Dental negligence time limits: how long do I have?
Limitation is the deadline that ends claims outright. Here is how it is counted.
Three years, but from when?
The general rule is three years from the date of the negligent treatment, or three years from the date you first knew — or reasonably should have known — that your injury was linked to that treatment. That second date is the one that matters in dental cases, because harm is often invisible for years: a failed root canal sealed under a crown, or bone loss progressing silently. Courts have a discretion to extend the period, but it is exercised sparingly and should never be relied on.
FAQs
Frequently asked questions
Generally three years from the date of treatment, or three years from the date you first realised the harm was connected to that treatment — whichever is later.
It is the point at which you first knew, or could reasonably have been expected to know, that you had a significant injury and that it was attributable to the treatment. Often this is when a second dentist tells you something was done wrong.
The clock may run from the date of knowledge rather than the treatment. This is common where a problem was hidden — for example a root canal that failed under a crown and only became apparent when infection developed.
Yes. Time does not begin running until a child turns 18, so a claim can be brought at any point up to their 21st birthday regardless of when the treatment happened.
Where a person lacks the capacity to conduct legal proceedings, the limitation period does not run at all for as long as that remains the case.
A court has a discretion under section 33 of the Limitation Act to allow a late claim, weighing the reasons for delay and whether a fair trial is still possible. It is granted infrequently and is not something to plan around.
The claim becomes statute-barred and the defendant can defeat it on that ground alone, however strong the underlying case. This is why early advice matters far more than a perfect set of documents.