Meet Our Manchester Team

Preetha Mariappan, DMD

Dr. Preetha Mariappan provides gentle, patient-centered dental care that improves oral health and smiles. She appreciates the trust placed in her by her patients and strives to exceed their expectations in treatment and results. For Dr. Preetha, spending her days helping people develop smiles they love and that fill them with confidence is fulfilling.


By actively seeking out continuing education opportunities, Dr. Preetha stays current with developments in dentistry. She completes a variety of courses each year and attends dental conferences, too. Dr. Preetha is committed to providing each patient with gentle, high-quality dental care in a comfortable and pleasant atmosphere.

Personal Life

Dr. Preetha grew up in Chennai, India. She currently resides in Southern New Hampshire with her husband, a business manager. They have been blessed with a daughter and a son. When she’s not working, Dr. Preetha enjoys spending time with family and friends. She also enjoys music and traveling.

Archana Selvaraj, DMD

Throughout her dental career, Dr. Selvaraj has always provided the highest level of compassionate, ethical care to her patients. She is grateful to Children & Family Dentistry for giving her the opportunity to serve the Manchester community.

It is Dr. Selvaraj’s belief that the best way to achieve the highest treatment objectives is by taking a patient-centered approach, and has become an ardent supporter of this philosophy as she practices it on a daily basis. She is confident in her ability to deliver the best possible dental care to patients through a compassionate approach. At Children & Family Dentistry, she has the freedom to put her patients’ best interests first.


Dentistry is an ever evolving field with the vast array of developments that stem from continuous research and development projects world over. Dr. Selvaraj strives every day to gain new knowledge and learn ways to implement it in her practice. She feels honored to be a part of this noble profession and loves to provide the best dental care for her patients, keeping abreast all the latest developments in the field of dentistry through a constant perseverance to improve herself every day.

Delphine Severe, DDS

Dr. Delphine Severe spends time talking with and getting to know each patient. By actively listening to the patient’s goals and concerns, she is able to develop a care plan that works for their needs. Dr. Severe focuses on offering painless dental treatment that improves smiles as well as oral and overall body health. Hearing a patient’s thanks at the end of procedure, and seeing their happy smile, makes her happy.

Dr. Severe joined Manchester Dental Group in 2014. She speaks English, Creole, and French.


  • University of Haiti, Faculté d’odontologu, 1999 Port-au-Prince, Haiti
  • Doctorate of Dental Surgery, NYU College of Dentistry
  • Residency, Hospital Notre Dame Petit-Gooves, Haiti


Office Manager

Yesenia keeps our office running smoothly and efficiently. This allows the rest of our team to focus on what’s important: our patients’ comfort and smiles! Yesenia maintains patient and staff records, schedules visits, does our staff interviews, and oversees inventory control. She also ensures compliance with state and federal regulations. Always quick to smile, Yesenia works hard to make sure our patients are happy throughout their visits.

When she’s not working, Yesenia enjoys time with her three children: Ubaldo, John, and Edwen. She also has a dog, Shiloh. Yesenia is an incredible baker, too!

we accept most dental insurance plans

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