A tooth looks longer than it used to, or cold water hits one spot. Recession is extremely common and it is not reversible — but stopping it is realistic, and that is the goal worth aiming at.
You notice a tooth looks longer than it used to, or cold water hits one spot in a way it never did before. That is gum recession, and it is extremely common — most people have some by middle age.
Here is the part most pages skip.
Gum tissue does not grow back
Recession is not something that reverses on its own, and no toothpaste, oil or massage technique regrows it. Where the gum has moved down, it stays down unless it is surgically rebuilt.
That sounds discouraging until you reframe the goal. The aim is to stop it progressing, which is realistic and usually achievable. Gums that have receded 1mm and then held steady for twenty years are not a problem. Gums that recede another millimetre every year are.
Why the exposed part matters
The crown of a tooth is covered in enamel. The root is not — it is covered in cementum, which is softer, wears faster, and decays more easily. So recession brings three things with it:
- Sensitivity, because the tubules in the root run straight to the nerve.
- Root decay, which is more common with age and easy to miss.
- A notch at the gum line, where the root has worn away.
What is actually causing it
The pattern usually tells you which, and that matters because the treatment is entirely different:
| Pattern | Likely cause |
|---|---|
| One or two teeth, often on the side you brush hardest | Brushing force and technique |
| Generalised, with bleeding, bad breath, loose teeth | Periodontitis — bone loss, with the gum following |
| Worn, notched gum lines plus flattened biting surfaces | Grinding and clenching |
| Appeared during or after orthodontic treatment | Teeth moved to the edge of the bone that houses them |
| Thin, delicate gum tissue throughout | Genetically thin biotype — less margin for error |
Smoking makes all of them worse, and a lip or tongue piercing resting on the gum will do it mechanically.
What a dentist can do about it
Most of the treatment is removing the cause, and that part is not glamorous:
- If it is periodontal, deep cleaning below the gum line and a maintenance schedule. Stopping bone loss is the whole game.
- If it is brushing, two minutes of technique coaching changes more than any product. Soft bristles, light pressure, small circles — not a sawing motion with a firm brush.
- If it is grinding, a night guard protects what is left.
- For sensitivity, desensitising treatment, or bonding to cover an exposed, worn root surface.
- A gum graft can cover an exposed root surgically, using tissue from the palate or a donor material. It is a real option, usually for a single tooth with a specific problem — appearance at the front, or a root that keeps decaying — rather than a general fix for mild recession everywhere.
A reasonable dentist will talk you out of grafting more often than into it. Mild recession that has stopped moving is usually best left alone and monitored.
In Korea
Scaling is covered by national insurance once a year for most adults, and it is the cheapest way to have the gum line checked by someone who measures rather than guesses. Deeper periodontal treatment is partly covered.
Gum grafting is a surgical procedure and generally sits outside that — treat it as private pay and ask for a written estimate before agreeing to anything.
What you can change today
- Switch to a soft brush and hold it in your fingertips, not your fist. If the bristles splay out within a month, you are pressing far too hard.
- Angle it at 45 degrees to the gum line and use small circles.
- Use interdental brushes sized to your gaps. Forcing one that is too big does its own damage.
- Do not brush straight after anything acidic — wait half an hour, or the softened surface brushes away.
- Have it measured. Recession is tracked in millimetres. Without a baseline, nobody can tell whether yours is moving.
At Seoul Lab Dental: we measure gum levels rather than eyeballing them, so there is a number to compare against at your next visit — and we will tell you plainly when recession has stopped and is better left alone. Explained in English, with any treatment costed in writing first.
Frequently asked questions
Can receding gums grow back?
No. Gum tissue that has moved down does not regrow, and no toothpaste, oil or massage technique changes that. A gum graft can cover an exposed root surgically in selected cases. For most people the realistic goal is stopping the recession from progressing, which is usually achievable once the cause is identified.
What causes receding gums?
The pattern points to the cause. One or two teeth on the side you brush hardest suggests brushing force and technique. Generalised recession with bleeding and bad breath suggests periodontitis. Notched gum lines with flattened biting surfaces suggest grinding. It can also follow orthodontic movement, or simply reflect naturally thin gum tissue. Smoking worsens all of them.
Why are receded gums sensitive?
The exposed part is root, not crown, and roots have no enamel. The surface is softer, wears faster, and the tubules inside run towards the nerve — which is why cold air or water reaches it so directly. Exposed roots also decay more easily than enamel does, so they need watching as well as desensitising.
Do I need a gum graft?
Usually not. Grafting is most often worth it for a single tooth with a specific problem — visible recession at the front, or a root that keeps decaying — rather than as a general fix for mild recession. Mild recession that has stopped moving is normally best monitored and left alone. A reasonable dentist talks people out of grafting more often than into it.
Is gum treatment covered by insurance in Korea?
Scaling is covered by national insurance once a year for most adults, and deeper periodontal treatment is partly covered. Gum grafting is surgical and generally sits outside that, so treat it as private pay and ask for a written estimate before agreeing to it.
Want a clear estimate for your treatment?
Book a 3D scan and consultation — you'll leave knowing your treatment plan and exact cost.
Get my estimate
