About our Northampton Dental Office

With more than 25 years of experience, Northampton Dental Specialists Group uses the latest technology to provide you with a high-quality, comfortable dental experience. Our advanced training in many facets of dentistry allow us to perform most procedures right here in our Northampton, MA office.

We understand that dentistry can be a stressful experience for some people, which is why Drs. James Clayton, Boriana Canby, Alfred Lutaaya and Claire Edwards strive to create a relaxed, friendly office environment, where your needs and concerns will be met with compassion.

Northampton Dental Specialists Group is a full-service general dental practice providing:


To find out how we can help you improve and maintain your oral health and the beauty of your smile, schedule an appointment at our Northampton dental office. We look forward to meeting you!


Dr. James E Clayton Jr.

A resident of Northampton since 1982, Dr. Clayton has been practicing dentistry and enjoying the Pioneer Valley, and all it has to offer ever since his arrival in 1982. “In our modern King Street office, we can provide comprehensive dental care under one roof. My goal for my patients is to deliver the best care possible in a sensible approach that we can both agree upon.”

Dr. Boriana Canby

Having been a dentist in Plovdiv, Bulgaria for almost ten years, Dr. Canby worked in an educational setting, as an Assistant Professor at the I.P. Pavlov Medical University and ran her own practice. Upon arriving in the U.S., she attended dental school at the University of Pennsylvania and graduated in 2006, with her U.S. DMD degree, and started with NHDSG in 2007.

Dr. Claire Edwards

I obtained my dental education at Rutgers Dental School formerly known as University of Medicine and Dentistry of New Jersey. There, I was inducted to Gamma Pi Delta Prosthodontic honor society. Through participation in continuing education courses I am dedicated to providing current and quality dentistry to my family of patients, and began my career at NHDSG in July of 2015. My dental memberships include the Massachusetts Dental Society, American Dental Association, and Pioneer Valley Women Dentists.

Dr. Alfred Lutaaya

Dr. Alfred Lutaaya, a licensed general dentist, graduated from University of Connecticut School of Dental Medicine before completing a general practice residency (GPR) at Danbury Hospital Connecticut, and began his career at NHDSG in August of 2021. His robust dental training in hospital and community health settings have enabled him to care for patients of all walks of life. As a dental professional, he strives to help patients navigate their dental care in a compassionate and comprehensive manner.


Alyssa, RDH

Alyssa has been a hygienist since 2016, after studying dental hygiene at Mount Wachusett Community College where she graduated at the top of her class and received the Massachusetts Dental Hygiene Association’s Academic Award for that year.  

She worked for many years as a dental assistant before becoming a hygienist, and also has a bachelor’s degree in Kinesiology from the University of Massachusetts in Amherst. She began her career at NDSG in March of 2021, lives in Feeding Hills with her fiancé on his family’s farm.  In her free time she likes staying active and exercising, enjoys science fiction, and loves snuggling her pets.  

When caring for patients in our practice, she prides herself on being thorough and gentle, and strives to educate patients on the best ways to maintain optimal oral health for a lifetime.  You can probably hear her singing from the waiting room, and she is excited to meet you for your first appointment with her. 

Greyshmarie, RDH

RDH Greyshmarie Gonzalez, best known to her patients as Greysh. was born in Puerto Rico and was raised in Chicopee, MA. She is bilingual with Spanish as her second language. Greysh graduated from Springfield Technical Community College with honors in 2017. She then became a Registered Dental Assistant to further her experience in the dental field. 

She went on to study Hygiene at Goodwin University where she graduated in 2020, shortly after becoming a Registered Dental Hygienist – and started working at NDSG in September of 2020. Greyshmarie is devoted to patient education and is dedicated to providing her patients with the best experience while in her chair. In her spare time, Greyshmarie loves creating new memories with her son, spending time with family, and traveling to different countries.

Cassie, RDH

A graduate of STCC, Cassie completed the dental assisting and dental hygiene programs, and began working at NDSG in September of 2021. Cassie loves creating a positive dental experience for her patients by being gentle and easy going. She finds importance in helping others maintain their oral health. She loves to travel and enjoys staying active in her free time.

Amber, RDH

Amber is one of our registered dental hygienists who is also certified in administering local anesthesia to patients who may need more in-depth cleanings. In 2018, directly after graduating from the Springfield Technical Community College Dental Hygiene Program, Amber was hired at our office in June of 2018, and has been a great addition to our team. She has shown to have a passion for teaching and educating her patients as well as getting to know them on a more personal level to provide them with individualized care tailored to their needs. 

She also has a background in working with individuals with mental and physical disabilities as she grew up going to work with her mom who worked with adults with disabilities, in which Amber also spent a few summers working at as well. To advance her career, she is working towards earning her bachelor’s degree in public health through Southern New Hampshire University and will graduate in 2022. 

Outside of her professional life, Amber has a three-year-old daughter, Jazzaiah, and a fiancé who has a six-year-old son, Maximus, and a ten-year-old son, Astonish, that they are raising together as a beautifully blended family. As a hygienist, Amber takes pride in applying the knowledge, patience, and critical thinking skills she has gained in both her personal and professional life.

Christina, RDH, BSDH

Christina has been a dental hygienist with our office since 2017. She earned her Associates in Dental Hygiene from STCC in 2017, and began her career at NDSG in June of 2017. She has also earned a Bachelors in Dental Hygiene from MCPHS in 2021. Christina is passionate about making each patients’ dental experience positive, educational and of the highest quality. Helping patients with their dental needs to maintain or regain optimum oral health is what she loves most about her job. 

Her gentle touch and compassionate personality have been most welcomed by our patients. When she’s not in the office you will find her cooking a new recipe or enjoying the sun at the beach! One thing you may not know about her is she was an athlete and an equestrian all her life up until college.

Kelli, RDH

I grew up locally in Williamsburg, MA. I attended high school at The Williston Northampton School . I then graduated from
The University of Vermont in 2004, with an Associate’s Degree in Dental Hygiene, and began working at NDSG in December of 2004. I also started working at Clayton & Canby’s Office in 2004. I grew up playing many sports and cheering on all New England teams! In the winters, I enjoy to snowboard and ski. I’m always looking forward to my next travel adventure!

Beth, RDH

Beth completed her Associate’s Degree in Dental Hygiene from STCC in 1991. She then joined our group as a full-time hygienist in August of 1990 and has been with us ever since. When not helping patients maintain their smiles, you can find her careening down a snowy mountain, boogie boarding on some serious waves, or hanging out with her husband and three teen-aged children. She’s also an avid sea glass collector and enjoys a good wine tasting every now and then

Tracy, RDH

Tracy is from Northampton, she and her husband have 2 sons and a dog-Freya.  Tracy has been a hygienist for 35 years, and began at NDSG in March of 2004, and loves working with patients and educating them on the importance of dental health. I have been with this practice since 2004 and graduated from STCC in 1987.

Office Manager

Jennifer Racine, Office Manager

Jennifer has been part of the dental industry for over 24 years. She started her dental career in 1998 as a receptionist and from there she earned her Radiology Certification in 2003 and trained for chairside dental assisting.

She has worked in all aspects of the dental field from schedule coordinator, treatment plan / financial coordinator, assisting and then onto her management position. Jennifer has a passion for helping others reach and achieve their dental goals. She is devoted to providing the best experience and customer service she can for her patients.

She joined Northampton Dental Specialists Group (formerly Clayton & Canby Dental) in July of 2021 and enjoys working with a great and passionate dental team. In her free time she enjoys spending time with her son, family and friends. She loves staying active and the outdoors from mountain bike riding, the beach, hiking and traveling.

Admin Team

Assistants Team