Why Is My Tooth Loose?
A loose tooth in an adult means the structures holding the tooth in place have been weakened or damaged. Each tooth sits in a socket of bone and is held in place by a network of tiny ligaments called the periodontal ligament. Healthy gum tissue seals around the tooth, protecting the bone and ligaments underneath.
When any part of this support system breaks down, the tooth begins to move. The amount of looseness can range from barely noticeable to severe. Dentists grade tooth mobility on a scale: Grade 1 means slight movement, Grade 2 means the tooth moves more than 1 millimeter, and Grade 3 means the tooth moves vertically or can be depressed into the socket.
Causes of a Loose Tooth in Adults
Several conditions can cause an adult tooth to become loose. Understanding the underlying cause is critical because it determines whether the tooth can be saved and what treatment is needed.
Gum Disease (Periodontitis)
Periodontal disease is the leading cause of loose teeth in adults. When plaque and bacteria accumulate below the gumline, they trigger chronic inflammation that gradually destroys the bone and connective tissue supporting the teeth. As bone is lost, teeth lose their anchor and begin to shift or loosen.
The American Academy of Periodontology estimates that nearly half of adults aged 30 and older have some form of periodontal disease.[1] In its early stages (gingivitis), the damage is reversible. Once it progresses to periodontitis with bone loss, the damage is permanent, though treatment can stop further progression and stabilize loose teeth.
Injury or Trauma
A blow to the face from a fall, car accident, or sports injury can knock a tooth loose suddenly. The impact damages the periodontal ligament and may fracture the surrounding bone. A traumatically loosened tooth is a dental emergency. The sooner you are seen, the better the chances of saving the tooth.
If a tooth is knocked completely out (avulsed), handle it by the crown only, rinse it gently without scrubbing, and try to place it back in the socket. If you cannot reinsert it, keep it moist in milk or saliva and see a dentist or oral surgeon within 30 minutes for the best chance of reimplantation.
Teeth Grinding and Clenching (Bruxism)
Chronic grinding or clenching places excessive lateral and vertical force on your teeth. Over time, this force stretches the periodontal ligament and can cause bone loss around affected teeth. Bruxism-related looseness often affects the front teeth or premolars, and many people grind during sleep without realizing it.
Signs that grinding may be loosening your teeth include worn or flattened tooth surfaces, jaw soreness on waking, and headaches. A night guard prescribed by your dentist can reduce the force on your teeth and help prevent further loosening.
Bone Loss (Osteoporosis and Other Conditions)
Conditions that reduce bone density throughout the body can also affect the jawbone. Osteoporosis, while more commonly associated with hip and spine fractures, has been linked to reduced jawbone density and increased tooth loss in some studies.[2] Medications used to treat osteoporosis (bisphosphonates) can themselves affect jawbone health in rare cases.
Other medical conditions that affect bone metabolism, including hyperparathyroidism and long-term steroid use, may also contribute to jawbone loss and loose teeth.
Pregnancy and Hormonal Changes
Elevated progesterone and estrogen levels during pregnancy increase blood flow to the gums and alter the body's inflammatory response to bacteria. This can lead to pregnancy gingivitis, a condition affecting up to 60% to 75% of pregnant women. In some cases, the inflammation is severe enough to temporarily loosen teeth.
Loose teeth during pregnancy are usually temporary and improve after delivery. However, if you notice a loose tooth while pregnant, see your dentist. Untreated gum inflammation during pregnancy can progress and cause lasting damage.
Is a Loose Tooth an Emergency?
Whether a loose tooth requires emergency care depends on the cause and severity.
Seek immediate care if a tooth was loosened by a blow or impact, if the tooth is very loose and at risk of falling out, if there is significant bleeding or swelling around the tooth, or if you are in severe pain. These situations call for same-day evaluation by a dentist, oral surgeon, or emergency room.
If the looseness has developed gradually and there is no acute pain or bleeding, it is not a same-day emergency, but it should still be evaluated soon. Schedule an appointment with your dentist or periodontist within the next few days. Waiting weeks or months allows the underlying problem to worsen, which can move a savable tooth into unsavable territory.
Can a Loose Tooth Be Saved?
In many cases, yes. The chance of saving a loose tooth depends on the cause, the amount of bone remaining around the tooth, and how quickly treatment begins.
Teeth loosened by gum disease can often be stabilized if enough bone remains and the infection is controlled. Teeth loosened by trauma have a good prognosis when treated promptly. Teeth with severe bone loss on all sides or those that are Grade 3 mobile (moving in all directions) are more difficult to save, and extraction may be the most predictable option.
Your periodontist will evaluate the tooth using probing measurements, X-rays, and possibly a CBCT scan to determine how much bone support remains. Based on this assessment, they will give you an honest evaluation of whether the tooth can be saved and what treatment options are available.
Treatment Options for a Loose Tooth
Treatment depends on the cause and severity. Your dentist or periodontist may recommend one or a combination of the following approaches.
Deep Cleaning (Scaling and Root Planing)
For loose teeth caused by gum disease, the first step is typically scaling and root planing. This deep cleaning removes plaque, tartar, and bacteria from below the gumline and smooths the root surfaces so gum tissue can reattach. In mild to moderate cases, deep cleaning alone may be enough to stabilize a slightly loose tooth over several weeks as inflammation resolves and the tissue heals.
Tooth Splinting
Splinting bonds the loose tooth to the stable teeth next to it using a thin wire or composite resin material. This distributes biting forces across multiple teeth and gives the loose tooth time to heal. Splinting is commonly used for teeth loosened by trauma and may also be used alongside periodontal treatment for gum-disease-related looseness.
Periodontal Surgery
When deep cleaning alone is not enough, a periodontist may recommend surgical options. Flap surgery (pocket reduction surgery) involves lifting the gum tissue to clean deep infection and reshape damaged bone. Bone grafting adds synthetic or donor bone material to areas where bone has been lost. Guided tissue regeneration uses a special membrane to encourage regrowth of bone and tissue around the tooth.
These procedures can help regenerate some of the support structure lost to gum disease, improving the long-term outlook for a loose tooth.
Extraction and Tooth Replacement
When a tooth cannot be saved due to severe bone loss, fracture, or ongoing infection, extraction is the most predictable option. Keeping a tooth with a poor prognosis can put neighboring teeth at risk if the infection or bone loss spreads.
After extraction, replacement options include a dental implant, a fixed bridge, or a removable partial denture. A periodontist or prosthodontist can help you decide which option is best for your situation. Learn more about tooth replacement on our [prosthodontics specialty page](/specialties/prosthodontics).
When to See a Periodontist for a Loose Tooth
Your general dentist can evaluate a loose tooth and may refer you to a periodontist for further treatment. A periodontist is the specialist with the most advanced training in the bone and gum tissue that support your teeth.
See a periodontist if your tooth has been loose for more than a few days, if you have signs of gum disease (bleeding gums, persistent bad breath, gum recession), if your dentist has diagnosed bone loss around the tooth, or if you have been told the tooth may need to be extracted and want a second opinion. Periodontists complete 3 years of residency training beyond dental school, focused on saving teeth affected by gum disease and bone loss. Visit our [periodontics specialty page](/specialties/periodontics) to learn more.
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