When a Tooth Is Loose: Telling Gum Disease, Injury and Baby-Tooth Replacement Apart, and Treatment
A loose adult tooth is mostly because trauma has hurt the tissue supporting the tooth or gum disease has reduced the bone around it. If it loosens after a blow, have a dentist check the position and root condition at once; if it loosens gradually, a gum examination is needed. By contrast, a child's baby tooth loosening as the permanent tooth is about to come in is a normal replacement process that mostly can just be watched.
Key facts
| As gum disease progresses | Gums swell and fester, and teeth become sensitive and loose (source: KDCA National Health Information Portal) |
|---|---|
| Subluxation | Injury to supporting tissue with abnormal looseness but no change in tooth position (source: KDCA National Health Information Portal) |
| Splinting after trauma | A flexible splint for up to 2 weeks when looseness is excessive (source: International Association of Dental Traumatology (IADT) 2020 Guidelines) |
| Gum disease checkup interval | Every 3-6 months (source: KDCA National Health Information Portal) |
| Scaling under insurance | Once a year for ages 19 and over (source: National Health Insurance Service (NHIS)) |
| Smoking and gum disease | Smokers are more likely than non-smokers to develop gum disease (source: KDCA National Health Information Portal) |
What makes a tooth loose?
A tooth is set in the bone beneath the gum, and the periodontal ligament connects the root to the bone. When this supporting tissue is hurt by impact or destroyed by inflammation, the tooth loosens. Treatment differs completely by cause, so when and by what trigger it began to loosen matters.
The most common cause in adults is gum disease. Toxins made by bacteria in plaque slowly destroy the gum and bone, and the force supporting the tooth weakens. Injury from falling or being hit, and the habit of grinding or clenching hard, can also loosen teeth.
- Gum disease: loosens gradually, with gum bleeding, swelling and bad breath
- Trauma: loose right after a blow, pain when chewing
- Grinding and clenching: several teeth loosen and wear slightly
- Baby-tooth replacement: loosens naturally as the permanent tooth comes in
What should I do if a tooth is loose after a blow?
The Korea Disease Control and Prevention Agency (KDCA, 질병관리청) divides dental trauma into concussion, where the tooth stays in place but hurts when tapped; subluxation, where the position is unchanged but the tooth is abnormally loose; and extrusive luxation, where the tooth is pushed partly out. In every case, diagnosis at a dentist as soon as possible is needed.
According to the guideline of the International Association of Dental Traumatology (IADT), when looseness from subluxation is excessive, the tooth can be tied to neighboring teeth with a flexible splint for up to 2 weeks. If the tooth has been pushed out or driven in, it is moved back into place and then splinted.
Right after trauma a tooth may look fine while the nerve slowly deteriorates, so follow-up checks continue from a few weeks to over a year. Meanwhile, do not chew hard food with that tooth, and keep it clean with a soft toothbrush.
How is a tooth loosened by gum disease treated?
First, tartar above the gum is removed by scaling, and tartar attached to the root surface below the gum is cleaned up by root planing. The KDCA explains that if non-surgical treatment cannot remove all the tartar in deep gum pockets, surgical treatment is needed.
Looseness sometimes lessens once inflammation settles, but bone that is already lost does not come back by itself. So after treatment, checkups every 3-6 months to prevent relapse are important. Smokers have a higher risk of gum disease and diabetes can make gum destruction severe, so quitting smoking and managing blood sugar are also needed.
For ages 19 and over, National Health Insurance covers one scaling between January 1 and December 31 each year. Regularly removing tartar before looseness even starts is the surest prevention.
What should I do when a child's baby tooth is loose?
A baby tooth loosens and falls out naturally as the permanent tooth rises beneath it and the root dissolves. If the child is not greatly bothered, you can let it fall out by itself rather than pulling it.
However, if it suddenly loosens after a fall or blow, or the permanent tooth is already coming up in another spot while the baby tooth holds on, a dentist should check. A baby tooth knocked out by trauma is not replanted, and the permanent tooth beneath and surrounding tissue are examined for effects.
Must a loose tooth always be extracted?
Not every loose tooth is pulled. A tooth loosened by trauma often recovers after splinting, and a tooth loosened by gum disease can sometimes be kept with gum treatment, depending on the amount of remaining bone and the degree of inflammation.
Extraction is considered if most of the bone is gone and the tooth moves greatly with every bite, or if repeated inflammation threatens the neighboring teeth. After extraction, the choice is among an implant, bridge or denture, and people aged 65 and over can receive National Health Insurance coverage for up to 2 implants in a lifetime.
Common myths and facts
Myth: A loose tooth eventually has to be pulled.
A tooth loosened by trauma often recovers after splinting, and a tooth loosened by gum disease can sometimes be kept with gum treatment and care.
Myth: Getting scaling makes teeth loose.
The KDCA explains that when the space tartar had filled is exposed, people easily feel that teeth are loose and gaps have opened. Scaling does not make teeth loose.
Frequently asked questions
I can feel the tooth move when I touch it. Should I go to the dentist right away?
If an adult tooth is loose enough to feel by hand, gum disease or injury may have progressed, so a dental checkup as soon as possible is good. Wiggling it repeatedly to check puts strain on the supporting tissue, so leave it alone.
Will a loose tooth become firm again if it is splinted?
When loosened by trauma, it often firms up as the periodontal ligament recovers during the splinting period. When it is loose because gum disease has reduced bone, splinting alone does not solve it, and gum treatment is needed first.
Can implants also become loose?
If a prosthesis on an implant is loose, the internal screw has often loosened or the crown is about to come off, and it may also be peri-implantitis, which reduces the surrounding bone. It is good to have the cause checked at the dentist who placed it.
My teeth seem loose during pregnancy.
In pregnancy, hormone changes tend to worsen gum inflammation, so gums may swell and teeth may feel lifted. If you tell the dentist you are pregnant and have your gums checked, you can be advised on what care is possible for your stage of pregnancy.
Is it okay for a child to pull out a baby tooth alone?
If it is loose enough to be nearly out, it can be removed with clean hands or gauze, but pulling forcibly can injure the gum. If bleeding lasts long or a root seems to remain, have a dentist check.
Related topics
- Cracked or loose tooth
- Cracked or loose tooth
- Gum disease and bad breath
- Bleeding and Swollen Gums
- First aid for a knocked-out tooth
- When to See a Dentist for Bleeding Gums