Realigning your jaw depends on what’s causing the misalignment. Minor issues linked to muscle tension or a TMJ disorder can often improve with targeted exercises and oral appliances, while structural problems with your bite may require orthodontic treatment or surgery. The right approach starts with understanding whether the problem is in your muscles, your teeth, your jaw bones, or some combination of all three.
Why Your Jaw Falls Out of Alignment
Jaw misalignment happens for two broad reasons: your teeth don’t fit together properly, or your upper and lower jaw bones themselves are positioned unevenly. Sometimes both are happening at once. Genetics is the most common driver, but the list of contributing factors is long: teeth grinding, prolonged thumb sucking or pacifier use in childhood, tooth loss, poorly fitting dental restorations, impacted teeth, and TMJ disorders can all shift your bite over time.
The distinction matters because it determines your treatment path. If your teeth are crowded or crooked but your jaw bones are structurally sound, orthodontics alone can usually fix the alignment. If the bones themselves are the issue (your lower jaw sits too far back, or your upper jaw protrudes too much), you may need appliances, surgery, or both.
How Misalignment Is Diagnosed
A dentist or orthodontist will start with a physical exam, checking how wide you can open your mouth, pressing around the joint for tenderness, and feeling your joints as you open and close. They’re looking for clicking, popping, pain, or restricted movement. From there, dental X-rays can reveal how your teeth meet. CT scans and MRIs give a three-dimensional picture of the bone structure and the soft disc inside each jaw joint, which helps determine whether the misalignment is skeletal, dental, or driven by a displaced disc.
Exercises That Help With Muscle-Related Misalignment
When jaw misalignment is driven by tight or imbalanced muscles (common with TMJ disorders), specific exercises can retrain the muscles and improve how the joint tracks. These generally fall into two categories: stretching exercises that increase how far you can open, and coordination exercises that teach your jaw to move in a straight line without deviating to one side.
A systematic review in Frontiers in Oral Health found that coordination exercises performed for 10 to 45 minutes or about 10 repetitions, at least three times per day, for one to three months produced meaningful pain relief. For improving range of motion, the timeline was slightly longer: three to four months of consistent daily practice. The key word is consistent. Doing exercises once in a while produces very little change.
Common exercises include:
- Controlled opening: Place your tongue on the roof of your mouth and slowly open your jaw as far as you can without the tongue dropping. This trains the joint to open without the lower jaw sliding sideways.
- Resisted opening and closing: Place light finger pressure under your chin while opening, and on the front of your chin while closing. The gentle resistance strengthens the muscles that stabilize the joint.
- Lateral jaw stretches: Slowly shift your lower jaw to the left, hold for a few seconds, then repeat to the right. This loosens tight muscles on one side that may be pulling the jaw off center.
These exercises work best for functional misalignment, meaning the bones are fine but the muscles and disc aren’t cooperating. They won’t change a skeletal discrepancy or straighten crooked teeth.
Oral Appliances and Splints
Custom-made splints (sometimes called bite guards or occlusal splints) are one of the most common treatments for jaw misalignment related to TMJ problems. They work by changing how your teeth contact each other, which shifts the position of the jaw joint and reduces strain on the surrounding muscles.
There are two main types. Stabilization splints create even contact across all your teeth and keep your back teeth slightly apart, which relaxes the chewing muscles and gives the joint more space to move smoothly. Repositioning splints guide your lower jaw slightly forward to recapture a displaced disc inside the joint. A meta-analysis in The Journal of the Indian Prosthodontic Society found that both types produced similar reductions in jaw pain in the short and long term. For joint clicking, repositioning splints worked better initially, but stabilization splints actually showed a small advantage over the long term.
These appliances are typically worn at night, though some cases call for daytime use as well. They don’t permanently change your bite on their own, but they can relieve symptoms enough that other treatments (or the body’s own healing) can take over.
Orthodontic Treatment for Bite Correction
When misalignment involves how your teeth meet, braces or clear aligners can gradually shift everything into place. For jaw-level correction, orthodontic rubber bands (elastics) are often the critical component. These thick bands stretch between upper and lower brackets to apply targeted pressure that repositions the jaw over time.
The type of elastic depends on your bite problem. For an overbite, elastics hook from brackets on the upper front teeth to the lower back teeth, pulling the lower jaw forward. For an underbite, they connect from the lower front teeth to the upper back teeth, guiding the lower jaw back. Wearing them inconsistently slows progress significantly or leads to incomplete correction, so compliance is a major factor in how well this approach works.
Treatment duration varies widely. Simple tooth-level corrections might take 12 to 18 months. Jaw repositioning with elastics often takes closer to two years, sometimes longer if the misalignment is severe.
Surgery for Structural Jaw Misalignment
When the jaw bones themselves are significantly misaligned, orthodontics alone can’t fix the problem. Corrective jaw surgery (orthognathic surgery) physically repositions the bones. There are three main types: upper jaw surgery for when the upper jaw protrudes too much or too little, lower jaw surgery for the same issue in the lower jaw, and double jaw surgery when both need correction.
During the procedure, the surgeon cuts the bone, moves it into the correct position, and secures it with small plates and screws. Most people return to work or school after three to four weeks. Initial recovery takes about six weeks, but full healing, including the bone solidifying in its new position, can take up to a year. Orthodontic treatment almost always accompanies surgery: braces go on before the procedure to align the teeth so they’ll fit together properly once the bones are repositioned, and stay on afterward for fine-tuning.
What About Tongue Posture and “Mewing”?
You may have come across advice about holding your tongue flat against the roof of your mouth to reshape your jaw over time. This is called mewing, and it has a large following online. The proper resting position for the tongue is indeed against the hard palate, with the tip just behind your upper front teeth. Maintaining this posture may help with breathing and swallowing habits.
That said, there are no studies supporting the claim that mewing can widen the palate or change jaw structure in adults. Tongue posture does influence jaw development in growing children, which is why prolonged thumb sucking or mouth breathing can cause misalignment. But once the bones have finished growing, tongue position alone is unlikely to produce structural changes.
What Happens If You Leave It Untreated
Mild misalignment that causes no symptoms doesn’t necessarily need treatment. But significant misalignment tends to create compounding problems over time. TMJ dysfunction occurs in 43% to 73% of people with severe jaw misalignment. An overjet (upper teeth protruding forward) greater than 5 millimeters doubles or triples the risk of traumatic dental injury. Deep bite malocclusions can cause gum damage that leads to irreversible periodontal breakdown.
There are also effects beyond the mouth. People with severe misalignment are more prone to obstructive sleep apnea, particularly as they age, because the jaw position can narrow the airway. Chewing efficiency declines, especially if tooth loss compounds the problem later in life. The earlier misalignment is addressed, the simpler treatment tends to be.