Here is a clear paragraph about **RCT (Root Canal Treatment)**: Root canal treatment (RCT) is a dental procedure used to remove infection from inside a tooth and save it from extraction. The treatment involves cleaning out the infected pulp, which contains nerves and blood vessels, and then disinfecting and sealing the tooth. RCT helps relieve tooth pain, stop the spread of infection, and restore normal chewing function. With proper restoration such as a crown and good oral care, a tooth treated with RCT can last for many years.