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HOME ABOUT EVENTS MEMBERSHIP RESOURCES ADVOCACY CONTACT US More Join the only professional organization advocating for Dental Hygienists in the state of Georgia. Georgia Dental Hygienists39 Association The GDHA is an affiliate of the American Dental Hygienists39 Association ADHA and is the only association to unite support and empower Georgia Dental Hygienists and that is OUR MISSION and OUR VISION. The GDHA is the only professional organization advocating for Dental Hygienists in the state of Georgia and is your onestop resource for all matters Dental Hygiene. GDHA 20232024 Board of Chairmen Important Information GDHA is proud to offer certification in the GDHA Board of Dentistry approved course LOCAL ANESTHESIA FOR DENTAL HYGIENISTS Georgia Board of Dentistry Rule 1505.