Root canal treatment is a dental procedure performed to extract infected tooth material and relieve tooth pain. Root canals contain blood vessels and nerves. When these things become infected, you would need a root canal procedure to alleviate toothache. But how do you know if you need a root canal? Different signs lead to an infected tooth. And knowing the symptoms will help to see if you need a root canal treatment. If you suspect that your tooth is infected, the Macquarie Dental clinic performs root canals regularly.