The Apex Dental Staff

Manuela Gauthier
Dental Assistant, Bookkeeper, Laboratory Technician

Northborough MA Dentist Office Staff - Manuela GauthierManuela, wife of Dr. Gauthier, is the office bookkeeper as well as dental assistant and lab tech. Born and raised in the Munich area of Germany, Manuela trained as a dental assistant before moving to the United States in 1996.

Manuela and Dr. Gauthier have two children, a boy and a girl, and they enjoy skiing as a family. Manuela enjoys being outdoors and participates in 5Ks, she also enjoys biking and hiking.

Kim Hannum – Dental Assistant & Laboratory Technician

Northborough MA Dentist Office Staff - Kim HannumKim has over 30 years of experience in the dental field, five of them have been spent with Dr. Gauthier at Apex Dental. She is a graduate of The Connecticut Academy of Dental Technology where she earned her certification as a dental technician in ceramics (CDT). Kim also completed a dental assisting course at the New England Dental Assistant School and has radiology certification. When not at work, Kim enjoys vacationing in Maine and sharing quality time with her family and friends.

Katey Tata – Certified Dental Assistant

Northborough MA Dentist Office Staff - Katey TataKatey started in the dental field in 2004 as a patient service representative. She later received a certification from Boston University School of Dentistry for Dental Radiology and acquired her CDA (Certified Dental Assistant) from the Dental Assisting National Board. In addition to her dental work, Katey enjoys snowboarding and going to the beach.



Donna Morelli – Office Manager

Northborough MA Dentist Office Staff - Donna MorelliDonna comes to Apex Dental with an impressive background in dental office management. With over 20 years of experience, Donna has worked in all dental specialties. She is also a member of the Delta Dental Office Manager Advisory Council. Outside of work, Donna enjoys volleyball and spending time with family.



Tina Arsenault – Registered Dental Hygienist

Northborough MA Dentist Office Staff - Tina ArsenaultTina earned her Dental Assistant Certificate in 2003 from Quinsigamond Community College. In 2005, she obtained an Associate Degree of Science and met the requirements to become a Registered Dental Hygienist. Her passion for dentistry led her to pursue continuing education to earn a Local Anesthetic Certificate. In her free time, Tina enjoys camping, gardening and spending time with family.

Christine Turpin – Registered Dental Hygienist

Northborough MA Dentist Office Staff - Christine TurpinChristine is a Registered Dental Hygienist with over thirty years experience, the last seven have been spent with Apex Dental. She is a graduate of Quinsigamond Community College Dental Hygiene Program. She also obtained her anesthesia permit. Christine’s goal is to help all of her patients achieve a healthy and attractive smile.

Outside of dentistry, Christine enjoys cooking, hiking, reading and spending time with friends and family. She is married with two grown sons and two grandchildren.

Ashley Leone, CDA

Northborough MA Dentist Office Staff - Ashley LeoneAshley graduated with her certificate in Dental Assisting from Quinsigamond Community College in 2011 along with a Clinical Excellence Award. She is a great support to Doctors, Co-workers and Patients all while striving to make every individual as comfortable as possible.

In her spare time, she enjoys family gatherings, making memories with friends, and traveling to new destinations.