California Registered Dental Assistant (RDA) Written Test 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

The process of removing decay is known as

Tooth extraction

Root canal

Cavity preparation

Cavity preparation is the process of removing decay from a tooth. Unlike tooth extraction, which involves removing the entire tooth, cavity preparation only removes the decayed portion and preserves the natural tooth. Root canal is a procedure used to treat infected or damaged nerves inside the tooth, not for removing decay. Scaling is a process used to remove plaque and tartar from the outer surfaces of the teeth, not specifically for decay. Therefore, the best answer is cavity preparation.

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Scaling

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