| Abbreviation | Definition |
|---|---|
| HAED | Hellenic Academy of Esthetic Dentistry |
| HAGD | Houston Academy of General Dentistry |
| HAMDS | Hellenic American Medical Dental Society |
| HCDSB | Hospital and Community Dental Services Branch |
| HCMD | Hamdard College of Medicine and Dentistry |
| HDA | Hawaii Dental Association |
| HDA | Hispanic Dental Association |
| HDA | Holistic Dental Association |
| HDAS | Houston Dental Assistant School |
| HDCH | Hitkarini Dental College and Hospital |
| HDS | Hawaii Dental Service |
| HKD | Healthy Kids Dental |
| HRDP | Hamilton Road Dental Practice |
| HSDA | Hawaii School of Dental Arts |
| HSDA | Hispanic Student Dental Association |
| HSDO | Healthy Smiles Dental Office |
| IAAD | International Academy for Adhesive Dentistry |
| IAAD | International Association of Aerospace Dentistry |
| IAAD | Irish Academy of Aesthetic Dentistry |
| IACD | International Academy of Contemporary Dentistry |