California Registered Dental Assistant (RDA) Written Practice Exam

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Obturate means to

  1. Extract a tooth

  2. Remove decay

  3. Fill a pulpal canal

  4. Clean a cavity

The correct answer is: Fill a pulpal canal

Obturate means to fill a pulpal canal. It is a term used in endodontics to describe the process of filling and sealing the root canal of a tooth after being treated for infection or decay. Option A, extracting a tooth, is incorrect as this term specifically refers to removing a tooth from the mouth. Option B, removing decay, is incorrect as obturation is the process of filling and sealing the root canal, not removing decay. Option D, cleaning a cavity, is also incorrect as obturation involves filling and sealing the root canal, which is a different process than cleaning a cavity.

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