Dental Assistant - Registered Fees: Application: $120 Practical Examination: $60 Written Examination: $43 Law and Ethics Written Examination: $38.50 Examination Frequency: Four times a year. Exam Locations: Statewide (Contact Dental Board for locations). Experience Requirement: Graduation from a Board-approved dental assistant program or 15 months on-the-job training as a dental assistant for a licensed dentist. Completion of approved courses in Radiation Safety, Coronal Polishing, 8-hour Infection Control course, 2-hour Dental Practice Act course, Current American Heart Association or American Red Cross Basic Life Support course. Average Time to Process Application: 30 days. Renewal Period: Biennially (every second year). Comments: All dentists utilizing a dental assistant must post the duties and functions of a dental assistant as allowed by the Board. (California Code of Regulations, Section 1068). Authority: Business and Professions Code, Section 1752. California Code of Regulations, Title 16, Chapter 3, Article 3.