Most toothaches come from decay, a cracked tooth, gum infection or an erupting wisdom tooth. A rinse with warm salt water, a cold compress and a standard over-the-counter painkiller can ease pain for a day, but they do not fix the cause. Book a dental visit within 1–2 days. Go the same day if you have swelling, fever, pus or pain that keeps you awake.
What your type of pain is telling you
The way a tooth hurts gives your dentist an important clue. Use the table below as a rough guide only. It cannot replace an examination and an X-ray.
| Type of pain | Likely cause | What usually helps |
|---|---|---|
| Short, sharp zing with cold, hot or sweet | Sensitive tooth, exposed root, early cavity | Desensitising treatment, filling, correcting brushing habits |
| Pain that lingers for a minute or more after hot or cold | Inflamed tooth nerve (pulpitis) | Deep filling or root canal treatment |
| Throbbing pain without any trigger, worse at night | Deep infection of the nerve or an abscess | Urgent root canal, drainage or extraction |
| Pain on biting or chewing | Cracked tooth, high filling, infection at the root tip | Bite adjustment, crown or root canal |
| Swollen, bleeding or pus-filled gum | Gum infection or abscess | Deep cleaning, drainage, treatment of the tooth |
| Pain or swelling at the back of the jaw | Partly erupted wisdom tooth (pericoronitis) | Cleaning under the gum flap, medication or extraction |
| Dull ache in several upper teeth, worse when bending forward | Sinus infection referring pain to the teeth | Medical treatment of the sinus after a dental check |
| Jaw and tooth ache in the morning, clicking jaw | Teeth grinding (bruxism) or jaw joint strain | Night guard, stress and habit management |
Common causes of tooth pain
1. Tooth decay (cavities)
Bacteria turn sugar into acid, which dissolves enamel and then the softer dentine beneath. A small cavity often causes no pain. Once decay nears the nerve, sensitivity to sweets and temperature begins, and later constant pain. Cavities are the single most common reason people visit a dentist with toothache.
2. Cracked or fractured tooth
Chewing hard items such as ice, supari or bones, or biting on a large old filling, can crack a tooth. The typical sign is a sudden sharp pain when you bite and release. Cracks can be hard to see, so an examination with magnification and sometimes an X-ray is needed.
3. Nerve infection and abscess
When decay or a crack lets bacteria reach the pulp (the nerve and blood supply inside the tooth), the tooth becomes inflamed and may later become infected. Pus can collect at the root tip as an abscess, causing throbbing pain, a bad taste and gum swelling.
4. Gum disease
Plaque and tartar that collect along the gum line cause inflammation, bleeding and, in advanced cases, a gum abscess or loose teeth. Smokers and tobacco or paan chewers are at higher risk.
5. Sensitive teeth
Worn enamel or receding gums expose the root surface, which has tiny channels leading to the nerve. Aggressive brushing, acidic drinks and grinding all contribute.
6. Wisdom tooth problems
Third molars often lack space. When one is stuck or only partly through the gum, food and bacteria collect under the flap of gum, causing pain, swelling and difficulty opening the mouth.
7. Pain that is not from the tooth
Sinusitis, jaw joint problems and, less commonly, ear or heart conditions can be felt as tooth or jaw pain. A dentist can help tell these apart. Jaw or tooth pain together with chest discomfort, sweating or breathlessness needs emergency medical care.
Safe home relief (for a day or two)
These steps are only to keep you comfortable until you can see a dentist.
What you can do
- Rinse gently with warm water mixed with half a teaspoon of salt. Repeat 2–3 times a day.
- Floss carefully to remove any food stuck between the teeth.
- Apply a cold pack on the cheek for 15 minutes at a time if the area is swollen.
- Take an over-the-counter painkiller such as paracetamol or ibuprofen, exactly as the label says.
- Sleep with your head slightly raised on an extra pillow.
- Chew on the opposite side and choose soft, lukewarm food.
What to avoid
- Do not place aspirin or any tablet on the tooth or gum. It burns the tissue.
- Do not apply heat to a swollen cheek. It can spread infection.
- Do not squeeze or pierce a swelling yourself.
- Avoid very hot, cold, sweet or hard foods, and avoid tobacco and alcohol.
- Do not start leftover antibiotics without a dentist's advice.
A tiny amount of diluted clove oil on cotton can numb a tooth briefly, but undiluted oil can burn the gum and cheek. Use it sparingly, keep it off the gums, and do not use it in young children.
Ask a doctor first if you are pregnant, have a stomach ulcer, kidney or liver disease, asthma, or if you are allergic to these medicines. Do not give ibuprofen or aspirin to children without medical advice.
Warning signs: do not wait
- Swelling of the face, jaw, neck or under the eye
- Fever with a toothache
- Difficulty swallowing, opening the mouth or breathing (go to a hospital emergency straight away)
- Pus, a bad taste or a pimple-like bump on the gum
- Severe pain after an injury or a knocked-out tooth
- A mouth ulcer, or a white or red patch, that has not healed in 2 weeks (this needs an oral cancer screening, not just home care)
Dental infections can spread to the face and neck in some cases. Early treatment is simpler, faster and more affordable than treating a spread infection.
What happens at the dental visit
- Talk and history You describe the pain: when it started, what triggers it, and how long it lasts. Tell the dentist about any medicines and health conditions.
- Examination The dentist checks the teeth, gums, bite and jaw, and taps or tests the painful tooth with cold and pressure.
- X-ray A small digital X-ray (RVG or OPG) shows decay under the surface, bone loss and infection at the root tip. Digital X-rays use a low radiation dose.
- Diagnosis and plan The cause is explained in plain language, along with your options, the number of visits and the cost, before any treatment starts.
- Pain relief first Treatment is done under local anaesthesia so the procedure itself is comfortable.
Treatment options
The right treatment depends entirely on the cause, which is why guessing at home often delays proper care.
| Treatment | Used for | Typical visits |
|---|---|---|
| Filling | Cavities that have not reached the nerve | Usually 1 |
| Desensitising treatment | Sensitive teeth and exposed roots | 1 or more |
| Root canal treatment (RCT) with crown | Deep decay, nerve infection, abscess, some cracked teeth | 1–2 for the root canal, then a crown |
| Scaling and deep cleaning | Gum disease, bleeding and swollen gums | 1–2 |
| Extraction | Teeth that cannot be saved, problem wisdom teeth | Usually 1 |
| Night guard | Grinding and clenching | 2 (impression and fitting) |
Treatment cost depends on the tooth, the cause and the material chosen, so a fair figure can only be given after an examination. Ask for a clear written plan before you begin.
How to prevent toothache
- Brush twice a day for two minutes with a fluoride toothpaste, using a soft brush and gentle strokes.
- Clean between the teeth daily with floss or interdental brushes.
- Limit sugary snacks, sweet tea and cold drinks between meals. Frequency matters more than quantity.
- Do not chew ice, bottle caps or hard packaging. Avoid tobacco, gutkha and supari.
- Have a check-up and professional cleaning every 6 months. Small cavities are found before they hurt.
- Wear a mouth guard if you play contact sports or grind your teeth at night.
Toothache treatment in Kanpur: Kidwai Nagar, Naubasta, Sastri Nagar and Yashoda Nagar
Dr. Abhishek Pal has over 10 years of clinical experience and holds a BDS with a focus on oral medicine and radiology. At Dr. Abhishek Dental & Oral Cancer Centre, patients with toothache are examined, X-rayed and treated with painless root canal treatment, fillings, gum treatment, extractions and laser-assisted procedures where suitable. Same-day emergency appointments are available for severe pain.
The clinic is on Hamirpur Road near Metro Pillar 68 and is convenient for patients from:
- Naubasta
- Kidwai Nagar
- Sastri Nagar
- Yashoda Nagar
- Saket Nagar
- Juhi Kalan
- Barra
- Other areas of Kanpur
Toothache that won't settle?
Do not wait for the pain to become an emergency. Call or message us and we will find the earliest appointment for you.
Frequently asked questions
Can tooth pain go away on its own?
Pain from mild sensitivity or gum irritation can settle in a few days. Pain from a cavity, crack or infection will not heal by itself. If the pain suddenly stops, the nerve inside the tooth may have died while the infection continues, so the tooth still needs to be examined.
Why does tooth pain get worse at night?
When you lie flat, more blood flows to your head, which raises pressure inside an already inflamed tooth. There are also fewer distractions at night, so the pain is more noticeable. Night-time throbbing usually points to an inflamed or infected nerve and should be checked soon.
Is it safe to take a painkiller for a toothache?
Over-the-counter painkillers such as paracetamol or ibuprofen can give temporary relief when taken as per the label. They do not treat the cause. People with stomach ulcers, kidney disease, asthma, pregnancy or allergies to these medicines should ask a doctor first. Never place a tablet directly on the gum or tooth.
Do I always need a root canal for a severe toothache?
No. The treatment depends on the cause. A cavity may need only a filling, gum pain may need deep cleaning, and a cracked tooth may need a crown. A root canal is advised when the nerve of the tooth is deeply inflamed or infected and the tooth can be saved.
Can antibiotics alone cure a toothache?
Antibiotics may be prescribed if infection is spreading, but they rarely cure the source of the problem. The infected tissue usually needs to be removed through a root canal, drainage or extraction.
Where can I get toothache treatment near Kidwai Nagar, Naubasta, Sastri Nagar or Yashoda Nagar in Kanpur?
Dr. Abhishek Dental & Oral Cancer Centre is at Subhash Commercial Complex, Naubasta, Plot no 34, Hamirpur Road, near Metro Pillar 68, Juhi Kalan, Saket Nagar, Kanpur 208014. It is open Monday to Saturday 9 AM to 8 PM and Sunday 9 AM to 9 PM. Call +91-6391-423-669 to book.
This article is for general education and is not a substitute for a dental examination or personal medical advice. If you have swelling, fever or trouble breathing or swallowing, seek emergency care immediately.