Implant Problems

Numbness that will not go away after a dental implant: when should you worry?

Telling ordinary anaesthetic numbness apart from a sign that the implant sits close to the nerve

The numbness you feel in your lip and chin as you leave the procedure is usually just the effect of the anaesthetic, and it clears by itself within a few hours. Numbness that is still there the next morning, especially in the lower lip and chin, can point to something different: the implant sitting closer than expected to the nerve that carries sensation to your lip and chin. Below we explain how to tell the two apart, when and why you need to tell the clinic straight away, what the clinic checks, and how healing actually tends to go. We also tell you plainly what we cannot promise.

Short answer

Numbness in the first hours after the procedure is the effect of the anaesthetic and clears by itself. Numbness that is still there the next day, especially in the lower lip and chin, can be a sign that the implant sits close to the nerve that carries sensation there; tell the clinic that same day. The clinic's first step is to look again at the CBCT scan and measure the distance between the implant and the nerve canal. Most nerve involvement improves over time, but this is not a guarantee, and the chance of recovery depends closely on how early it is reported.

Anaesthetic numbness: Clears by itself within a few hours
When to tell us: Lip or chin numbness still there the next day
The clinic's first check: CBCT scan distance between implant and nerve
Window for early treatment: The first few months; it narrows the longer you wait

The difference between anaesthetic numbness and nerve involvement

In the lower jaw, the nerve that carries sensation to the lip, chin and gum runs through a narrow canal inside the bone: the inferior alveolar nerve canal. If an implant is to be placed close to this canal, the surgeon's most reliable guide is not the resistance felt during surgery but the 3D CBCT scan taken beforehand. Exactly where the canal lies cannot be seen with the eye; it is worked out to the millimetre.

The numbness you feel right after the procedure is most likely not a sign of this at all, only the effect of the anaesthetic you were given. Once injected, it can stay active for hours; it leaves a widespread numbness in the lip, tongue and cheek that feels strange and uncomfortable, but is expected. Anaesthetic numbness is not confined to the treated spot; it spreads over a wide area on that side and resolves by itself towards the evening or by the next morning.

The picture that is different is this: if the numbness is still there when you wake the next morning, if it is concentrated in the lower lip and chin, and if there is a clear difference compared with the other side, this is a sign that the nerve may have been affected by the implant. In some patients this feeling is not full numbness but tingling, a burning sensation, or touch that feels odd. What sets it apart is not how strong it is but how long it lasts and where it sits.

How often this happens is directly related to how close the implant comes to the nerve canal. A systematic review on the subject shows that when the distance between implant and canal falls below one millimetre, the rate of altered sensation rises markedly, while at a distance of two millimetres no such disturbance was found in the cases reviewed. This gap of just a few millimetres explains why planning is done so carefully.

The same review also shows why reporting it early matters so much. In cases where the implant was thought to be pressing on the nerve and was removed, sensation improved markedly when this was done within the first three months; removals carried out after four months did not show the same improvement. The cost of a delayed report can be measured in a difference of just a few weeks.

When you report it, the clinic's first step is to look at the imaging again: how far apart the implant and nerve canal are, whether there is contact with the canal, and whether there is pressure on it. A simple sensory examination is added to this; touch and pinprick sensation are assessed by comparing the two sides. The decision then depends on the findings: in some cases you are monitored and reviewed, while if the implant is thought to be genuinely pressing on the nerve, removing it or changing its position is considered.

As for the general course of recovery, most patients in the same review who had temporary altered sensation regained their normal feeling within six months, and almost all of them within a year. But that is a statistic, not a personal promise. In cases where the canal was genuinely entered, or where pressure was sustained for a long time, recovery is more variable and sometimes permanent. No dentist can promise zero risk; what one can offer is planning that keeps the risk as low as possible, and acting quickly when it is caught early.

Which picture tends to go well, and which needs attention

The distinction below is not a firm diagnosis; it is a framework for knowing when you can relax and when you need to call the same day. The firm decision only becomes clear after an examination and imaging.

The tooth can be saved

The numbness only lasts on the day of the procedureNumbness felt in the lip, tongue and cheek that fades by the evening or by the next morning is the anaesthetic doing what is expected. You do not need to call about this, but there is one question to check the next morning: can you still feel it?
Sensation is reduced but not completely goneIf you can feel touch but it is not as clear as before, this may point to a milder picture, and in most reported cases it improves markedly over time.
There is tingling rather than full numbnessThis is a finding that shows the nerve was not completely severed, but was affected. You still need to report it; being mild does not mean it needs no follow-up.
You reported it earlyIf you noticed it and told us in the first few days or weeks, you have the widest possible window for assessment and, if needed, treatment.

Saving it is unlikely to hold

The numbness is complete, with a sharp edgeComplete loss of feeling that ends in a clear line across half the lip or chin can point to more marked nerve involvement. Report it the same day.
Weeks have passed with no changeWeeks passing without even a slight improvement is a sign that waiting is not the right approach. Early assessment keeps your options open.
Numbness has given way to burning or painThis can be a different picture, and it should be assessed without delay.
It comes with trouble speaking or controlling salivaThis is not a usual finding from an implant; another cause needs to be investigated, so come in without delay.

How the clinic proceeds once you report it

The sequence below describes the assessment steps followed once you report numbness.

1
Tell us when it started and where it is
Telling us whether you noticed the numbness on the night of the procedure or the next day, whether it affects the lip, chin or tongue, and whether it is one-sided speeds up the assessment.
2
The imaging is reassessed
The distance between the implant and the nerve canal, and whether there is contact with the canal, is examined again on the CBCT scan already taken. Further imaging is requested if needed.
3
A sensory examination is carried out
Touch, pinprick sensation and the ability to tell hot from cold are tested, comparing the two sides. This examination sets a baseline for measuring improvement at later check-ups.
4
The decision is made on the findings
If there is no clear pressure, monitoring with regular check-ups is recommended. If the implant is thought to be genuinely pressing on the nerve, removing it or changing its position is considered; this decision is made together with you, bearing in mind that time matters.
5
You are given a written check-up schedule
How often you will be reassessed, what to watch for and what to report is given to you in writing; spoken instructions get forgotten over time.

Routes that can be followed if nerve involvement is confirmed

Which one is right depends on the findings; the options below do not replace one another and can be used in sequence or together.

Monitoring and regular check-ups

If the pressure is mild or unclear, you are followed up with sensory examinations at set intervals. This is the route chosen for most mild cases, because the nerve can repair itself over time.

An anti-inflammatory approach

Medication aimed at reducing swelling in the tissue around the nerve is considered in some cases; the decision is made by the dentist who placed the implant, so do not add medicine on your own.

Repositioning or removing the implant

If the implant itself is the source of the pressure and the time window is still open, this step is considered. The chance of recovery is markedly higher when it is done early.

Referral for further assessment

In cases that last a long time or are more severe, you may be referred to an oral and maxillofacial surgeon or to a centre experienced with nerve injuries.

The honest facts you need to know

We are not writing these to frighten you, but so that you are prepared.

It is rare, but not zero

Altered sensation can occur with implants placed close to the nerve; the most important factor deciding the rate is the distance between implant and canal. No dentist can bring this risk to zero, only reduce it.

It can be permanent

Most cases improve over time, but some do not. A dentist who does not tell you this from the start is not doing you any favours.

A delayed report narrows your options

Cases spotted and assessed early do not have the same outcome as cases noticed months later. Even a slight suspicion should be reported without waiting.

The picture can be more complex when many implants are placed in the same session

In a full-mouth plan, several implants are placed in the same session; working out exactly which one the numbness is coming from needs imaging and examination.

How recovery actually tends to go

The course below is a general framework for cases where work was close to the nerve and involvement was reported. It does not move at the same pace for everyone.

The first day
Anaesthetic numbness fades by the evening or by the next morning. If numbness is still there at that point, call the clinic.
The first week
If you have reported it, the imaging is reassessed and a sensory examination carried out during this period. In mild cases, partial improvement can be noticed even within this week.
The first few months
If early treatment is needed, it is carried out within this window. Most temporary altered sensation starts to improve markedly within these months.
Six months and beyond
Most temporary cases regain their normal feeling within this time; some take up to a year. If the picture has not changed, we discuss whether it is permanent and plan accordingly.

Message us right away if

Numbness still there the next day. If it has lasted longer than the anaesthetic should, tell us even if it is mild.
Sharp-edged loss of feeling in the lip or chin. Do not wait if there is a clear difference compared with the other side.
Numbness replaced by burning or pain. This can be a sign of a different picture and needs assessment.
No change at all after several weeks. Rather than watching an unchanging picture, ask us for further imaging.

What decides the cost here

We do not give figures on this page; the price is only given, item by item and in writing, after your examination and CBCT scan. But it helps to know which items affect the budget on this side:

The scope of the planning: The CBCT scan and digital planning are a fixed part of the process regardless of how many implants are placed; do not trust a cheap quote that skips this step.
Whether further assessment is needed: If numbness is reported, further imaging and check-up appointments may be needed. Ask in writing from the outset which of these are included in the price.
Referral for further assessment: If referral to a specialist is rarely needed, that is a separate assessment and a separate cost item.
How often you are followed up: Following up reported numbness may need more frequent visits than the normal check-up schedule.

Frequently asked questions

My lip is numb right after the procedure, is that normal?

Yes. The anaesthetic given to the area during the procedure leaves widespread numbness in the lip, tongue and cheek. This feeling clears by itself towards the evening or by the next morning. What should concern you is not this first numbness, but whether it is still there the next day.

What should I do if I am still numb the next morning?

Call the clinic that same day. Reporting it early keeps the widest possible window open for assessment and, if needed, treatment; waiting narrows that window.

Can this be permanent?

In most cases, no, but no one can guarantee this from the start. Most reported cases of altered sensation improve markedly over time; in a small number, the improvement stays limited or becomes permanent. What decides the outcome is how close the implant is to the nerve and how early it is reported.

Does the CBCT scan prevent this completely?

It reduces the risk considerably, but not to zero. The CBCT scan shows the position of the nerve canal to the millimetre, and the implant is planned accordingly; but not every structure inside the bone shows up with exactly the same clarity on the scan. This is why involvement can rarely still occur even with careful planning.

Can I still get fixed teeth on my implant while I have numbness?

Yes. Numbness on its own does not stop your final fixed teeth being fitted; the two are separate matters. But you still need to report the numbness, and it is followed up alongside the rest of your treatment.

Should I report tingling as well?

Yes. Tingling can show that the nerve was not fully severed but was affected; even though it is less obvious than numbness, it needs to be reported with the same seriousness.

What should I do if the numbness continues after I have flown home?

Call the clinic and describe the situation; because we already have your images, we can also assess it remotely. If you need to be examined by a local dentist or a neurologist, we will discuss that together too.

Sources

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