California Registered Dental Assistant (RDA) Written Practice Exam

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Master the California Registered Dental Assistant (RDA) Written Exam with our comprehensive practice quiz. Tailored to mimic real exam conditions, it's your key to unlocking success and advancing your dental assisting career.

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Who can perform a dental prophylaxis?

Dentist and dental hygienist
Only a dentist
Dental assistant
Periodontist

The correct answer is: Dentist and dental hygienist

A dental prophylaxis is a routine dental procedure that involves cleaning the teeth and gums to prevent tooth decay and gum disease. This procedure can be performed by both a dentist and a dental hygienist. Dentists and dental hygienists have the necessary education and training to properly perform this procedure. B, C, and D are incorrect options because a dental assistant does not typically have the education or training to perform a dental prophylaxis, and a periodontist specializes in the treatment of periodontal disease and may not perform routine cleanings.