant  overdentures ( Snap in Dentures )

-          Emergency treatment

-          General Dentistry

-          Sedation Dentistry

Dr.Elghannam believes in comprehensive care. This involves not only addressing any  concerns patient may have, but also seeing the bigger long term picture in patient treatment plan. He is passionate  about treating every patients with care and customizing plans as he understands everyone has different needs. Dr.Elghannam has more interest to  Oral surgery clinical applications , continuing education , research in dentistry and cutting edge technology.

 Dr. Elghannam has been married for 22 years and has 5 daughters, they are his inspiration to work hard. He enjoys traveling with his family and making new friends. In his free time he loves to read, watch soccer games, play golf, and run. 

Dr. Joanna Marie Acosta-Sassoon

Dr. Acosta-Sassoon grew up in Virginia Beach, VA, and dreamed of becoming a dentist since high school. She was always fascinated by the story behind every smile, and the beauty that a contagious smile can bring, physically and emotionally. Dr. Acosta-Sassoon is dedicated to creating an empathetic and educative dental experience that is catered to positively transforming patients' oral health. She approaches dentistry with care and compassion, and strives to restore confident smiles by providing quality treatments. She hopes to inspire those who are seeking dental wellness that it is possible and that you are not alone in this journey!

In her free time, Dr. Acosta-Sassoon loves spending time with her family, playing board games, and foodie adventuring with her husband.

Professional Degrees:

  • Doctor of Dental Surgery - DDS from Virginia Commonwealth University, School of Dentistry in Richmond, VA
  • Advanced Education in General Dentistry, Chief Resident - AEGD from University of Maryland, School of Dentistry in Baltimore, MD
  • Master of Health Management Systems - MHMS from Duquesne University in Pittsburgh, PA
  • BS in Biology, Minor in Chemistry from Virginia Commonwealth University in Richmond, VA

Awards & Recognition:

  • Certified Invisalign ®  provider
  • American Academy of Implant Dentistry (AAID) associate fellow candidate
  • Fellow of the Academy of General Dentistry (FAGD) candidate

Professional Memberships:

  • American Dental Association (ADA)
  • Virginia Dental Association (VDA)
  • Academy of General Dentistry (AGD)
  • American Academy of Implant Dentistry (AAID)
  • American Academy of Clear Aligners (AACA)