Your dentist has spotted a wisdom tooth on the X-ray. It doesn't hurt. And yet someone has already told you that you should "get them out before they cause trouble".
So let's be clear from the start: no, not every wisdom tooth needs to come out. A wisdom tooth that has erupted fully, sits in a good position, bites properly against the tooth above it and that you can actually brush is a tooth like any other. It can stay in your mouth for the rest of your life. Removing a healthy tooth because it might one day cause a problem isn't prevention — it's surgery without an indication, with risks that are entirely real.
The real question isn't "should wisdom teeth be removed?" It's "is this one, in your mouth, causing a problem — or clearly heading for one?"
When extraction is genuinely justified
These are concrete reasons, visible on examination and on the X-ray.
The tooth is impacted or only partly through. It has no room to erupt, so it pushes at an angle, sometimes almost horizontally into the tooth in front. It stays trapped under the gum or emerges only halfway.
Repeated gum infections: pericoronitis. This is the most common reason of all. When a wisdom tooth comes through only partially, a flap of gum covers part of the crown. Bacteria settle underneath it, and there is no way for you to clean in there. The result: a red, swollen, painful gum, a bad taste, difficulty opening the mouth. An episode can be calmed down — but if the anatomy doesn't change, it comes back. Repeated episodes are a good reason to extract.
Decay that cannot be properly treated. Right at the back, with poor access and sometimes a tilted tooth, a durable filling isn't always achievable. Repairing a tooth you can neither seal properly nor clean afterwards makes little sense.
The neighbouring tooth is being damaged. This is a strong argument. A wisdom tooth pressing against the second molar can cause decay on a surface no brush can reach, or eat away at the bone and root there. Here you aren't extracting the wisdom tooth for its own sake — you are protecting a tooth you genuinely need to keep.
A cyst or lesion around an unerupted crown. The sac surrounding a tooth left in the bone can turn into a cyst and displace bone. It is uncommon, painless at first, and shows up on an X-ray. That is a clear indication.
Outside these situations, the reasonable approach is watchful monitoring: a check-up and an X-ray at sensible intervals, and action only if something changes.
Worried about a wisdom tooth, or a gum at the back that keeps flaring up? Book an appointment with a dentist on OlamKal: an examination and an X-ray are usually all it takes to know whether the tooth needs to come out — or simply be watched.
What the procedure actually involves
Beforehand. Your dentist examines your mouth and studies an X-ray — this step is not optional. They look at the exact position of the tooth, the shape and direction of its roots and, for lower teeth above all, how close those roots come to the inferior alveolar nerve running through the jaw. If the relationship looks tight, a three-dimensional scan may be requested. This is also when the risks are explained to you. Ask every question you have — that is your right.
Anaesthesia. In the large majority of cases a local anaesthetic is enough. You are awake, you feel no pain — only pressure and sounds, which are more startling than painful. Sedation may be offered for a long procedure, several teeth in one sitting, or marked anxiety. General anaesthesia, in hospital, is kept for particular cases.
The procedure. The dentist eases the gum aside to reach the tooth. If the tooth is buried in bone, a small amount of bone is removed around it. If it is wedged or tilted, the tooth is sectioned into pieces — that can sound alarming, but it is precisely what allows it to be lifted out without forcing the bone or the neighbouring tooth. The socket is cleaned, then closed with a few stitches, sometimes dissolvable ones. You then bite on a gauze pad to help a clot form.
A straightforward extraction takes little time. A complex one needs more planning, and your dentist may choose to refer you to a maxillofacial surgeon — that is not a failure or a snub, it is exactly the right reflex when the anatomy is delicate.
The days that follow: what helps, what harms
The first days are the most uncomfortable: the cheek swells, the jaw feels stiff, the area is sore. That is normal, and it settles.
What helps:
- ice against the cheek on the first day, in short spells, never directly on the skin;
- the painkillers you were prescribed, taken regularly rather than waiting for the pain to take hold;
- soft, lukewarm food: purées, yoghurt, cooled soup, scrambled eggs;
- sleeping with your head slightly raised the first night;
- brushing your other teeth again from the next day, gently, keeping away from the wound.
What you must not do:
- smoke — nothing else exposes you as much to poor healing;
- rinse forcefully, spit hard, or use vigorous mouthwash in the first twenty-four hours;
- drink through a straw or suck on anything: the suction can dislodge the clot;
- take a hot bath, a sauna, do strenuous exercise, or drink alcohol.
The reason is always the same: protect the clot. That small plug of blood forming in the socket is the bone's natural dressing. If it goes, bone is left exposed — that is dry socket.
Complications: what you must be told beforehand
An honest practitioner does not sell an extraction as a trivial act.
Dry socket is the most common complication. The clot breaks down or is lost, and the exposed bone becomes intensely painful. The characteristic sign: pain that, instead of fading, clearly worsens after the third day, often with a bad smell or taste. It is treated at the surgery — but you need to call, not grit your teeth.
Infection of the site is possible: pain that returns, swelling that grows instead of shrinking, fever, discharge.
Nerve injury concerns mainly the lower wisdom teeth. Their roots can lie very close to the inferior alveolar nerve, which supplies sensation to the lower lip, chin and gum, and sometimes to the lingual nerve, which serves the side of the tongue. Injury causes numbness, tingling or loss of feeling in those areas. It is uncommon, but it is real — and it must be explained to you beforehand, not discovered afterwards. Most often sensation returns with time; occasionally it does not return fully. This risk is exactly why routine preventive removal is unreasonable: you don't take that risk for a tooth that is causing no trouble at all.
The UK National Health Service sets out the same logic: wisdom teeth that cause no symptoms and no damage are not removed. The available systematic reviews — including those from Cochrane — provide no solid case for routinely extracting asymptomatic wisdom teeth.
Emergency: the signs that mean calling 101
A dental infection can, rarely, spread into the spaces of the neck and the floor of the mouth. That is a life-threatening emergency, and it is not up for discussion.
Call 101 immediately, or go to an emergency department, if you have:
- swelling of the face or neck that is spreading, especially under the jaw or towards the throat;
- difficulty swallowing, speaking, or above all breathing;
- a high fever with chills and a sense that something is seriously wrong;
- an inability to open your mouth.
At that point you do not wait for tomorrow's appointment.
Call your dentist promptly — without going through 101 — if, after an extraction: the bleeding will not stop despite firmly biting on gauze, you develop a fever, or the pain worsens after the third day instead of easing.
To finish
There is no single rule for wisdom teeth: there is your mouth, your X-ray, and a decision that must be argued for. If nobody can explain clearly why that tooth needs to go, you are entitled to ask — and to seek a second opinion.
Conversely, if it infects your gum every few months, if it is damaging the tooth next door, or if decay has set in beyond reach: the longer you wait, the harder the procedure and the longer the recovery.
Get a clear answer before it becomes complicated. Find a dentist near you on OlamKal and book an appointment: an examination, an X-ray, and a straight answer — extract, or monitor.
For your rights and dental care coverage, the reference remains the Israeli Ministry of Health.
