Our Staff


Staff at Arlington Periodontics

Five experienced, patient-friendly staff members in Dr. Tibbetts’ Arlington Periodontics office are ready to welcome and assist you with your specific treatment concerns. We are a primary care office, who will diagnose your overall dental health problems, and offer explanations and treatment of your dental needs. Our staff consists of the Office Manager, Sandra Sutton, the Periodontal Assistant, Joanne Suarez, Accounts Payable/Payroll Manager, Mary Jane Tibbetts, and Hygienists, Sally Gosnell and Jill Yeager. The staff has a collective total of 122 years of service with Dr. Tibbetts.

The goal of the entire office is to create a knowledgeable climate of warmth, understanding, attention and friendly non-confrontational communication for our patients and their referring dentists.


Sandra Sutton has been in dentistry since 1980, starting in a single employee office. She learned both the business office and assisting the dentist with patient treatments, while also ordering both business and dental supplies. She then became office manager for a two doctor practice.

Sandra, and husband, John, have two grown children, Brooke and Mitch, two grandsons, two granddaughters and two dogs. She loves outdoor activities, particularly out on the lake, deep sea fishing and Texas Ranger games. Spending time with the grandkids, however, tops the list. Lucky in games, she especially enjoys playing Words with Friends, and loves to play Texas Holdem, for fun.

Throughout her career in dentistry, Sandra says that she heard of Dr. Tibbetts, his reputation, his teachings, and knowledge. After working with Dr. Tibbetts for the past five years, she says that she wishes that she had had the opportunity to work with him twenty years ago. “I work with a great group of women, who truly enjoy working together, which makes for a great office and atmosphere.”

Periodontal Assistant

Joanne Suarez has been a Certified Registered Dental Assistant for 17 years, since completing a one year dental assisting school, followed by an internship in a dental office. During that time, Joanne gained a great deal of experience with all types of dental practices and dentists. She loves meeting new people, particularly in the dental office, and helping them to feel better about themselves through the art and practice of dentistry. She has been a valuable member of our office team for the past year.
Joanne is the mother of two teenage sons. Her greatest pleasure outside of the periodontal office, is the spend time with her sons, family and friends. Born in Myrtle Beach, South Carolina, she moved to Arlington as a young child, and has made Arlington her home ever since.

Registered Dental Hygienists

Sally Gosnell, an Arlington resident since the sixth grade, has worked with Dr. Tibbetts since 1975. A relatively new employee in the office for the past forty-one years, Sally was initially Dr. Tibbetts’ periodontal assistant before returning to school to become a dental hygienist. She worked part-time for Dr. Tibbetts while attending hygiene school, graduating from Tarrant County College in 1979, as an RHD and returned to work full time. Sally and her wonderful husband, Jody, who works for Rocket Software, have been married for thirty-four years. They have three grown children, Jared, Adam and Sarah. They love being empty nesters, and are the proud grand parents of baby Hannah and are expecting Hannah to have a baby brother in June.

Sally, an extrovert, loves people. Her hobbies include walking with her husband, dancing, and watching various sporting events, when not on her way to visit her grand daughter.

Sally says that she would like to work with Dr. Tibbetts for another forty-one years.

Jill Yeager graduated form Tarrant County College in 1984, as a Registered Dental Hygienist (RDH). She, too, is a relatively new employee, who has worked for Dr. Tibbetts for thirty-two years, and says that she feels as though the office staff and Dr. Tibbetts are her second family.

Jill’s husband, Jim, is a wonderful man. They have been married for twenty-nine years. Jim is a mechanical engineer with Lockheed Martin. They are blessed with four wonderful adult children, Josh, Jace, Jessica and Jenna. Jim and Jill now have 1 grandson, Asher.

Jill’s hobbies include watching college football, working in her yard and flower beds and reading good books.


Mary Jane Tibbetts has been a part-time accounts payable/payroll manager for forty-four years, as she is a detail person. Mary Jane has been both a former elementary school teacher and an employee of Exxon Production Research Company. When she and Dr. Tibbetts met, he was a freshman dental student and she worked for Exxon. Mary Jane and Dr. Tibbetts celebrated their fifty-second wedding anniversary in November, 2015. She has an elementary education degree from Texas A & I University, with three years of teaching experience, prior to completing business and secretarial skills courses at Texas South Most University.

The mother of two successful sons, Todd and Seth, and five grandchildren, Brendan, Jake, Austin, Caroline and Clara, Mary Jane’s leisure time is most enjoyed watching her sons’ accomplishments, adoring her grandkids, reading and traveling.