2017-2018 SCDHA Officers


Nancy Johnston, RDH

Columbia, SC



Nancy is a Midlands Technical College graduate, 1987.    

She joined Health Promotion Specialists in 2005, currently serving as Professional Relations Coordinator for South Carolina’s first and largest school based sealant program. Nancy is an advocate for dental hygiene opportunities, participating in the development and oversight of government statute and regulations as they relate to small business, dentistry and the practice of dental hygiene.  


If you want to meet like-minded individuals, share your expertise with others and your community, or you just want to learn something, I invite you to contact me and explore SCDHA.    -Nancy


Bigger does not mean better. But better is how we get bigger.

Vice President





Theresa Edwards, RDH, CDA, DMRT

Greer, SC


Theresa has been a registered dental hygienist for the last eight years. Theresa graduated with Associate Degree in Health Sciences from Greenville Technical College in Greenville, South Carolina in the spring of 2008. Prior to going back school to further her education as a dental hygienist, she obtained a Degrees in Graphic Design and Fine Arts.


Theresa held the position of Vice President for the Student South Carolina Dental Hygiene Association while attending school. She is an active member of the American Dental Hygiene Association. In addition to currently serving as the Secretary of the South Carolina Dental Hygiene Association Theresa is currently employed with Carolina Dental Group in Greenville, where she has worked for the past 7 years as a certified dental assistant and registered dental hygienist. Theresa attended TruDenta training at the Nova School of Dentistry, receiving her certification to become a dento mandibular rehab therapist, working along with Doctors Kevin and Scott Stoller, treating patients with TAU dysfunction and migraines.


She continues to enjoy seeking out advancements in the dental field to not only help fellow college advancements, but to serve and educate her patients to the fullest.


Shera Davis, RDH, BS

Travelers Rest, SC


Shera is a graduate of both the Medial University of South Carolina and the University of North Carolina with a BS degree in Dental Hygiene and Dental Auxiliary Education.  Shera taught dental auxiliaries at the Medical College

of VA for 3 years.  She worked in private practice in Greenville, SC with Dr. Roy E. Strickland for 32 years and has continued in that same practice for the past 3 years with Dr. Chad and Dr. Jill Colson.   Shera has devoted her career to continuing her education in order to stay abreast in the ever-changing world

of dentistry.  She maintains that being actively involved in her dental hygiene associations with like-minded individuals has been a huge influence to her success in the practice of dental hygiene.   Her favorite quote to live by is,

“Perfection is not attainable, but if we chase perfection we can catch excellence”.

Senior Delegate

Daiphin R. Bober, RDH, CDA, BS

Summerville, SC



Daiphin has been a RDH since 1987. She graduated from the University of Rhode Island in 1987 with a Bachelor of Science Degree in Dental Hygiene. In 1997 she received her Teaching Certificate from Bridgewater State College in Massachusetts. She taught Dental Hygiene and Dental Assisting in Rhode Island, Massachusetts, and Pennsylvania for 13 years before moving to the Charleston, South Carolina area in 2015.

She has been an active member of the ADHA for the past 29 years, having served as President of the Rhode Island Dental Hygienists’ Association, Northeast Pennsylvania Dental Hygienists’ Association President, a Trustee on the Pennsylvania State Dental Hygiene Board, and CE/Corporate Sponsor Chair for PDHA Annual Session prior to relocating to the South Carolina in the Spring of 2015.

Daiphin currently works part time as a clinical Dental Hygienist in Summerville, South Carolina. She currently serves as  Junior Delegate and CE Chair for the South Carolina Dental Hygienists’ Association. She has served as a Delegate to ADHA as RIDHA President as well as Delegate to ADHA as NPDHA President and truly has a passion for serving as a Delegate in a year round position. She is eager to network with other Delegates around the country throughout the year as well as at ADHA Annual Session. She looks forward to representing RDH's from South Carolina in her position of Junior Delegate for SCDHA on a national level.

In her spare time Daiphin enjoys traveling, cooking, reading and spending time with her husband Steve and her beagle/basset hound puppy Addy.

Junior Delegate

Tammi Byrd, RDH


Tammi Byrd has been a practicing dental hygienist for almost forty years, having worked clinically in pediatric dentistry, family practice and periodontics and for the past seventeen years as the CEO/Clinical Director for Health Promotion Specialists, a school-based dental prevention program that provides services across the state of South Carolina. Byrd actively participates in the monitoring and development of government statute, regulations, and policies as they relate to small business, dentistry, and the practice of dental hygiene. She is a two-time past president of the South Carolina Dental Hygienists’ Association and past president of the American Dental Hygienists’ Association. She served as one of the two United States Delegates to the International Federation of Dental Hygienists for 12 years. Mrs. Byrd has contributed numerous articles to national publications. Her awards and recognition include 1997 and 2000 recipient of the SC Dental Hygienist of the Year Award, 2000 recipient of the ADHA Distinguished Service Award, the 2001 recipient of the
SC American Association of University Women, Women of Distinction Award, and the 2007 recipient of the Johnson & Johnson Award of Excellence in Dental Hygiene.

Ashley Wicker, RDH

Lexington, SC


Ashley graduated from Midlands Technical College in 2003 with an Associates in Health Science in Dental Hygiene.  She is a native of Lexington, SC and currently works in her hometown at Lexington Family Smiles. Dental Hygiene is truly her passion and she hopes to one day work exclusively with the underserved residents in SC caring for them and their teeth.

Ashley served as president for the Greater Columbia Dental Hygiene Alliance for two years prior to being elected editor of the South Carolina Dental Hygiene Association. She loves being involved with a group of likeminded hygienists that truly care about the future of dental hygiene.

Ashley loves being outdoors and spending time with her husband and daughter.  She is working on learning how to speak Spanish.