California Registered Dental Assistant (RDA) Written Practice Exam

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Prepare effectively for the California Registered Dental Assistant (RDA) Written Exam. Utilize our comprehensive quizzes and resources, featuring multiple-choice questions that enhance your understanding and readiness for the exam!

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What is used during a crown and bridge preparation to displace gingival tissue?

Gingival retraction cord
Dental floss
Mouthwash
Toothbrush

The correct answer is: Gingival retraction cord

Gingival retraction cord is used during a crown and bridge preparation to displace the gingival tissue. This is done to increase the visibility and accessibility of the tooth structure being worked on. Dental floss, mouthwash, and a toothbrush are not suitable for this purpose as they do not have the same effect of gently pushing the gingival tissue away from the tooth. It is important to use the correct tools and methods during a crown and bridge preparation to ensure a successful treatment.