Why wisdom teeth cause trouble
Wisdom teeth are the last to arrive, usually between seventeen and twenty-five. By then the jaw is fully grown and the other twenty-eight teeth are in place. If there is not enough room left, the tooth cannot come through properly — it stays partly or entirely buried, or pushes at an angle.
A tooth in that position is very hard to clean. Plaque accumulates around it, and the gum flap covering it traps food. This is where the problems begin.
When removal is genuinely justified
Removal is not automatic. It is indicated when the tooth is causing harm or is very likely to.
- Repeated infection of the gum flap (pericoronitis) — pain, swelling, difficulty opening the mouth.
- Decay in the wisdom tooth itself, when it cannot be restored properly because of its position.
- Damage to the tooth in front — an angled wisdom tooth pressing against its neighbour can cause decay or root resorption there.
- A cyst forming around a buried tooth.
- Gum disease that cannot be controlled around it.
What the procedure involves
Everything begins with imaging. A panoramic X-ray shows the position of the tooth and its relationship to the nerve running through the lower jaw. Where that relationship looks close, a Cone Beam 3D scan gives the exact three-dimensional picture — this matters, because it changes how the extraction is planned.
The procedure itself is done under local anaesthetic. You feel pressure, not pain. A tooth that has erupted normally may take a few minutes. A buried or angled one requires access through the gum and sometimes division of the tooth so it can be removed in pieces — which is gentler on the bone than forcing it out whole.
Recovery
- The first 24 hours — a clot forms in the socket and must be protected. Do not rinse forcefully, do not spit, do not use a straw, do not smoke.
- Swelling peaks around the second or third day, then subsides. A cold compress on the first day helps.
- Eating — cool, soft food at first, chewing on the other side.
- Cleaning — carry on brushing your other teeth normally from the first evening. Keeping the mouth clean helps healing; neglecting it does the opposite.
The honest answer on risk
Any surgical procedure carries risk, and you are entitled to hear it plainly. For lower wisdom teeth, the nerve supplying sensation to the lip and chin can run very close to the roots. This is exactly why imaging is done beforehand and why a 3D scan is used when the relationship is tight: to plan around the nerve rather than discover it.
Ask your dentist what your own images show. A clear answer to that question is a reasonable thing to expect before agreeing to surgery.