Loose teeth: causes, mobility grades and treatment
A loose tooth does not automatically mean an extraction. What matters is how much it moves and how much bone is left around the root. Teeth that are only slightly loose can often be stabilised once the cause is treated, usually gum disease (periodontitis).
A loose tooth is frightening. Many people keep touching it with their tongue for days, wondering what comes next, and some start to believe that losing their teeth is only a matter of time. The guide below explains when that is true and when it is not.
Why teeth become loose in adults
In adults, a tooth starts to move when the tissues that hold it in the bone weaken, or when it takes more force than it can handle. The usual causes:
- Gum disease (periodontitis). Most cases start here. Bacteria in tartar inflame the gums, and the bone around the teeth slowly recedes. With less bone, the tooth has less support.
- A blow to the mouth. After an accident or a fall, the ligament that holds the tooth can stretch or tear. The tooth moves, but it often recovers if it is splinted in time.
- Bruxism. Clenching or grinding your teeth, especially at night, puts far more load on them than a normal bite.
- Old dental work that no longer fits well. A bridge or crown that sits too high leaves one tooth taking all the force on its own.
- An infection at the root. An abscess at the tip of the root can weaken the bone around it. After root canal treatment, the tooth can stabilise.
Why front teeth become loose
Front teeth have smaller, thinner roots than molars, so they feel bone loss sooner. As gum disease progresses, front teeth can also drift apart, leaving gaps that were not there before.
Mobility grades
The dentist measures how much a tooth moves by pushing it gently with two instruments, from the front and from the back. The result is recorded as a grade.
| Grade | What it means | What can be done |
|---|---|---|
| 1 | The tooth moves slightly more than normal, horizontally, by less than 1 mm | The cause is treated; the tooth can stabilise |
| 2 | The tooth moves horizontally by more than 1 mm | Gum treatment, splinting or a restoration that joins the teeth together; the tooth can stabilise |
| 3 | The tooth moves horizontally and vertically, and can be pressed down into the bone | Usually extracted |
A healthy tooth moves a tiny amount too, not enough to notice. The ligament that holds it is elastic, so it can cushion the bite.
Can a loose tooth be saved?
Yes, often, when the mobility is grade 1 or 2 and there is still bone around the root. Once the cause is treated, the gums heal and the tooth settles firmly in the bone again. If it is joined to the neighbouring teeth, it no longer takes the force of the bite on its own, and healing is easier.
When the tooth also moves vertically and almost all the bone has been lost, it usually cannot be kept. In that case, the dentist explains what can go in its place.
The dentist makes the decision after the X-ray and an examination in the chair. An X-ray on its own does not show how much a tooth moves.
If you have been told a loose tooth needs to come out, it is worth finding out its grade first. An extraction cannot be undone.
How loose teeth are treated
Treating the cause
The first step is to treat whatever is weakening the tooth. For gum disease, the dentist cleans the tartar from under the gums and from the pockets around the teeth, and a laser reduces the bacteria there. For bruxism, a night guard protects the teeth. When old dental work is overloading a tooth, it is adjusted or remade.
Splinting
Loose teeth are joined to the neighbouring teeth with a thin glass fibre strip, bonded to the back of the teeth with tooth-coloured material. It cannot be seen from the front. The teeth stay stable while the gums and bone heal, and the splint can stay in place long term.
A fixed restoration that joins the teeth
When there are many loose teeth in one arch, a fixed full-arch restoration can take over the job of the splint. At D'Institute it is called D'Original: a titanium framework with zirconia crowns, supported by the teeth that are kept. The teeth end up held in a single structure, and each one is supported by the others.
How much splinting costs
Splinting is charged per tooth, as shown in the D'Institute price list, under Prosthetic work (“Splinting, per tooth”). The total cost depends on how many teeth are joined and on the gum treatment needed beforehand.
What you can do until you see a dentist
What helps:
- gentle brushing twice a day, with a soft toothbrush;
- cleaning between your teeth with interdental brushes;
- food you don't need to bite with the loose teeth.
What doesn't help:
- pushing the tooth with your tongue or finger to see how much it moves;
- natural remedies as the only treatment. Herbal teas and mouthwashes can help with hygiene, but they do not make a tooth firm again.
When a second opinion is worth it
If you have been told your loose teeth need to come out, it is worth hearing another dentist's view before the extraction. At D'Institute, a second opinion is a consultation: the dentist looks at the X-ray, checks how much each tooth moves and tells you what can be kept.
Frequently asked questions
Why do teeth become loose in adults?
Usually because of gum disease (periodontitis), which gradually destroys the bone around the teeth. Other causes are a blow to the mouth, bruxism, old dental work that overloads a tooth, and infections at the root.
Why are my front teeth loose?
Front teeth have smaller roots, so they feel the bone loss from gum disease sooner. A blow to the mouth, or a bite that pushes them forward, can have the same effect.
Can a loose tooth be saved?
Often, yes, when the mobility is grade 1 or 2 and there is still bone around the root. The cause is treated, and the tooth is stabilised with a splint or with a restoration that joins it to its neighbours.
How are loose teeth stabilised?
The teeth are joined to their neighbours with a glass fibre strip bonded to the back of them (splinting) or, when there are many, with a fixed full-arch restoration. The cause is treated first.
How much does splinting cost?
At D'Institute, splinting is charged per tooth, as shown in the price list. The total cost depends on how many teeth are joined and on the gum treatment needed.
Is there a natural treatment for loose teeth?
No. Natural remedies can help with hygiene, but they do not rebuild bone or make a tooth firm again. A tooth stabilises only once the cause has been treated by a dentist.
Can healthy teeth move too?
Very slightly, yes. The ligament that holds the tooth is elastic, so it can cushion the bite. Movement you can feel with your tongue or finger is not normal and is worth having checked.
Reviewed by Dr. Cătălin Dimir, dentistPublished in October 2026