Exam Domains

1 Infection Control (OSHA/CDC) Weight not published

2 Chairside Assisting Weight not published

3 Radiation Safety and Exposure Weight not published

4 Patient and Dental Professional Relations Weight not published

5 Supportive Dental Care (RHS, ICE, CDA components) Weight not published

Exam Details

Question TypesMultiple Choice

FormatLinear (fixed-form, computer-based)

Online ProctoringNot available

ID RequirementsGovernment-issued photo ID with photo and signature required. Name on ID must match registration exactly.

RenewalRequired -- CDA certification is valid for 2 years. Renewal requires 12 continuing education (CE) hours per 2-year cycle. CE hours must be completed through DANB-approved providers. Renewal applications submitted through the DANB online portal.

PrerequisitesVaries by state; most require completion of an accredited dental assisting program or equivalent work experience (recommended)

Retake Policy90-day waiting period between failed attempts. No stated limit on total attempts. Each retake requires a new exam registration fee.

Registered Dental Assistant (RDA) Exam (RDA) Exam Blueprint

Exam Domains

Exam Details

Official Study Resources