Acute toothache can be serious! Don't delay toothache treatment!
Emergency Toothache

Acute toothache can be serious! Don't delay toothache treatment!

Sudden, severe toothache that disturbs sleep may signal decay, gum disease or infection. Learn the common causes and why prompt treatment matters.

No matter how lucky everyone is in life, there will always be occasional tooth pain. We believe that people who have experienced toothache will agree that the pain of toothache is so severe that it can't be described in words but can only be experienced.

If you have ever experienced toothache and don’t know how to deal with it, then you need to first have a deep understanding of what acute toothache is, and how to deal with the root cause of toothache in advance, reduce the frequency and probability of toothache.

Are there any signs of acute toothache?

Generally, the initial toothache only brings occasional mild pain or tingling, and the pain may disappear naturally after a while, so it is often ignored and forgotten, but when it develops into sudden pain and continuous pain for a long time, it means that it has evolved into acute toothache. The pain usually has the following features:

1. The pain is disturbing to sleep, and it seriously affects normal life. Patient may feel like nerves are being squeezed by acupuncture.

2. Just like a Thor hammer in the teeth, it keeps hitting the sore spot and face hard, not only the teeth feel pain, but also the face and head pain.

3. Fever and inflammation.

Acute toothache can be serious! Don't delay toothache treatment!

4. Bad breath and bad breath.

5. The infected tooth may also have pus.

What causes toothache?

The 1st culprit: tooth decay

In the past, many patients have suffered toothache due to tooth decay, which is a very common cause. Usually, the cleaning of the mouth and teeth is not good enough. The bacteria in the mouth will multiply rapidly and massively in the "high-quality" growth environment in the mouth and will also form plaque on the surface of the teeth, and then greedily erode the surface of the teeth -- enamel, eventually causing tooth decay.

The decayed teeth will become extremely sensitive, and the problem of toothache will occur when eating hot, cold, sour, sweet and other irritating foods. If the damage to the tooth goes deep into the pulp, the tooth will be more painful, and because the nerve of the tooth is infected, the pain will be severe and miserable.

Acute toothache can be serious! Don't delay toothache treatment!

The 2nd culprit: periodontal disease

Periodontal disease itself is not painful for the patient. However, due to the nasty periodontal disease that causes the tooth to loosen, etc., the tooth will feel pain. In addition, swollen gums and pus caused by periodontal disease can also indirectly lead to toothache.

The 3rdculprit: toothache caused by wisdom teeth

When the wisdom teeth grow in the wrong position or grow horizontally, there is a high chance of causing pericoronitis or cysts, which will make the patient feel pain. If the growth of wisdom teeth causes the teeth to be densely arranged and cannot be cleaned thoroughly, food and bacteria remaining in the space between the teeth will also cause inflammation of the tooth tissue, or inflammation of the gums, causing toothache to the patient.

Acute toothache can be serious! Don't delay toothache treatment!

The 4th culprit: Cracked teeth

It depends on how severe the cracked tooth is. Some cracked teeth can cause pain when eating and chewing. If the tooth is cracked to the position of the dental nerve, then the pain and numbness will increase rapidly when eating hot, sour, sweet and other irritating food.

The 5th culprit: the pain of implicated by other organizations

If there is inflammation and pain in other parts of the body, such as trigeminal neuralgia or facial neuralgia, it may cause toothache. The causes of these kinds of problems are complex and often need to be judged more carefully, because this kind of situation cannot be solved by treating teeth alone. Dentists must rely on experience to accurately diagnose the disease and comprehensively consider various situations to treat both the symptoms and the root causes.

What are the consequences of ignoring tooth pain?

  1. Not taking dental pain seriously can have serious consequences, such as inflamed tooth sores and potentially other more serious physical problems, including:
  2. The surrounding teeth and bones are also damaged, causing extensive trauma, affecting the ability to eat and chew, and reducing the quality of life.
  3. Oral diseases and bacteria spread to other parts, causing facial swelling or neck pain. Thinking that the pain can be relieved by massage and ignoring the oral pain problem will only make the condition worse.
  4. The most serious case is that bacteria enter the bloodstream and cause sepsis, causing the immune system in the body to react, destroying the function of various organs, and in severe cases, they will face the risk of death.

Don't shy away from the doctor!

No matter whether the patient can endure this kind of pain that penetrates the heart and lungs, if the tooth pain is not dealt with in time and the problem is delayed, it will only lead to more and more serious illness and irreversible consequences. Moreover, the more serious the problem, the greater the cost and difficulty of remedial treatment in the later stage, and the victim is always yourself.

Therefore, if you encounter toothache and inflammation, do not take it lightly, but also pay attention to possible complications, seek medical attention in time, find out the root cause of the problem under the symptoms of toothache, and thoroughly cure it with the correct method. Moreover, general dentists also have methods for immediate pain relief for you, which can at least effectively relieve the pain, and then perform other treatments to cure the problem.

Article Info

First published: 18 February 2021

Last reviewed: August 2026

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FAQ

Frequently Asked Questions

  • How much does toothache treatment cost?

    Treatment cost depends on the underlying cause. A simple filling for tooth decay starts from HK$850, whilst root canal treatment for infected pulp starts from HK$7,000. Wisdom tooth removal starts from HK$3,500 for non-surgical extraction and from HK$6,000 for surgical extraction; periodontal cases vary. The key in an emergency is diagnosing the cause first; delay lets infection spread, raising both difficulty and cost. After a clinical assessment we explain the fee components clearly, and treatment starts only with your consent. WhatsApp us for a personalised quote after a clinical assessment.

  • What should I do if I have sudden severe toothache at night?

    Rinse your mouth with warm salt water and take over-the-counter pain relief if needed. Avoid very hot, cold, or sweet foods. Contact us as soon as possible — acute toothache often signals infection or nerve damage that requires prompt professional treatment to prevent complications.

  • Can toothache go away on its own without treatment?

    Mild pain may temporarily subside, but the underlying problem — whether decay, infection, or gum disease — will not resolve itself. Ignoring toothache can lead to abscesses, bone damage, and tooth loss. Early treatment is always simpler and less costly than waiting until the condition worsens.

  • How long does it take to treat toothache?

    It depends on the cause. A straightforward filling can be completed in one visit, whilst root canal treatment may require two to three appointments. Periodontal disease or wisdom tooth extraction timelines vary. We'll explain the expected treatment plan during your consultation.

  • Is toothache always caused by tooth decay?

    No. Whilst decay is common, toothache can also result from periodontal disease, impacted wisdom teeth, cracked teeth, or even referred pain from trigeminal neuralgia. Accurate diagnosis by a dentist is essential to treat the root cause effectively.

  • Will I need antibiotics for toothache?

    Antibiotics may be prescribed if there is bacterial infection, abscess, or significant swelling. However, they only control infection temporarily — the underlying dental problem must still be treated. Your dentist will assess whether antibiotics are clinically necessary during your examination.

  • Can I prevent toothache from happening again?

    Yes, with good oral hygiene and regular check-ups. Brush twice daily, floss to remove plaque between teeth, and visit your dentist every six months for scaling and early detection of decay or gum disease. Addressing small problems early prevents painful emergencies later.

Still wondering about something? Our team is happy to chat.

Reminder: You have the right to choose a Hong Kong dentist based on your individual needs. We recommend referring to the list of registered dentists published on the official website of the Dental Council of Hong Kong to make a choice best suited to your personal needs. The above content is intended to give you a brief introduction to the nature and effects of the relevant dental procedures, so that you can make informed decisions when choosing a dentist and related treatment options. All treatments have advantages and disadvantages — the key is that you must have a basic understanding of different treatments and procedures and be aware of the associated risks. The above content does not represent the professional opinion or views of any dentist or dental institution. For the sake of your health, please consult your family dentist for formal medical advice.

This article is compiled by the Public Education Team of Home Dental and has been reviewed and approved by the Content Review Committee of Home Dental. The Committee comprises members of our Board of Directors, legal advisors, and relevant professionals, and is responsible for vetting all externally published health education content to ensure it is professional, accurate, relevant to the local context, and regularly updated to meet Hong Kong dental service standards.

This content is originally produced by Home Dental, all rights reserved. Unauthorized reproduction, modification, or publication is prohibited. Violators will bear legal responsibility. For citation or partnership inquiries, please contact our center for written permission.

Last updated: Aug 2026

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