can a wisdom tooth be filled instead of removed

Patients are often surprised when a dentist suggests filling a wisdom tooth, and equally surprised when another dentist advises removing one with "just a small cavity". Both can be right. The decision depends less on the cavity and more on the tooth it is in.

When filling makes sense

• The tooth is fully erupted and upright, so the dentist can see and isolate it properly. A filling needs a dry, accessible surface to bond well.
• It has a partner to bite against. A wisdom tooth that chews is doing real work, and keeping it may also be useful later, for example as support for a bridge if a neighbouring molar is lost.
• The decay is small or moderate and on a surface the dentist can reach, usually the biting surface.
• You can clean it. If your brush reaches it and the gum around it is healthy, the filling has a good chance of lasting.

In these cases a tooth-coloured composite filling is a sensible, conservative choice. Our current published fee for a composite filling starts from ₹3,500, depending on the size and surfaces involved, and is confirmed after examination; see our online store.

When filling is a poor idea

• Partly erupted or tilted teeth. A cavity under a gum flap, or on the side jammed against the next molar, cannot be prepared and sealed properly. The filling is likely to leak and decay will return.
• No opposing tooth. A tooth that does nothing when you chew tends to over-erupt (drift out of the gum) and collect food. Spending on it rarely makes sense.
• Decay reaching the pulp (the nerve and blood supply inside the tooth). Root canal treatment on wisdom teeth is possible, but they often have curved or unusual roots and are hard to reach at the very back. It is worth doing only when the tooth is truly valuable, such as when it is the main chewing tooth on that side.
• Repeated gum infection around it (pericoronitis). Filling the cavity does nothing for the gum problem.
• Decay is also present on the second molar because of the wisdom tooth's position. Saving the second molar usually comes first, and that often means removing the wisdom tooth.

Questions to ask your dentist

• Is this tooth doing useful chewing work?
• Can the cavity be fully reached and kept dry while filling?
• How close is the decay to the nerve on the X-ray?
• Is the tooth in front healthy, or being harmed?
• If I fill it now, what is the realistic chance I will need it out in a few years anyway?

The cost comparison, honestly

A filling may look cheaper than removal on the day. But if a wisdom tooth needs a filling now and is likely to need removal later, you will pay for both. On the other hand, removing a healthy, useful molar because of a small, reachable cavity is over-treatment. The X-ray and examination settle most of these debates quickly.

How we decide

Your dentist examines the tooth, checks how it bites, and takes a digital X-ray (RVG) to see how deep the decay is and how the roots sit. We then explain both options and the reasons for our recommendation, and you decide in your own time. If removal is the better route, it is planned with our oral and maxillofacial surgery department. See also our page on tooth restoration.