Not sure whether you need a root canal, crown, or filling? This guide explains the key differences between these common dental treatments in simple terms. Learn when each option is recommended, how they work, and what problems they solve—from minor cavities to severe tooth damage or infection. We also cover costs, durability, and what to expect during each procedure. Whether you're dealing with tooth pain or planning treatment, this article helps you make an informed decision about the best option for your dental health and long-term smile.