Ace the California RDA Written Exam 2026 – Drill, Fill, and Thrill Your Way to Success!

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.