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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What astringent can be applied to a retraction cord to control bleeding?

Alcohol
Hemodent
Saltwater
Hydrogen Peroxide

The correct answer is: Hemodent

Astringent substances are those that cause tissues to contract, which can be useful in controlling bleeding. Alcohol can be a too harsh on tissues and could potentially impair healing. Saltwater does not have astringent properties and may not be effective in controlling bleeding. Hydrogen peroxide can be damaging to tissues and is not recommended for use on retraction cords. Hemodent, on the other hand, is specifically designed for use in dentistry and contains astringents that make it a more suitable option for controlling bleeding when used on retraction cords.