Answered by Dr. Sophie Kim, Secure Dental in Moline, Illinois

“Pain that only happens when you bite is actually a useful clue. It often tells us that something changes when pressure is placed on the tooth. That could be a crack, decay, a loose filling, inflammation inside the tooth, or a problem with how the tooth is contacting the one above or below it.”

One of the biggest mistakes patients make is assuming that because the tooth feels fine when they are not eating, the problem cannot be serious.

That is not always true.

A tooth that hurts when chewing deserves an examination, especially when the pain repeatedly occurs in the same spot. The American Association of Endodontists identifies sharp pain when biting as a symptom that can be associated with decay, a loose filling, a cracked tooth, or damage to the pulp inside the tooth.

Why Does My Tooth Hurt When I Bite Down?

There are several possibilities, and they can feel surprisingly similar from the patient’s perspective.

That is why I would rather examine the tooth than have someone try to diagnose it based only on where it hurts.

A Cracked Tooth

A crack is one of the first things we consider when a patient tells us, “It only hurts when I chew.”

Cracked teeth can cause unpredictable pain during chewing, sometimes when you first bite down and sometimes when you release the pressure. They may also become sensitive to cold or hot temperatures.

The reason is mechanical.

When you bite on a cracked tooth, the sections on either side of the crack may move slightly. That movement can irritate the pulp, which is the soft tissue containing the nerves and blood vessels inside the tooth.

When you stop biting, the pieces move again. That is why some patients describe a quick, sharp “zing” rather than a constant toothache.

Cracks can be frustrating because they are not always obvious. A crack may be extremely thin, may run vertically through the tooth, and may not appear clearly on a traditional dental X-ray. Diagnosis often involves combining your symptoms with the clinical examination and appropriate imaging.

The earlier a significant crack is diagnosed, the better the chance of preventing it from progressing.

Could It Just Be a Cavity?

Yes.

Decay weakens tooth structure. Once a cavity becomes large enough, biting pressure may cause discomfort even when the tooth does not ache throughout the rest of the day.

Decay can also get close enough to the pulp that the nerve inside the tooth becomes inflamed.

You may notice additional symptoms such as:

• Sensitivity to sweets
• Cold sensitivity
• Food repeatedly getting caught around the tooth
• A rough or broken area
• Dark discoloration
• Increasing pain over time

A smaller cavity may be treatable with a filling. A tooth that has lost more structure may require a crown. If decay has reached the pulp and caused irreversible inflammation or infection, root canal treatment may be necessary.

That is why the same symptom can lead to very different treatments depending on what we find.

What If I Have an Old Filling?

An older filling can also be responsible for pain when chewing.

Fillings are exposed to thousands of chewing cycles. Over time, the filling itself may fracture, the tooth around it may crack, or decay may develop around or underneath the restoration.

A loose filling can allow movement when you bite. It may also create an opening where bacteria and food can enter.

Secure Dental’s Moline emergency dentistry services specifically include treatment for loose or broken fillings, broken crowns, cracked teeth, severe tooth pain, and dental infections.

Replacing the filling may be enough when the remaining tooth is strong.

If a large portion of the tooth has been weakened, a crown may provide better protection.

Could the Nerve Inside My Tooth Be the Problem?

Yes.

The pulp is the living tissue inside the tooth. Deep decay, cracks, trauma, or problems around an existing restoration can cause that tissue to become inflamed or infected.

Pain while biting is one possible sign that the pulp has been damaged. Other symptoms may include lingering sensitivity to heat or cold, spontaneous throbbing, swollen gums, or a small bump on the gum near the tooth.

When the pulp cannot recover, root canal therapy may allow us to remove the diseased tissue while preserving the rest of the natural tooth.

If you are worried about what that treatment involves, our related Ask Secure Dental article, “Do Root Canals Actually Hurt?”, explains what modern root canal treatment actually feels like.

What If the Pain Started After a New Filling or Crown?

Tell your dentist.

Some temporary sensitivity can occur after dental treatment because the tooth has recently been worked on. The American Association of Endodontists notes that temperature sensitivity after dental treatment can sometimes result from temporary pulp inflammation.

Pain specifically when your teeth come together may also mean a new restoration is contacting the opposing tooth differently than expected.

Imagine one chair leg being slightly longer than the others. Every time pressure is placed on the chair, that one leg receives more force.

A tooth can experience something similar.

A dentist can check the way your teeth contact and determine whether the restoration requires adjustment or whether the pain is coming from something deeper inside the tooth.

Do not try to “wear it down” by repeatedly chewing on the painful side.

Could Teeth Grinding Cause Pain When I Chew?

It can.

Grinding and clenching repeatedly load the teeth and can contribute to worn enamel, cracks, tooth sensitivity, damaged restorations, and sore jaw muscles.

You might also notice:

• Morning jaw soreness
• Headaches near the temples
• Flattened tooth edges
• Small chips
• Sensitive teeth
• Crowns or fillings that repeatedly break

Our related guide, “I Grind My Teeth at Night. Is That Actually Damaging Them?”, explains how bruxism is diagnosed and when a night guard may be useful.

When Is Pain While Biting a Dental Emergency?

Not every painful bite means you need to leave work immediately and race to the dental office.

But it should not be ignored.

Contact a dentist promptly when the pain is persistent, worsening, or preventing you from eating normally.

Seek more urgent dental care when biting pain occurs with:

• Facial or gum swelling
• Severe or constant tooth pain
• Fever
• Drainage or a bad taste near the tooth
• A visibly broken tooth
• A loose permanent tooth
• A crown or filling that has fallen out
• Trauma to the mouth
• Increasing difficulty opening your mouth

Secure Dental’s Moline office advises patients experiencing a dental emergency to contact the office promptly, noting that untreated dental emergencies can become more painful and more damaging over time.

Severe or rapidly increasing facial or neck swelling, particularly when it affects breathing or swallowing, requires emergency medical care.

Can Tooth Pain When Biting Go Away on Its Own?

Sometimes the symptom decreases temporarily.

That does not necessarily mean the underlying problem disappeared.

Inflammation may settle down. You may subconsciously stop chewing on that tooth. A crack may only move when you bite at a particular angle.

Pain that comes and goes is actually common with cracked teeth.

If the same tooth repeatedly hurts when you chew, schedule an examination rather than waiting for the pain to become constant.

Can an X-Ray Show a Cracked Tooth?

Sometimes imaging provides important clues, but cracks can be difficult to detect.

Some cracks are so thin that they are not visible on a standard dental X-ray. A dentist may need to combine imaging with biting tests, magnification, evaluation of the gums around the tooth, and other clinical findings.

X-rays can still be extremely useful for identifying other causes of biting pain, including decay, changes around the tooth root, bone loss, and problems involving previous dental treatment.

The important point is that an X-ray is one part of the examination, not the entire diagnosis.

Does Pain When Biting Mean I Need a Root Canal?

No.

Some painful teeth need only a filling, crown, adjustment, or other restorative treatment.

A root canal becomes appropriate when the pulp inside the tooth is irreversibly inflamed or infected and the tooth can still be saved. Severe pain with chewing or biting can be one symptom, but the diagnosis is based on the complete examination rather than that symptom alone.

If the tooth is cracked beyond the point where it can be predictably restored, extraction may sometimes be necessary.

The goal is always to understand the problem before choosing the procedure.

What Will Secure Dental Check?

At Secure Dental in Moline, your evaluation may include:

• Asking exactly when the tooth hurts
• Checking for visible cracks or broken restorations
• Testing the tooth with controlled biting pressure
• Evaluating sensitivity
• Examining the gums around the tooth
• Checking existing fillings or crowns
• Looking at how your teeth contact
• Taking dental X-rays when appropriate
• Determining whether the pulp appears healthy, inflamed, or infected

The Moline office offers emergency dentistry, restorative dentistry, root canal therapy, and oral surgery, which means the next step can be based on what the examination actually shows.

What Should I Do Until My Appointment?

Try to avoid chewing hard foods on the painful tooth.

Choose softer foods and chew on the opposite side when possible. Avoid repeatedly testing the tooth by biting on it to see whether it still hurts.

If over-the-counter pain medication is normally safe for you, follow the package instructions or the advice of your medical or dental provider. Do not place aspirin directly against the tooth or gum.

Most importantly, do not let the disappearance of pain convince you that an examination is unnecessary when the symptom has been recurring.

Find Out Why Your Tooth Hurts When You Bite

Pain when chewing is not a diagnosis. It is a signal.

A cracked tooth, cavity, loose filling, damaged pulp, grinding habit, or bite problem can all produce similar symptoms, and treatment depends on identifying which one is actually happening.

Request an appointment with Dr. Sophie Kim at Secure Dental in Moline, located at 4601 16th Street, Suite 12, Moline, Illinois 61265.

Call (309) 797-0888 or visit the Secure Dental Moline location page to request your appointment. Secure Dental currently lists Dr. Sophie Kim and Dr. Sangin Lim as the associate dentists at its Moline office.

Ask Your Own Question

Have a dental question you would like a Secure Dental doctor to answer?

About Dr. Sophie Kim

Answered by Dr. Kevin Lee, Secure Dental in East Peoria, Illinois

“Jaw pain sends a lot of people to the wrong provider first. Some patients assume it is an ear problem. Others think it is only stress. The truth is that jaw pain can come from the teeth, chewing muscles, jaw joints, wisdom teeth, or a condition that is not dental at all.”

The location of the discomfort does not always reveal its cause. Pain from a tooth can spread toward the ear or jaw. Tight chewing muscles can cause headaches. A jaw-joint problem may feel like an earache even when the ear itself is healthy.

A dental examination is often a practical place to start when jaw pain occurs with tooth sensitivity, pain while chewing, grinding, jaw clicking, facial swelling, or a change in your bite.

What Dental Problems Can Cause Jaw Pain?

Several dental and oral conditions can create pain around the jaw.

Teeth Grinding and Clenching

Bruxism is the habit of grinding, clenching, or bracing the teeth and jaw. It can happen while you are awake or asleep.

You may wake up with tight jaw muscles, facial fatigue, temple headaches, or sensitive teeth. Over time, grinding can flatten enamel, crack teeth, and damage fillings, crowns, or veneers.

Stress may increase daytime clenching, although sleep bruxism can involve additional factors. Our related guide, “I Grind My Teeth at Night. Is That Actually Damaging Them?”, explains the warning signs and how a custom night guard may help protect your teeth.

A Cracked, Decayed, or Infected Tooth

A deep cavity, cracked tooth, or dental abscess can create pain that spreads into the jaw.

Dental infection may also cause pain while biting, temperature sensitivity, swollen gums, a bad taste, fever, or swelling of the face or jaw. Jaw swelling associated with a dental abscess is a serious symptom and should be evaluated promptly.

Severe swelling, trouble breathing, difficulty swallowing, drooling, or rapidly increasing neck or facial swelling requires emergency medical attention.

Impacted Wisdom Teeth

Wisdom teeth can cause discomfort when they do not have enough room to erupt normally or when gum tissue around a partially erupted tooth becomes inflamed.

Possible symptoms include pain near the back of the jaw, swollen gums, difficulty opening the mouth, an unpleasant taste, or discomfort that spreads toward the ear.

Secure Dental’s East Peoria office provides routine and surgical tooth extractions when removal is appropriate.

A Recent Filling or Crown That Feels Too High

A restoration that contacts the opposing tooth too early may cause discomfort when biting or make the jaw muscles work differently.

This is different from claiming that an ordinary imperfect bite causes chronic TMJ problems. Current research does not support the idea that a “bad bite” or braces routinely cause temporomandibular disorders.

When the discomfort began immediately after a filling or crown, a dentist can check whether that specific restoration needs a minor adjustment.

What Is TMJ?

TMJ stands for temporomandibular joint. You have one of these joints on each side of your head, just in front of your ears. They connect the lower jaw to the skull and allow you to speak, chew, and open or close your mouth.

The condition is more accurately called a temporomandibular disorder, or TMD. TMD is not one single disease. It is a group of more than 30 conditions involving the jaw joints, chewing muscles, and related tissues.

Possible TMJ or TMD symptoms include:

• Pain in the jaw joint or chewing muscles
• Pain that spreads into the face or neck
• Jaw stiffness
• Limited opening
• A jaw that locks open or closed
• Painful clicking, popping, or grinding
• Headaches associated with jaw movement
• A change in how the teeth meet

Clicking without pain is common and usually does not require treatment. Painful clicking, locking, or difficulty opening the mouth deserves an evaluation.

Can Stress Cause Jaw Pain?

Yes, stress can contribute to jaw-muscle tension and daytime clenching.

Some people hold their teeth together while concentrating, driving, exercising, or responding to stressful situations. The chewing muscles remain active even though the person is not eating, which can lead to fatigue and soreness.

A relaxed resting position usually involves keeping your lips together while allowing your upper and lower teeth to remain slightly apart.

Stress management may help, but jaw pain should not automatically be dismissed as anxiety. A dentist should still check for tooth damage, infection, grinding, and joint or muscle problems.

When Is Jaw Pain Not a Dental Problem?

Jaw and facial pain can come from conditions outside the teeth and jaw joints.

Possible non-dental causes include:

• Ear conditions
• Sinus inflammation
• Salivary gland problems
• Headache disorders
• Nerve pain
• Arthritis or another joint condition
• Neck or muscle problems
• Certain heart conditions

Your dentist may recommend evaluation by a primary care physician, ear, nose, and throat specialist, neurologist, physical therapist, oral surgeon, sleep physician, or orofacial pain specialist depending on the symptoms.

Know the Heart-Attack Warning Signs

Jaw discomfort can sometimes occur during a heart attack, particularly when it appears with chest pressure, shortness of breath, sweating, nausea, lightheadedness, unusual fatigue, or pain in an arm, the neck, back, or stomach.

Call 911 rather than contacting a dental office when jaw pain occurs with possible heart-attack symptoms. The American Heart Association advises calling emergency services even when you are unsure.

What Does a Secure Dental Jaw-Pain Examination Include?

At Secure Dental in East Peoria, we begin by asking where the pain occurs, when it started, what triggers it, and whether it spreads.

Your examination may include:

• Checking the teeth for decay, cracks, wear, and infection
• Testing painful teeth when appropriate
• Examining the gums and wisdom-tooth areas
• Feeling the jaw joints and chewing muscles
• Listening for clicking, popping, or grinding
• Measuring how widely and smoothly the jaw opens
• Evaluating how the teeth contact
• Reviewing headaches, grinding, snoring, and sleep symptoms
• Taking dental X-rays when needed

The East Peoria office also provides a 3D smile assessment that can track tooth wear and display how forces are distributed across the bite. Traditional X-rays remain useful because they show the roots, bone, and structures below the visible tooth surface.

There is no single test that diagnoses every TMD. Jaw pain sometimes requires ruling out several possible causes before the correct treatment becomes clear.

How Is Jaw Pain Treated?

Treatment depends on the cause.

Custom Night Guards

A custom night guard may be recommended when grinding is damaging the teeth or contributing to muscle soreness.

The appliance creates a protective barrier between the teeth. It does not guarantee that grinding will stop, and evidence that night guards relieve every type of TMD pain is limited. The appliance should not be designed to permanently change your bite.

Conservative Home Care

Many short-term jaw-joint and muscle symptoms improve with simple measures such as:

• Temporarily choosing softer foods
• Avoiding gum chewing
• Reducing nail biting and clenching
• Applying heat or cold as directed
• Performing gentle jaw exercises recommended by a clinician
• Using appropriate over-the-counter medication after checking that it is safe for you

Physical Therapy or Medical Referral

Physical therapy may help improve jaw movement and reduce muscle pain. Persistent headaches, nerve-like pain, suspected sleep apnea, arthritis, ear symptoms, or complex joint problems may require referral to another healthcare professional.

Bite Adjustment

A small adjustment may help when one new filling or crown is clearly contacting too heavily.

Permanent reshaping of multiple healthy teeth is not a routine first-line treatment for unexplained TMD. The National Institute of Dental and Craniofacial Research recommends beginning with simple, reversible care and avoiding treatments that permanently change the teeth, bite, or jaw joint unless there is a clearly established reason.

Will Jaw Pain Go Away on Its Own?

Some temporary jaw pain improves with rest and reduced muscle strain. Many TMD symptoms are short-lived and may resolve without extensive treatment.

Schedule an examination when the pain:

• Continues for more than several days
• Keeps returning
• Interferes with eating or sleeping
• Occurs with tooth sensitivity
• Causes limited opening or locking
• Follows a dental procedure
• Is accompanied by swelling
• Is becoming progressively worse

Do not wait for symptoms to disappear when you have facial swelling, fever, severe tooth pain, difficulty swallowing, breathing problems, or possible heart-attack symptoms.

Is TMJ Treatment Covered by Dental Insurance?

Coverage varies because jaw-pain treatment can fall between dental and medical insurance.

A dental plan may provide benefits for an examination, X-rays, treatment of a damaged tooth, or an occlusal guard. Medical insurance may be involved when care includes physical therapy, imaging of the joint, sleep medicine, or treatment by a medical specialist.

Some plans exclude TMD services or require prior authorization. The East Peoria team can provide procedure information and help review available benefits, but the insurance carrier makes the final coverage decision.

Find Out What Is Causing Your Jaw Pain

Jaw pain that does not go away deserves an examination. The goal is not to label every symptom as TMJ. It is to identify whether the source is a tooth, grinding, a jaw joint, an impacted wisdom tooth, muscle strain, or something that requires medical evaluation.

Request an appointment with Dr. Kevin Lee at Secure Dental, 502 Riverside Drive, East Peoria, Illinois 61611.

Call (309) 606-5008 or visit the Secure Dental East Peoria location page to request an examination.

We will evaluate the dental causes, explain what we find, and recommend a referral when the problem falls outside the dental office.

Ask Your Own Question

Have a dental question you would like a Secure Dental doctor to answer?

About Dr. Kevin Lee

Request an appointment with Dr. Kevin Lee in East Peoria.