You take a sip of cold water and feel a sharp jolt. Later, one tooth hurts when you bite into dinner. By bedtime, the pain feels strong enough to stop you from sleeping.
You may type “teeth hurt” into Google because you want a fast answer. However, the location, timing, and type of pain often matter more than the pain level alone.
Your teeth may hurt because of decay, an exposed tooth layer, a crack, infection, grinding, gum disease, sinus pressure, damaged dental work, or wisdom tooth trouble. One painful tooth often points to a local dental problem. Pain across several teeth may involve grinding, sensitivity, inflamed gums, or sinus pressure.
At Smile For Miles Dental, we do not guess from one symptom. We check your teeth, gums, bite, and existing dental work to find the source of the pain. Our dentist in Colleyville can then explain what your teeth need.
Quick Pain Clues
| What you notice | Possible cause |
|---|---|
| Pain when biting | Crack, cavity, infection, or bite problem |
| Pain from cold water | Sensitivity, decay, or worn dental work |
| Pain after eating sugar | Decay or an exposed tooth layer |
| Pain at night | Grinding, nerve irritation, or infection |
| Several upper teeth hurt | Sinus pressure or grinding |
| Pain when walking | Sinus pressure or an inflamed tooth |
| Pain after flossing | Gum irritation, trapped food, or decay |
| Throbbing with swelling | Infection or abscess |
These clues can help you describe the problem, but they cannot confirm the cause. A cavity, crack, loose filling, and irritated tooth nerve can sometimes feel similar.
One Tooth or Several?
The number of painful teeth gives us an important clue.
When one tooth hurts, we often check for a cavity, crack, damaged filling, infection, or pressure from your bite. A sharp pain in one exact spot usually points toward a problem in or around that tooth.
When several teeth hurt, grinding, gum inflammation, sensitivity, or sinus pressure may play a larger role. Still, one infected tooth can sometimes send pain into nearby areas.
At Smile For Miles Dental, we ask when the pain starts, what triggers it, and how long it lasts. Those details help us narrow down why your teeth hurt.
1. Tooth Decay
Tooth decay can make one tooth hurt when you eat sweets, drink something cold, or chew on that side.
Plaque bacteria use sugar and starch from food to produce acids. Those acids weaken the outer enamel and can eventually create a cavity. Once decay reaches the sensitive layer below the enamel, cold drinks, sweets, or pressure may trigger pain.
You may notice:
- Pain after eating sugar
- Cold sensitivity
- Food catching in one area
- Pain when chewing
- A rough or dark spot
- Pain that becomes more frequent
A small cavity may not hurt at first. Waiting for severe pain can allow the decay to reach deeper parts of the tooth.
What to do: Schedule a dental examination if the pain returns or gets stronger. We may repair smaller areas of decay with dental fillings before the tooth needs more complex treatment.
2. Exposed Tooth Layer
An exposed sensitive layer can explain why your teeth hurt after cold water, sweet foods, brushing, or a blast of cold air.
Enamel covers the visible part of your tooth. Beneath it sits dentin, a softer layer with tiny channels that carry temperature changes toward the nerve.
Gum recession, enamel wear, cracks, decay, or worn fillings can expose this sensitive area. The ADA lists decay, fractured teeth, worn fillings, gum disease, worn enamel, and exposed roots among common causes of tooth sensitivity.
Sensitivity often feels like:
- A quick, sharp jolt
- Pain near the gumline
- Discomfort from cold drinks
- Pain from sweet or acidic foods
- Sensitivity during brushing
What to do: Use a soft toothbrush and avoid aggressive scrubbing. Toothpaste for sensitive teeth may help mild symptoms, but it cannot repair a cavity, crack, or loose filling. Ask us to check sensitivity that persists, worsens, or affects one specific tooth.
3. Cracked Tooth
A cracked tooth may hurt when you bite down because chewing pressure makes the cracked sections move slightly.
Pain often feels sharp and sudden. In some cases, the tooth hurts more when you release your bite than when you first bite down. The discomfort may also come and go, which can make the problem difficult to locate.
The ADA notes that cracks can remain hard to see, yet they may cause severe pain during chewing.
Possible warning signs include:
- Pain when pressure touches one tooth
- Sharp pain when releasing your bite
- Cold sensitivity in one spot
- Pain that comes and goes
- A recent bite on ice or hard food
- A large filling in the painful tooth
What to do: Stop chewing on that side. Avoid hard and sticky foods, and do not keep testing the tooth by biting repeatedly.
Treatment depends on the crack’s size and location. Our restorative dentistry options can help protect and repair damaged teeth when possible.
4. Tooth Infection
A dental infection can cause constant, throbbing pain that gets worse at night or when you lie down.
Deep decay, cracks, or damaged dental work can allow bacteria to reach the soft center of the tooth. The infection may then irritate the nerve and create pressure around the tooth or root.
A tooth abscess can cause pain, swelling, fever, and tenderness.
Watch for:
- Throbbing pain
- Pain that wakes you up
- Lingering hot or cold pain
- Swollen gums
- A bump on the gum
- A foul taste
- Facial swelling
- Fever
What to do: Call us promptly when pain throbs, spreads, or comes with swelling. Pain medicine may reduce discomfort, but it cannot remove decay, clean an infected tooth, or repair a crack.
Depending on the damage, treatment may involve drainage, a filling, a crown, an extraction, or root canal care. Our article explains the signs you may need root canal therapy without repeating the full treatment process here.
5. Teeth Grinding
Grinding and clenching can make several teeth hurt at once, especially in the morning.
Repeated pressure strains your teeth, jaw muscles, and supporting tissues. Over time, grinding may wear the enamel, damage fillings, increase sensitivity, or contribute to cracks.
Many people clench during stressful moments or grind while asleep without noticing. NIDCR lists damaged teeth, jaw pain, tired jaw muscles, and headaches among possible signs of severe grinding.
You may notice:
- Several sore teeth
- Morning jaw tightness
- Headaches after waking
- Flattened tooth edges
- Small chips or cracks
- Cheek or temple soreness
- Pain after stressful days
What to do: Notice when you clench during the day and relax your jaw. Your teeth should rest slightly apart when you do not eat.
At Smile For Miles Dental, we can examine your bite and tooth wear. A custom night guard may help protect your teeth when sleep grinding causes the pain.
6. Gum Disease
Gum disease can make your teeth feel sore, sensitive, or painful when you chew.
Plaque can irritate the gums around your teeth. Without treatment, advanced gum disease may damage the tissue and bone that support your teeth. NIDCR lists bleeding gums, painful chewing, loose teeth, and sensitivity among possible signs.
Common symptoms include:
- Bleeding while brushing
- Pain after flossing
- Red or swollen gums
- Gum recession
- Persistent bad breath
- Sensitivity near the gums
- Pain while chewing
- Teeth that feel loose
One sore spot after flossing does not always mean gum disease. The floss may have irritated the gum, or food may have become trapped between the teeth.
What to do: Keep brushing gently and clean between your teeth each day. Contact us when bleeding continues, gums pull away from your teeth, or several teeth start to hurt.
7. Sinus Pressure
Sinus pressure can make several upper back teeth hurt even when those teeth remain healthy.
Your upper molars sit close to the sinuses above them. Swelling and pressure in that area can create pain that feels like a toothache. MedlinePlus includes toothache, facial pressure, and pain around the eyes among possible sinusitis symptoms.
Sinus-related tooth pain often comes with:
- Nasal congestion
- Facial pressure
- Headaches
- Pressure below the eyes
- Pain when bending forward
- Pain when walking
- Pain when shaking your head
- Several upper teeth aching together
What to do: A medical provider can help when congestion, facial pressure, or other sinus symptoms dominate. Contact us when one exact tooth hurts, chewing triggers the pain, or discomfort continues after the sinus symptoms improve.
8. Damaged Dental Work
A loose filling, cracked crown, or uneven bite can make a tooth hurt under pressure.
Fillings and crowns handle strong chewing forces every day. Over time, they may wear, loosen, crack, or develop gaps around their edges. New decay can also start beside older dental work.
A recent filling may cause pain when it sits slightly higher than the rest of your bite. In that case, the treated tooth may hit first whenever you close your mouth.
You may notice:
- One tooth hits first
- Your bite feels uneven
- A filling feels loose or rough
- Food catches beside a crown
- Cold sensitivity starts near old dental work
- Pain appears during chewing
- Part of a filling or crown breaks
What to do: Avoid chewing on that side and do not use household glue on a loose crown.
Our article about tooth pain after a filling explains when mild sensitivity may settle and when the tooth needs another examination.
9. Wisdom Tooth Trouble
Wisdom tooth problems can make the back of your mouth hurt and cause pressure behind your last molar.
A wisdom tooth may grow at an angle, remain under the gum, or only emerge partly. Food and bacteria can collect around a partly erupted tooth and irritate the nearby gum.
The ADA notes that wisdom tooth problems may cause pain, swelling, infection, and jaw stiffness. (MouthHealthy)
Possible signs include:
- Pain behind the last molar
- Swollen gum tissue
- Jaw stiffness
- Difficulty opening your mouth
- Food trapping at the back
- Bad breath
- An unpleasant taste
- Pain that spreads toward the ear
What to do: Brush the area gently and rinse with warm salt water. Recurring swelling, jaw stiffness, or a foul taste needs a dental examination.
We may use an X-ray to check the tooth’s position and determine whether cleaning, treatment, monitoring, or removal makes sense.
When Pain Is Urgent
Some causes of tooth pain can wait for a normal appointment. Others need prompt attention.
Contact our emergency dentist in Colleyville when you experience:
- Severe or rapidly worsening pain
- Facial or jaw swelling
- Fever with tooth pain
- Pus or a foul taste
- A broken or knocked-out tooth
- Bleeding that will not stop
- Pain that prevents sleep or eating
- Swelling after an injury
Seek emergency medical help when swelling affects your breathing or swallowing or spreads toward your eye or neck.
The ADA recommends prompt care for serious tooth injuries, severe pain, uncontrolled bleeding, and knocked-out permanent teeth.
How We Find It
We do not diagnose tooth pain from one symptom alone.
At Smile For Miles Dental, we may:
- Ask when the pain started
- Check whether one tooth or several teeth hurt
- Test your bite
- Look for cavities and cracks
- Examine fillings and crowns
- Check your gums
- Test temperature response
- Apply gentle pressure
- Review your jaw movement
- Take dental X-rays when needed
This process helps us separate problems that can feel similar. A crack, cavity, high filling, infected nerve, gum problem, and sinus issue each need a different response.
Our Colleyville office offers dental examinations, digital X-rays, restorative care, root canals, fillings, and emergency dentistry.
What You Can Do
Home care may help you stay comfortable until your appointment. However, it cannot repair decay, cracks, loose fillings, or infections.
You can:
- Avoid chewing on the painful side
- Choose softer foods
- Avoid very hot or cold drinks
- Rinse gently with warm salt water
- Brush and floss carefully
- Follow the label on any over-the-counter pain medicine
- Place a cold pack outside your cheek after an injury
Do not place aspirin directly on your tooth or gum. The ADA warns that aspirin can irritate or burn gum tissue.
Regular examinations, cleanings, brushing, and flossing can also help you catch problems before they turn into more severe pain. Learn more about preventive dentistry and the everyday habits that support healthier teeth.
We Know Your Teeth
You do not need to keep guessing why your teeth hurt. At Smile For Miles Dental, we check the tooth, gums, bite, and nearby tissues so we can explain what is happening and recommend the right next step.
We know what your teeth need. Book an appointment.
FAQs
Why do all my teeth hurt?
Grinding, widespread sensitivity, gum inflammation, or sinus pressure can make several teeth hurt together. We need to examine the pain pattern before we can identify the cause.
Why does one tooth hurt?
One painful tooth may have decay, a crack, an infection, a damaged filling, or extra bite pressure. Pain from chewing, cold, heat, or sweets can provide useful clues.
Why does biting hurt?
A tooth may hurt when you bite because of a crack, cavity, infection, loose filling, or uneven bite. Stop chewing on that side if pressure causes sharp pain.
Can teeth hurt without cavities?
Yes. Cracks, grinding, gum recession, sinus pressure, infections, exposed roots, and damaged dental work can all make teeth hurt without an obvious cavity.
Can sinus pressure hurt teeth?
Yes. Sinus pressure can create a dull ache across several upper back teeth. Nasal congestion and facial pressure often occur at the same time.
Can tooth pain disappear?
Tooth pain may fade for a while, but the underlying problem may remain. Recurring, severe, or unexplained pain still needs a dental examination.
