The short answer
Not every wisdom tooth (Weisheitszahn) has to go. Removing all four as a matter of routine, simply because they exist, is no longer how the decision is made in Germany — each tooth is assessed on its own findings. There are clear reasons to remove: repeated inflammation around the tooth, decay in the wisdom tooth or in the healthy neighbour it presses against, damage to that neighbour’s root, a cyst forming around an unerupted tooth, or a tooth that stands in the way of planned orthodontic or prosthetic treatment. There are equally clear reasons to leave a tooth alone: it is fully erupted, upright, has a partner to bite against, can be cleaned, and has never caused trouble. Between those two groups sits a grey zone, and that is where a proper conversation — not a rule of thumb — decides the outcome. What tips it is usually the finding, your age, and how realistically the tooth can be kept clean.
Reasons to remove it
What justifies monitoring
Where "take all four out" came from — and what changed
For decades, removing symptom-free wisdom teeth in the late teens was close to standard practice in many countries. The reasoning was preventive: get them out while healing is quick, before problems arrive.
That approach has been steadily narrowed. German professional bodies and international guidance now favour treating each tooth on the evidence rather than on the calendar, because an operation always carries its own small burden — swelling, a few days out of action, and, in the lower jaw, proximity to the nerve. Removing a tooth that would never have caused trouble means accepting that burden for nothing. Leaving a tooth that is quietly damaging its neighbour means paying a larger bill later.
Both errors are real. The reason your dentist asks about your history and looks at an X-ray rather than simply counting teeth is that the honest answer genuinely differs from person to person.
The clear reasons to remove
Each of these is a finding, not a feeling — which is why they are usually visible on an X-ray or in your record before they are dramatic in your mouth.
Repeated inflammation around the tooth. A partially erupted tooth sits under a flap of gum that no brush reaches. The result is recurring pericoronitis (Dentitio difficilis in German letters): swelling behind the last molar, pain on swallowing, a bad taste, sometimes restricted mouth opening. One episode may be treated conservatively. A pattern of episodes is a reason to remove the cause.
Decay in the wisdom tooth, or in its neighbour. The niche between an angled wisdom tooth and the second molar is a classic site for decay, and the damage often lands on the neighbour — a tooth that is genuinely useful for chewing. Losing a second molar to protect a wisdom tooth is a poor trade.
Damage to the neighbouring root. A tooth pressing directly against the root of the molar in front can cause resorption — the root is slowly eaten away. This is usually silent and shows up on imaging.
A cyst or an enlarging follicle. The sac around an unerupted tooth can develop into a cyst that expands in the bone without symptoms. This is one of the strongest arguments for looking at wisdom teeth on an X-ray occasionally, even when nothing hurts: Can a dental cyst become dangerous? An honest assessment.
The tooth is not restorable, deeply decayed or fractured, and repairing it would be disproportionate for a tooth in that position.
It obstructs planned treatment — an orthodontic movement, a denture (Prothese), a bridge or an implant plan that needs the space.
A tooth with no opposing partner that keeps erupting. Without a tooth to bite against, an upper wisdom tooth can grow downwards over the years until it traumatises the gum opposite or blocks the bite.
Before certain medical treatments. Where radiotherapy to the head and neck region or antiresorptive medication (for example bisphosphonates) is planned, doubtful teeth are often dealt with beforehand. Your oncologist or specialist and your dentist should be talking to each other — bring the letters.
When they are allowed to stay
The list here is shorter but it applies to a great many people.
A fully erupted, upright, functioning tooth. It has broken through completely, stands more or less in line, bites against a tooth in the opposite jaw, and you can get a brush around it. That is a working tooth, not a liability.
A tooth with no findings that you can genuinely clean. The honest test is not whether you intend to clean it, but whether you can reach it. If you cannot open wide enough to get a brush behind the second molar, “cleanable” is theoretical.
A deeply buried, fully bony tooth with no pathology, particularly in an older patient. A tooth entirely enclosed in bone, with an intact follicle, no cyst, no contact with the mouth and no symptoms, may pose less risk where it is than the operation to remove it would. In that case, monitoring is a legitimate plan, not laziness.
A tooth that may still be useful. Occasionally a wisdom tooth can serve as an anchor for a bridge, or replace a second molar that has been lost. Removing everything on principle throws that option away.
The grey zone: how the decision is really made
Most patients are neither obvious cases. Five questions carry most of the weight.
How many episodes have there been, and how bad? A single mild flare-up at 19 is different from three courses of antibiotics in two years.
Can it be kept clean in practice? Position, your mouth opening, and how easily you get to a dentist all count.
What does the X-ray show about the neighbour? Early damage to the second molar changes the calculation more than the wisdom tooth itself does.
How close is the nerve canal, and how old are you? Both influence the burden of the operation. Roots are less fully formed and healing is faster in the late teens and early twenties; bone is denser later. This makes timing part of the decision — but age alone has never been an indication for surgery.
What does your life look like in the next few years? This is the question most often left out and the one expats should raise. If you are about to spend two years somewhere with limited dental access, or you are planning a pregnancy, or a long posting is coming up, a borderline tooth is better dealt with in a planned way than as an emergency far from home.
If the answer is “keep it for now”, that is a decision with a follow-up attached, not a shrug. Whether all four need the same answer is a separate question, and usually they do not: Do all four wisdom teeth have to come out? Why every tooth counts individually.
What monitoring looks like if they stay
Keeping a wisdom tooth means keeping an eye on it, and the plan is simple.
Regular check-ups. The tooth is inspected along with everything else; changes in the gum around it are the first sign of trouble.
Imaging when there is a reason. X-ray intervals are set individually, on the basis of the finding and your history rather than a fixed calendar — Germany’s radiation protection rules require an indication for every image, which is why nobody should be scanning your jaw annually out of habit.
Cleaning that reaches the back. A small interdental brush or a short-headed brush angled behind the second molar does more than any rinse. Ask to be shown once with a mirror; almost everyone is surprised where they have been missing.
Knowing the early signals, which is where the next section comes in.
What is normal — and when to have a wisdom tooth looked at
Normal, and no cause for alarm
- Mild pressure or tenderness while a tooth is erupting, easing over days
- Slight gum soreness behind the last molar that settles with careful cleaning
- Occasional food catching behind the last tooth, resolved by cleaning it out
Make an appointment in the next few days
- Swelling or tenderness of the gum flap that keeps returning
- A recurring bad taste or bad breath coming from the back of the mouth
- Pain when biting on that side, or when swallowing
- A tooth that has begun to appear crooked or is visibly pressing on its neighbour
The same day, or the out-of-hours service
- Swelling of the cheek or under the jaw that is spreading
- Fever together with swelling in the mouth
- Difficulty swallowing, difficulty breathing, or being unable to open your mouth more than a fingerbreadth
- Severe pain that painkillers are not touching
Those last four belong to the group where waiting is the wrong choice. We are open Monday to Friday 07:30–19:30 and Saturday 08:00–18:00; outside those hours the regional out-of-hours dental service (Notdienst) covers acute problems, and knowing that number before you need it is worth two minutes now.
Costs and insurance, briefly
This article is about the decision rather than the invoice, and the money question has its own page: Does statutory health insurance cover wisdom tooth surgery?. The short version: in the German system a removal that is medically indicated is generally handled as a statutory benefit, while additional services — sedation or laughing gas, or imaging that goes beyond what is strictly required — are typically billed privately. What you should insist on is the split in writing before the appointment, not a verbal reassurance at the door. In our practice the first consultation is free, and a 3D X-ray (DVT), where the finding calls for one, costs 178 €.
Special situations
You wear aligners or fixed braces. The sequence is a joint decision with your orthodontist; sometimes space is needed first, sometimes removal fits better after a phase of treatment.
You are pregnant. Planned removals are normally scheduled around the pregnancy. An acute inflammation is treated on its merits and should not be endured — tell whoever you see that you are pregnant, and how many weeks.
You take blood thinners or antiresorptive medication. Bring the names and doses. This changes the planning, and it is not something to sort out on the day.
You are new to Germany, or your German is limited. Wisdom teeth are exactly the topic where a language barrier turns a routine decision into anxiety, because the whole conversation is about weighing up options. We work in English alongside German, Russian, Turkish, Ukrainian, Arabic, Kurdish and French, and patients come to us from Düsseldorf, Cologne, Bonn and Bochum — 20 to 30 minutes is a normal journey for an appointment you can actually follow. English-Speaking Dentist in NRW
This is the most persistent belief about wisdom teeth, and the evidence behind it is weak. Lower front teeth tend to crowd with age in people who never had wisdom teeth at all, and removing them does not reliably prevent it. Crowding on its own is therefore not treated as a reason to operate. If your teeth have shifted after orthodontic treatment, the usual explanation is retention — the retainer — rather than the tooth at the back.
Yes, but checking is not the same as removing. The two findings that matter most — decay on the back of the second molar and a cyst forming around an unerupted tooth — are typically silent and visible only on an X-ray. That is the argument for a look at sensible intervals, and equally the argument against operating on something that has never caused trouble.
There is no cut-off age, but the balance shifts. Removal in the late teens and early twenties is usually simpler and heals faster; later, bone is denser and recovery slower. That means a genuinely indicated tooth is better not postponed for years — and equally that a silent, deeply buried tooth found on a scan at 55 is often a candidate for monitoring rather than surgery.
Usually nothing dramatic for a while, which is exactly why people leave it. The typical course is repeated flare-ups at inconvenient moments and, in the background, decay working into the neighbouring molar. The point is not to alarm you: it is that the cost of waiting is generally paid by the healthy tooth in front, and that tooth is worth more than the one behind it.
Raise it explicitly, because it genuinely shifts a borderline decision. A planned removal here, with the follow-up appointment in the diary, is a far better experience than an acute flare-up in a country where you do not know the system or the language. It is a legitimate factor and no dentist will think it odd that you brought it up.
The modern answer to “when do wisdom teeth have to come out” is disappointing to anyone hoping for a rule: when there is a reason. A tooth causing repeated inflammation, decaying, damaging its neighbour, forming a cyst or blocking planned treatment has earned its removal. A tooth that is upright, functional, cleanable and quiet has not. Everything in between is a conversation about your findings, your age, your ability to reach the tooth with a brush and what your next few years look like. Ask to see the X-ray, ask which of those two groups your tooth is in, and ask what the plan is if the answer today is “leave it”. How such a removal is actually carried out, when it comes to that, is described here: Impacted or angled wisdom teeth: what your X-ray means, and our surgical services here: Oral surgery – service page (EN).
Zahnarztpraxis Tsypin · Wuppertal. This article was medically reviewed and is provided for information; it does not replace an examination. Updated August 2026.
