Wisdom tooth extraction is probably the most common surgical intervention in dentistry. And at the same time - one of those surrounded by the most fear, misinformation and bad stories shared between friends. In this article we explain in detail what wisdom teeth are, why they cause so many problems, when extraction is truly necessary, what the procedure looks like, how long recovery takes and how to avoid the most common complications.

What wisdom teeth actually are

Wisdom teeth, or third molars, are the last teeth to erupt - typically between ages 17 and 25. There are four (one in each corner of the jaw) - upper left and right, lower left and right. The name "wisdom tooth" stems from the fact that they appear at the age when a person "comes of age", in late adolescence or early adulthood.

From an evolutionary perspective, wisdom teeth are a remnant from when our ancestors ate raw, hard food and had much larger jaws. As the human jaw has shrunk over centuries (softer diet, different chewing patterns), there is simply no longer enough room. Estimates suggest that more than 60% of adults have a problem with at least one wisdom tooth.

Why wisdom teeth cause problems

The main reason is lack of space in the jaw. The wisdom tooth tries to erupt where there is not enough room - and several things can happen, all bad:

  • Impacted wisdom tooth - the tooth remains partially or fully buried in bone or under the gum because it cannot break through.
  • Tilted wisdom tooth - erupts at an angle (most often toward the neighbouring tooth) and pushes against it.
  • Partially erupted wisdom tooth - only part of the crown is visible, with a gum flap (pericoronal pocket) where food and bacteria collect.
  • Cyst around the wisdom tooth (follicular cyst) - a fluid-filled cavity forms in the bone, gradually destroying it.

All these situations can (and usually are) sources of pain, infection and complications that affect adjacent teeth and jawbone over time.

When extraction is needed

  • Recurrent painful, swollen gums around the wisdom tooth (pericoronitis) - often comes in waves, worsening with colds, stress or reduced immunity.
  • Decay on the wisdom tooth or adjacent tooth caused by inaccessible hygiene (wisdom teeth are difficult to brush due to position).
  • Orthodontic treatment - before or during braces/aligners, to avoid pressure on the other teeth.
  • Cysts and tumours associated with the wisdom tooth diagnosed on X-ray.
  • Root resorption of the adjacent tooth - the wisdom tooth pressing against and dissolving the root of the previous molar.
  • Chronic inflammation with a partially erupted wisdom tooth.
  • Acute abscess in the wisdom tooth area.

When wisdom teeth should NOT be extracted

Not every wisdom tooth needs to go. If the wisdom tooth is:

  • In a correct position, fully erupted, in occlusion with an antagonist tooth;
  • Without decay or signs of inflammation;
  • The patient can clean it properly (brush and floss can reach it);
  • No pathological changes visible on X-ray.

...then the recommendation is not to extract. An annual check-up is performed, and if anything changes - only then is intervention considered.

The "preventive extraction of all wisdom teeth in high school" practice, popular 30 years ago, has now been abandoned. Surgical intervention has risks that should not be taken without clinical reason.

Before the procedure - examination and CBCT

Before every wisdom tooth extraction in our clinic we perform:

  1. Clinical examination - tooth position, gum condition, mouth opening, signs of inflammation.
  2. Panoramic X-ray - gives an overview of all wisdom teeth and their relationship with the inferior alveolar nerve.
  3. CBCT scan (3D) - mandatory for lower wisdom teeth near the nerve, or for complex positions in the upper jaw (sinus proximity).

CBCT is critically important for lower wisdom teeth. The inferior alveolar nerve runs through a canal in the lower jaw and damaging it can cause permanent numbness of the lower lip and chin. CBCT shows exactly where the nerve is in relation to the wisdom tooth root - and if the risk is high, the surgeon plans a technique that minimises the chance of injury (e.g. coronectomy - removing only the crown of the tooth, leaving the root next to the nerve).

The procedure - what it looks like

There is a significant difference between simple and surgical wisdom tooth extraction.

Simple extraction. When the wisdom tooth is already erupted and accessible, it is performed like any other tooth extraction. Local anaesthesia, forceps, removal in 5-15 minutes. Painless, sutures usually not needed.

Surgical extraction (impacted wisdom tooth). A more complex procedure, but routine in experienced hands:

  1. Local anaesthesia - block anaesthesia (lower wisdom tooth) or infiltration (upper). The patient feels no pain, only pressure and motion.
  2. Small gum incision to reveal the tooth and bone.
  3. Bone removal around the tooth (only as much as needed for access) with specialised burs.
  4. Sectioning the tooth - the tooth is often divided into pieces to be removed more easily without traumatising surrounding tissue.
  5. Extraction of tooth fragments.
  6. Wound cleaning and verification that no fragment or root has been left behind.
  7. Sutures - typically 2-4, resorbable (dissolve in 7-10 days) or non-resorbable (removed at follow-up after 7 days).

The whole procedure typically takes 30-60 minutes per wisdom tooth. Removing all 4 wisdom teeth in one session is also possible, although it is often done by jaw or quadrant for eating comfort afterwards.

Sedation - an option for anxious patients

Patients with marked dental anxiety or fear of surgery can choose intravenous sedation. An anaesthesiologist administers medication through a vein - the patient is in a relaxed state, does not register the details of the procedure, but is not under general anaesthesia (still responsive to questions). After sedation, the patient must be accompanied - no driving for 24h.

Sedation is particularly useful when removing all four wisdom teeth at once, or in complex impactions where the procedure takes longer.

The first hours after the procedure

What to do:

  • Bite on gauze for 30-45 minutes after extraction - helps form a blood clot in the socket.
  • Cold compress on the cheek - 20 min cold, 20 min off, repeat for the first 4-6 hours. Reduces swelling.
  • Prescribed painkiller taken before the anaesthesia wears off (typically 2-3 hours after the procedure). Do not wait for the pain to start.
  • Antibiotics if prescribed (usually for surgical extractions with pre-existing swelling or infection).
  • Water - you can drink, but no straw.

What NOT to do:

  • Do not rinse vigorously for the first 24h - washes out the clot.
  • Do not spit - same reason.
  • Do not smoke for 48-72h (ideally longer) - smoking dramatically raises dry socket risk.
  • Do not use a straw - vacuum can pull the clot.
  • Do not drink hot liquids - they dilate vessels and increase bleeding.
  • No alcohol for 48h.
  • No vigorous physical activity for 2-3 days.

Eating after extraction

Day 1: lukewarm liquid or semi-liquid food - soup (lukewarm, not hot!), yoghurt, porridge, ice cream (cold food reduces swelling and bleeding), banana, rice porridge, minced meat without spices.

Days 2-3: soft foods that do not require intense chewing - boiled vegetables, pudding, omelette, mashed potato, boneless fish.

Days 4-7: gradual return to normal eating, but avoid foods with small seeds (sesame, caraway, poppy) that can lodge in the socket, and hard foods with sharp edges (chips, crackers).

Tip: chew on the side opposite the extraction for the first 5-7 days.

Recovery timeline

Day 1-3: peak swelling and tenderness. Pain is usually strongest in the first 24-48h, controlled with painkillers.

Day 3-7: swelling gradually subsides. Sutures are removed if non-resorbable (around day 7 in our clinic, at follow-up). Bruising on the cheek is possible - that is normal.

Day 7-14: the wound has fully closed at the surface, but is still healing in depth. You can function normally. Swelling is gone.

2-4 weeks: the wound is fully healed internally. Gum tissue remodels into its final shape.

3-6 months: the bone in the socket fully regenerates.

Dry socket - every surgeon's (and patient's) fear

Dry socket (alveolar osteitis) is the most common complication after wisdom tooth extraction, especially of the lower jaw. It occurs in 2-5% of cases overall, but up to 30% in smokers.

What happens: the blood clot that forms in the socket after extraction is "lost" - either by rinsing, spitting, sucking through a straw, or smoking. Without the clot, the bone in the socket is exposed to air and food - inflammation develops, causing intense pain that does not respond to painkillers.

Symptoms: pain typically 3-4 days after extraction that worsens (instead of improving), unpleasant taste and smell in the mouth, a visible "hole" where the clot should be.

Treatment: see your dentist immediately. The socket is irrigated, a medicated dressing with eugenol is placed (eases pain immediately) and changed every 2-3 days for 1-2 weeks. Pain disappears in 24-48h, the socket then heals normally.

Prevention: do not smoke, do not rinse for the first 24h, no straws, no spitting.

Other possible complications

  • Bleeding for more than 24h - not normal, contact us. In some patients on anticoagulants prolonged bleeding is expected.
  • Swelling and pain not subsiding after 4-5 days - may indicate infection.
  • Trismus - inability to open the mouth normally due to muscle spasm. Often a transient phenomenon after lower wisdom tooth surgery. Warm compresses and gentle opening exercises help.
  • Paraesthesia (numbness) of the lower lip and chin - occurs in less than 1% of cases, usually transient (typically lasting 2-6 months, rarely permanent). CBCT planning reduces the risk.
  • Sinus communication (upper wisdom teeth) - for upper wisdom teeth close to the sinus, opening the sinus can occur. A small one closes spontaneously; a larger one requires intervention.

How much it really hurts

Honest answer: significantly less than people expect. The procedure itself is painless (local anaesthesia). After the anaesthesia wears off, the first few hours are usually the hardest, but well controlled with painkillers (usually ibuprofen 400-600 mg every 6h, possibly paracetamol).

Most patients report less pain than they anticipated. Fear of pain is usually greater than the actual pain. That does not mean there is no discomfort - there will be some, but it is predictable and controlled.

If pain lasts more than 3-4 days or worsens - that is not normal and a reason for an urgent check-up (most often dry socket or infection).

Returning to work and normal life

Most patients return to work 2-3 days after surgical wisdom tooth extraction. If your work is physically demanding (construction, sport) - 5-7 days off is recommended.

Sport: light activities after 5 days, contact sports (boxing, football with heading) - minimum 2 weeks.

Air travel: not a problem after 48h, but ideally wait 5-7 days due to pressure changes that can in rare cases cause prolonged bleeding.

Myths about wisdom tooth extraction

"Every wisdom tooth must be extracted." - Myth. If correctly erupted and cleanable, leave it alone.

"Removing wisdom teeth affects other teeth - they shift." - Not proven. Orthodontic "shifting" of teeth in later years is not caused by wisdom teeth but by natural ageing.

"Wisdom tooth extraction causes memory loss." - Myth, usually associated with general anaesthesia or sedatives. Local anaesthesia has nothing to do with brain function.

"You lose weight after wisdom tooth extraction." - Temporarily, yes, because the first few days you eat liquid food. You return to original weight in 1-2 weeks.

"Pregnant women cannot have wisdom teeth extracted." - Ideally postponed if possible. If urgent (acute infection), the second trimester is the safest period.

Tips before the procedure

How to prepare for a wisdom tooth extraction:

  • Do not come on an empty stomach - eat something light an hour before the procedure (unless it is general anaesthesia or IV sedation - then 6h fasting).
  • Wear comfortable clothes with a wide collar - not tight.
  • Bring an escort if sedation or a complex procedure is planned.
  • Stock up beforehand: ice, lukewarm soup, yoghurt, ice cream, the prescribed painkiller, gauze for any bleeding.
  • Cancel important social commitments for 2-3 days after.
  • Sleep with your head elevated for the first 1-2 nights - helps reduce swelling.

Conclusion

Wisdom tooth extraction is a routine, predictable intervention in experienced hands. The fear is often greater than the actual discomfort. CBCT planning, modern surgical technique and a proper post-operative protocol minimise risks and speed recovery.

Most importantly: do not ignore a wisdom tooth that intermittently aches or causes swelling - those are signs that something is wrong. A consultation with a CBCT scan will give a clear plan: extract now, watch and wait, or treat conservatively. Our approach is individualised - we do not extract all wisdom teeth "preventively" without reason, but we do not delay an intervention that is clearly needed.

If you have questions about a specific case - yours or a family member's - feel free to come in for an exam. A consultation plus X-ray is enough to build a plan and explain what to expect.