California Registered Dental Assistant (RDA) Written Practice Exam

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Toward which direction should the polishing stroke be directed?

  1. Toward the gingiva

  2. Away from the gingiva

  3. Towards the incisal and toward the occlusal

  4. In a circular motion

The correct answer is: Towards the incisal and toward the occlusal

The polishing stroke should be directed towards the incisal and toward the occlusal aspect of the tooth. This helps to evenly distribute the polishing agent and removes any potential product excess. Directing the stroke towards the gingiva or in a circular motion can cause damage or irritation to the gingiva and uneven polishing of the tooth surface. Hence, options A and D are incorrect. Option B, directing the stroke away from the gingiva, can also cause damage to the soft tissue and is not the recommended direction for polishing.

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