Why Does My Tooth Hurt? 10 Common Causes of Toothache You Shouldn’t Ignore

There is never a convenient time for a toothache to happen. It might start as a dull ache while you’re enjoying dinner or a sharp pain when you sip your morning coffee. Sometimes it disappears just as quickly as it arrived, while other times it lingers and becomes impossible to ignore.

Although not every toothache is an emergency, it’s usually a sign that something isn’t quite right. Understanding what could be causing the pain can help you know when it is time to book a dental appointment.

What Is a Toothache?

A toothache is any pain or discomfort in or around a tooth. It can feel sharp, throbbing, constant or only occur when you’re eating, drinking or biting down. The type of pain does not always reveal the exact cause, which is why a dental examination is often the best way to identify the problem.

Why Does My Tooth Hurt?

Tooth pain can happen for many reasons. It may be something relatively simple, such as a worn filling, or it could be linked to a deeper issue affecting your tooth or the surrounding gums. Here are ten of the common causes of a toothache.

10 Common Causes of Tooth Pain

1. Tooth Decay

One of the common causes of a toothache is tooth decay. As tooth decay progresses, it may extend into the inner layers of the tooth, where the nerves are more sensitive. This can cause discomfort or sensitivity, particularly when consuming sugary foods or hot and cold drinks.

2. Cracked Tooth

Not every crack is easy to spot. Even a small fracture can cause discomfort when you bite down or chew. Some people notice the pain comes and goes, making it difficult to identify the source without a dental examination.

3. Gum Disease

Sore or bleeding gums are not just a gum problem. As gum disease progresses, it can affect the tissues supporting your teeth. Sometimes it causes tenderness or discomfort around the affected area.

4. Dental Abscess

A dental abscess is an infection that develops around a tooth or within the gum. It often causes persistent throbbing pain that may be accompanied by swelling or an unpleasant taste in the mouth. This type of infection should be assessed by a dentist as soon as possible.

5. Wisdom Teeth Problems

In many cases, there isn’t enough room in the mouth for wisdom teeth to erupt into their proper position. When they become impacted or partially emerge through the gums, they can cause pain, swelling or pressure at the back of the mouth.

6. Teeth Grinding

Teeth grinding and jaw clenching often occur unconsciously, with many people doing so while they sleep. Over time, this extra pressure can wear down the teeth. This can lead to jaw soreness, headaches, and tooth sensitivity.

7. Lost Filling or Crown

When a filling or crown is damaged or comes away, the exposed tooth may become more sensitive to temperature changes and pressure. Everyday activities like eating or drinking can suddenly become uncomfortable.

8. Tooth Infection

When bacteria reach the inside of a tooth, they can cause an infection affecting the dental pulp. This may lead to ongoing pain, increased sensitivity or discomfort when biting.

9. Sinus Pressure

Surprisingly, not every toothache starts in the mouth. The roots of your upper back teeth sit close to your sinus cavities, so congestion or a sinus infection can sometimes feel like tooth pain.

10. Dental Trauma

A fall, sporting injury, or accidental knock to the mouth can damage a tooth, even if there is no obvious crack. If you notice pain after an injury, it is worth arranging a dental assessment.

When Is Tooth Pain a Dental Emergency?

Some toothaches can wait a day or two for an appointment, while others should not be ignored.

Arrange urgent dental care if you experience:

• Severe or worsening pain
• Swelling around the face or jaw
• Fever alongside toothache
• Difficulty swallowing or opening your mouth
• Bleeding that does not stop after an injury

Prompt assessment may help prevent further complications.

What Can You Do Before Seeing a Dentist?

While waiting for your appointment, there are a few simple things you can do to make yourself more comfortable.

• Brush gently to keep the area clean.
• Rinse your mouth with warm salt water if appropriate.
• Limit exposure to very hot, cold, or sugary foods may help reduce sensitivity.
• Try not to chew on the affected side.
• Speak with your pharmacist or follow your dentist’s advice about suitable pain relief if needed.

These measures may help manage symptoms, but they won’t treat the underlying cause.

How Do Dentists Treat Toothaches?

Treatment depends entirely on what’s causing the pain. During your appointment, your dentist will examine your teeth, gums and surrounding tissues. Depending on your symptoms, your dentist may recommend dental X-rays to assist in determining the underlying cause of your tooth pain.

Depending on the diagnosis, treatment may involve a filling, crown, root canal treatment, periodontal care, or another appropriate option. Your dentist will explain the available treatment options and discuss what may be suitable for your individual circumstances.

When Should You Book a Dental Appointment?

If your toothache lasts more than a day or two, keeps returning, or is getting worse, it is worth having it checked. Early diagnosis often makes treatment simpler and may help prevent more complex dental problems from developing.

Need Your Toothache Assessed?

If you’re experiencing ongoing tooth pain or sensitivity, arranging a dental examination can help identify the underlying cause and discuss appropriate treatment options. At The Good Dentists, we carry out thorough dental assessments and offer personalised guidance to support informed decisions about your oral health. Contact The Good Dentists to arrange an appointment.