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Loose Teeth in Adults: Causes, Treatment and When to Get Help

An adult tooth that feels loose needs a dentist's attention. Advanced gum disease, an injury and teeth grinding can all loosen teeth. Here is what may be behind it, what a dentist can do, and when to get help quickly.

Updated September 2026·By the OHA editorial team·7 min read·How we write
Key takeaways
  • Adult teeth can become loose when advanced gum disease (periodontitis) damages the gums and bone that hold them in place. An injury, teeth grinding and, less often, osteoporosis in the jaw can also loosen teeth.
  • See a dentist as soon as possible if an adult tooth feels loose. The NHS says ask for an urgent appointment if you have gum disease and your teeth are becoming loose.
  • After an injury, see a dentist straight away, even if you cannot see any damage. A loose or displaced tooth can often be moved back into place and held with a splint while it heals.
  • Periodontitis cannot be reversed, but treatment can control it and slow or stop the bone loss.
  • Loose baby teeth in children are normal. They usually start to wobble at around age 6.

Adult teeth should feel firm. Better Health Channel (Victoria) describes the structures that support each tooth as the gums, a ligament and the bone. healthdirect Australia says to see a dental professional as soon as possible if your teeth feel loose. Depending on the cause, treatment can often help.

Why do adult teeth become loose?

Gum disease (periodontitis)

Gum disease starts with plaque, a sticky layer of bacteria that builds up along the gumline. The early stage, gingivitis, makes the gums red, swollen and prone to bleeding, and can be reversed. If it is not controlled, it can progress to periodontitis, which the Oral Health Foundation says damages the bone and tissues that hold teeth in place.

healthdirect says that over time the bone supporting the teeth can be lost, so teeth become loose and may fall out. The US National Institute of Dental and Craniofacial Research (NIDCR) and the American Dental Association (ADA) say teeth can also shift or move around.

Other signs include bleeding, red or swollen gums, bad breath, gums pulling back from the teeth, sensitive teeth, and a change in how your teeth fit together when you bite (healthdirect, ADA). The Australian Dental Association says periodontitis does not usually cause pain, so do not wait for it to hurt. See gum disease, bleeding gums and receding gums.

healthdirect says smoking, alcohol, stress, diabetes, some medicines, poor nutrition, pregnancy, puberty and a family history all make gum disease more likely. See diabetes and oral health and smoking, vaping and oral health.

An injury

healthdirect lists loose or displaced teeth (teeth that have moved from their usual position) among the results of a dental injury, which can happen after a fall, a blow to the face, a sporting accident or biting on something hard. The Australian Dental Association says one possible cause of a loose tooth after an injury is a crack or fracture below the gum, where you cannot see it. healthdirect also says you might not be able to see all the damage, which is why you should see a dentist after a mouth injury.

Grinding or clenching

Teeth grinding, also called bruxism, can happen while you sleep, when you may not know you are doing it (healthdirect). healthdirect and the Australian Dental Association both list loose teeth among its possible signs, along with cracked or chipped teeth, damaged fillings, a painful jaw and headaches. See teeth grinding.

Pregnancy

Better Health Channel says pregnancy hormones can put some women at risk of gum problems, and if gingivitis is left untreated it can become periodontal disease, where in severe cases teeth can become loose. Most of these gum problems settle after the birth, but it advises getting them checked by a dentist before you give birth. The sources we read link loose teeth in pregnancy to gum disease, not to pregnancy itself. See pregnancy and oral health.

Osteoporosis

The ADA says osteoporosis (bone loss) can happen in the jawbone and may lead to teeth becoming loose or falling out. It advises talking to your doctor if you are worried about getting enough calcium. See oral health in older age.

What to do if a tooth feels loose

  1. Book a dentist appointment. healthdirect says see a dental professional as soon as possible if your teeth feel loose. After an injury, go straight away (see the urgent box below).
  2. Keep cleaning gently. healthdirect advises brushing your teeth and gums gently twice a day with a soft toothbrush and fluoride toothpaste, and to keep brushing even if it makes your gums bleed. Clean between your teeth every day (cleaning between your teeth).
  3. Go easy on the tooth. After an injury, healthdirect suggests eating soft foods. A dental trauma leaflet from East Kent Hospitals (an NHS trust) says to avoid hard foods and biting on your front teeth, and to brush injured teeth gently with a soft toothbrush.
  4. Ease pain if you need to. The same leaflet suggests paracetamol or ibuprofen, following the dose on the packet. healthdirect advises avoiding high doses of aspirin after a dental injury, as it could increase bleeding.
  5. Do not smoke. The NIDCR says quitting tobacco can improve the results of gum treatment.

How a dentist treats a loose tooth

Treatment depends on the cause, so your dentist will first examine your teeth and gums and may take X-rays, which the NIDCR says can show bone loss from gum disease.

When gum disease is the cause

healthdirect says your dental professional will clean plaque and tartar (hardened plaque) from your teeth and treat the roots to get rid of the germs if needed. The NIDCR calls this deep clean scaling and root planing. For more serious gum disease, the NHS says you may need antibiotics, gum surgery, or to have some teeth removed. You may be referred to a periodontist, a dentist who specialises in gum disease (NIDCR, healthdirect).

Periodontitis cannot be cured, but healthdirect says it can be controlled and the bone loss may become very slow or stop. The NIDCR says good daily care at home is essential with any treatment. If a tooth cannot be saved, see replacing missing teeth for the options.

After an injury

healthdirect says a dentist will stabilise a loose or displaced tooth, for example with a splint or by bonding it to the next tooth, until your mouth heals. The East Kent leaflet says loose or displaced teeth are moved back into position and splinted for 2 to 4 weeks. It adds that injured teeth can later lose their nerve supply and need root canal treatment, sometimes years later, so keep seeing your dentist regularly. healthdirect recommends a mouthguard for contact sports: see sports mouthguards.

When grinding is the cause

The NHS says a dentist may recommend a mouth guard or splint, worn at night to protect your teeth from damage. healthdirect also mentions dental treatment to repair damaged teeth, and relaxation techniques to help with stress.

When to see a dentist
  • An adult tooth feels loose, or your gums are swollen or bleeding (healthdirect).
  • A tooth is cracked, chipped, loose or lost after an accident, even if it looks fine (healthdirect, Australian Dental Association).
  • Your teeth have started to move, or the way they fit together when you bite has changed (ADA).
  • You grind your teeth and have tooth damage or jaw pain (NHS).
  • After an injury you develop a fever over 38°C, pus, a bad taste or swollen glands in your neck: healthdirect says contact your dentist or doctor.
Get help urgently
  • Gum disease with loose teeth: the NHS says ask for an urgent dentist appointment if you have gum disease and your teeth are becoming loose or falling out, your gums are very sore and swollen, or you have ulcers, red patches or a lump in your mouth.
  • Knocked-out adult tooth: healthdirect and the Australian Dental Association say try to see a dentist within 30 minutes. Follow the steps in dental emergencies.
  • After an injury in Australia: healthdirect says call triple zero (000) or go to the emergency department if you have trouble breathing, talking or swallowing, a lot of blood is going down your throat, or your mouth or tongue is very swollen.
  • The NHS says gum disease can lead to a dental abscess. That article lists the signs that need emergency care, such as swelling around your eye or neck.

Loose baby teeth in children

A wobbly baby tooth is usually nothing to worry about. The Australian Dental Association says baby teeth start to become loose at around age 6, often the lower front teeth first, and that a little earlier or later is normal. The roots of baby teeth are worn away as the adult teeth push up, so the tooth loosens before it falls out.

A baby tooth that is loosened or knocked out in an accident is different: see a dentist, and never put a knocked-out baby tooth back in (Australian Dental Association, healthdirect). See children's teeth.

Frequently asked questions

Can a loose adult tooth firm up again?

It depends on the cause. After an injury, a dentist can often splint the tooth so it is held still while the mouth heals (healthdirect). With gum disease, periodontitis cannot be reversed, but healthdirect says treatment can control it and slow or stop the bone loss. Ask your dentist what to expect for your tooth.

Is a loose tooth an emergency?

After an injury, see a dentist straight away. The NHS says a loose tooth with gum disease needs an urgent dentist appointment. Trouble breathing or swallowing, or heavy bleeding, needs emergency care.

Does a loose tooth always hurt?

No. The Australian Dental Association says periodontitis does not usually cause pain, so a tooth can loosen without much discomfort. Do not wait for pain before seeing a dentist.

Sources

  1. Gum disease, NHS, accessed September 2026
  2. Teeth grinding (bruxism), NHS, accessed September 2026
  3. Dental trauma, East Kent Hospitals University NHS Foundation Trust, accessed September 2026
  4. Gum disease, healthdirect Australia, accessed September 2026
  5. Dental injury, healthdirect Australia, accessed September 2026
  6. Teeth grinding (bruxism), healthdirect Australia, accessed September 2026
  7. Pregnancy and teeth, Better Health Channel, accessed September 2026
  8. Gum diseases, Australian Dental Association, accessed September 2026
  9. Dental trauma, Australian Dental Association, accessed September 2026
  10. Teeth grinding, Australian Dental Association, accessed September 2026
  11. Dental care for kids, Australian Dental Association, accessed September 2026
  12. Gum disease, Oral Health Foundation, accessed September 2026
  13. Gum disease, American Dental Association (MouthHealthy), accessed September 2026
  14. Common dental concerns for older adults, American Dental Association (MouthHealthy), accessed September 2026
  15. Periodontal (gum) disease, NIH National Institute of Dental and Craniofacial Research, accessed September 2026

This article is general information about oral health. It is not a diagnosis or a substitute for advice from a dentist or doctor who knows your situation. If you have pain, swelling, bleeding that does not settle, or a problem that is getting worse, see a dental professional. In an emergency, contact your local emergency service.

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