Few dental treatments have a worse reputation than the root canal. Mention one and people wince. But that reputation is largely a hangover from decades past, and it puts people off a treatment that is often the thing standing between them and losing a tooth. Let's clear up what's actually true.
Myth: root canals are agonising
This is the big one. The pain people associate with root canals is really the pain of the infected or inflamed tooth that leads to needing one in the first place. The treatment itself is done under local anaesthetic, so it's typically no more uncomfortable than having a filling. In fact, a root canal relieves the pain that brought you in, that's the whole point of it.
What a root canal actually does
Inside each tooth is a soft tissue called the pulp, containing nerves and blood vessels. When decay or a crack lets bacteria reach the pulp, it becomes infected and inflamed, which is what causes that deep, throbbing ache. A root canal removes the infected pulp, cleans and disinfects the inside of the tooth, and seals it. The tooth stays in place; only the damaged inner tissue is removed.
Myth: it's better to just pull the tooth
Extraction can seem simpler, but keeping your natural tooth is almost always the better outcome where it's possible. Natural teeth function better than replacements, and losing one can lead to neighbouring teeth shifting and bone changes over time. Replacing an extracted tooth with an implant or bridge is also typically more involved and more costly than saving it. A root canal is often the more conservative, tooth-preserving choice.
What to expect afterwards
After a root canal, the tooth may feel a little tender for a few days, which usually settles with ordinary pain relief. Because a treated tooth can become more brittle, a crown is often recommended afterwards to protect it, particularly for back teeth that do a lot of chewing. Once restored, a root-canal-treated tooth can last for many years.
The real takeaway
If your dentist has suggested a root canal, it's worth knowing that the modern version of this treatment is routine, done comfortably under anaesthetic, and aimed at saving a tooth you'd otherwise lose. The dread is understandable given the reputation, but the reality is far less dramatic than the stories.