California Registered Dental Assistant (RDA) Written Practice Exam

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Which oral habits can affect the choice of a removable prosthesis?

  1. Eating Hard Foods

  2. Tongue Thrusting

  3. Clenching, Grinding, Mouth Breathing

  4. Sipping Hot Beverages

The correct answer is: Clenching, Grinding, Mouth Breathing

Oral habits that can affect the choice of a removable prosthesis include clenching, grinding, and mouth breathing, as these can cause excessive force and movement in the mouth, potentially damaging the prosthesis or causing discomfort for the wearer. Eating hard foods and tongue thrusting may also impact the prosthesis, but to a lesser extent. Sipping hot beverages, however, would not have a significant effect on a removable prosthesis.

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