Meet the Doctors

Dr. Aaron Mannella, D.M.D

Dr. Mannella

Dr. Aaron Mannella founded Pediatric Dental Associates of Randolph in 1991. He is Board Certified in Pediatric Dentistry and a Diplomat of the American Academy of Pediatric Dentistry. Dr. Mannella is highly respected in his field. He is the chair of Pediatric Dentistry at Morristown Hospital where he donates his resources performing dental restorations on patients who could not otherwise afford treatment. Dr. Mannella has been named a top dentist in New Jersey Monthly Magazine and NJ Family magazine since the lists’ inception. He maintains membership in many prestigious organizations including the American Dental Association, American Academy of Pediatric Dentistry, American Society of Dentistry for Children and Tri-County Dental Association.

Board Certified in Pediatric Dentistry and a Diplomat of the American Academy of Pediatric Dentistry, Dr. Mannella is highly respected in his field. He also maintains memberships in many prestigious professional organizations, such as the American Dental Association, American Academy of Pediatric Dentistry, American Society of Dentistry for Children and Tri-County Dental Association.

In his free time Dr. Mannella enjoys teaching snowboarding, golfing and spending time with his wife Dr. Susan Arnold. They have 3 adult children.


Dr. Mary Beth Giacona, D.M.D

Dr. Mary Beth

Dr. Mary Beth is a Board Certified Pediatric Dentist who graduated with honors from Columbia University school of Dental and Oral Surgery. She is a leading expert in the field of cleft palate-craniofacial deformities and is a member of the Craniofacial Teams at both Columbia University and Morristown Medical Center. At Columbia University she is also an Assistant Clinical Professor in the Department of Pediatric Dentistry. At Morristown Medical Center Dr. Mary Beth is an instructor and mentor in the General Practice Residency.

She is an active member of the American Dental Association, American Academy of Pediatric Dentists, New Jersey Dental Association, College of Diplomates- American Board of Pediatric Dentistry and the American Cleft Palate-Craniofacial Association.

In her free time, Dr. Mary Beth enjoys reading, gardening and spending time with her husband and four young children.


Dr. Geena Russo, D.M.D

Dr. Mary Beth

Dr. Russo is a Board Eligible Pediatric Dentist who earned her D.M.D from Rutgers School of Dental Medicine and completed her pediatric specialty training at New York University College of Dentistry. Dr. Russo is passionate about serving those less fortunate and volunteers her time offering dental care to children In the United States and around the world.

Dr. Russo is a lifelong resident of New Jersey and enjoys spending time with her family and friends, exercising, traveling and reading when she is not caring for little white smiles.

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