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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How long should you wait before separating a model from the impression?

15-30 minutes
40-60 minutes
1-2 hours
Immediately

The correct answer is: 40-60 minutes

After taking an impression of a model, the recommended time to wait before separating the model is 40-60 minutes. This allows the impression to fully set and prevents distortion of the model when it is removed. Option A of 15-30 minutes may not be long enough for the impression to fully set. Option C of 1-2 hours may be too long, and the impression may become difficult to remove. Option D of immediately is not recommended as it may cause distortion of the impression and affect the accuracy of the model.