About Us

Home / About Us

Our practice

keystone dental arts building exterior

Keystone Dental Arts is a patient-centered practice. Dr. Roberts and our staff take care to be respectful, mindful and responsive to individual patient preferences and needs to ensure that patient values guide all clinical decisions.

We offer adult & child general dentistry services with specialization in restorative & cosmetic dentistry: bonding, bridges, crowns, dentures, Invisalign®, dental implants, veneers, & teeth whitening.

We are currently accepting new patients. We invite you to read our patient reviews and Discover the KDA Experience.


From the Spaulding Turnpike (Route 16) North or South, take Somersworth, NH Exit 9 and turn right of the ramp to merge onto Indian Brook Rd. Follow Indian Brook Rd (approx. 03 mi) to Route 108. At light, turn left onto Route 108 toward Rochester; Keystone Dental Arts is 2.4 miles North on Route 108. Our building is on the right.

Dr. Ian Roberts

Dr. Ian Roberts received his Bachelor of Science degree from the University of Northern Colorado in 2013, and his Doctor of Dental Surgery (DDS) from the University of Colorado in 2017. He is a member of the American Student Dental Association (ASDA), the Alpha Omega Dental Fraternity-Beta Iota, and the CUSODM Business Study Club. Dr. Roberts also participated in Advanced Clinical Training and Service at the University of Colorado, School of Dental Medicine, with rotations at Salud Frederick, Salud Longmont, Denver Health Westside, and the Coalition for the Homeless Stout/Champa.

Dr. Roberts was born in Nashua, NH and later moved to Ashby, MA, where he spent most of his childhood. After high school, he served our country in the United States Marine Corps. While on leave from training, he met his wife Carissa and they’ve been inseparable ever since. After marrying, the couple relocated to Colorado where Dr. Roberts attended college and receive his dental degree. During their time in Colorado, they welcomed a son, Ben. With how important family is to Dr. Roberts, he and his family later moved back to the Seacoast area, a return to his NH roots. In 2018, the Roberts family grew with the arrival of a baby girl, Zoe. 

In his spare time, Dr. Roberts enjoys spending time with his family, skiing, hiking, road/mountain biking, motorcycling, sailing, and flying.

Favorites: Food – homemade mac ‘n cheese | Music – folk | Movie – Forrest Gump | Dream Travel Destination – New Zealand



Doctor Robert Christian

Dr. Robert Christian

Dr. Robert Christian received his Bachelor of Science degree from Bucknell University and his Doctor of Dental Surgery degree (DDS) from Temple University in 1976. He is a member of the American Dental Association (ADA) and the New Hampshire Dental Society. A long-time member and past-president of the Great Bay Dental Studies Group, he is also a member of the Seacoast Implant Dental Study Club and the Spear Dental Study Club. Dr. Christian has attended over 3,000 hours of continuing education courses over his career, concentrating on cosmetic, implant, and restorative dentistry.

Dr. Christian’s career first began in Rochester, NH where he practiced for 25 years. With a growing practice, he later relocated to Somersworth and established Keystone Dental Arts. In 2019, Dr. Christian sold the practice to Dr. Roberts and remains a valuable member of our team, as an associate dentist. 

Dr. Christian lives with his wife, Diane, in Rochester and together they enjoy gardening and swimming in their backyard pool. In his spare time, Dr. Christian also enjoys golf, running and reading.

Dental Hygienists

Heather Barrett
Cindy Hougton
Dorreen Mercer

Dental Assistants

Jeane Sample
Amber Hatch
Robin Phillips

Office Staff

Maureen Turmelle
Diane Glover
Victoria Ingersoll