Root Canals and Crowns
What happens if you put off a root canal?
29 August 2026 · The Dentist, Al Qusais, Dubai
The short answer
Putting off a root canal doesn't make the infection go away, it lets it spread further into the bone and surrounding tissue, even if the pain settles for a while. You risk a painful abscess, swelling, bone loss around the tooth, and eventually losing the tooth altogether. The longer you wait, the more complex and costly the fix usually becomes. If you're having tooth pain that comes and goes, or a tooth that's gone quiet after hurting badly, get it checked rather than assuming it's sorted itself out.
Why the pain going away is a warning sign, not good news
When a tooth needs a root canal, the nerve inside is infected or dying. In the early stages that usually means sharp pain with hot or cold, or a dull ache that won't settle with painkillers. A lot of people wait this out, hoping it'll pass.
Here's the problem. If the nerve dies completely, the pain can actually stop, because there's no living tissue left to send pain signals. Patients often tell us they felt relieved when the ache disappeared. But the infection hasn't gone anywhere. It's still sitting in the tooth and starting to work its way into the bone around the root. Quiet doesn't mean healed.
What's happening inside the tooth while you wait
Left untreated, the bacteria in the dead nerve tissue spread through tiny channels at the tip of the root and into the surrounding bone. This forms an abscess, a pocket of infection that the body tries to wall off. You might notice a bump on the gum near the tooth, a bad taste, or swelling in the cheek or jaw that comes and goes.
Bone around the root starts to break down as the infection persists, which is visible on an x-ray as a dark shadow at the root tip. The longer this sits, the more bone is lost, and the harder it becomes to save the tooth even with root canal treatment later. In some cases the infection tracks along the jaw and causes facial swelling that needs urgent attention, sometimes involving antibiotics or drainage before any root canal work can even start.
There's also a knock-on effect on the tooth itself. Weakened, infected teeth are more prone to fracturing, especially if a large filling or old crown is already in place. A crack combined with infection often means extraction is the only realistic option, where a root canal six months earlier would have kept the tooth.
When it stops being a dental problem and becomes a health one
Dental infections don't always stay contained. Untreated abscesses can spread into the floor of the mouth, the neck, or the sinuses depending on which tooth is affected, and in rare cases this becomes a medical emergency. That's uncommon, but it's the reason dentists take a quiet, non-painful swelling seriously rather than telling you to wait and see.
There's a cost dimension too, and we'll be straight about it. A root canal on a tooth caught early is usually more straightforward and cheaper than one where the infection has spread, the bone has been lost, or a crown and possible bone grafting are needed afterwards. Waiting rarely saves money in the long run.
If you've got a tooth that's ached, gone quiet, or you can feel a small lump on the gum nearby, that's worth a proper look rather than a guess. At The Dentist in Al Qusais, the first checkup is free for new patients, and an x-ray will show straight away whether the tooth still has a good chance of being saved with a root canal, or whether the situation has moved on. You'll get a written quote before anything is done, with payment plans available if treatment is needed. Book through WhatsApp or thedentist.ae/book, open Monday to Saturday.
This article is general information, not a diagnosis. If you are in Dubai, the free first checkup at our Al Qusais clinic is the fastest way to get an answer about your own teeth.