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Why do my teeth hurt when I bite down?

Have you ever experienced a sharp pain when biting down on your food?  It can be a distressing sensation that makes you hesitant to eat certain foods or even avoid...

Have you ever experienced a sharp pain when biting down on your food? 

It can be a distressing sensation that makes you hesitant to eat certain foods or even avoid chewing altogether. 

But why do your teeth hurt when you bite down? 

In this blog post, we will explore the various causes of tooth pain and discuss how you can find relief.

No one wants to deal with tooth pain. 

It can ruin a perfectly good meal or make simple tasks like brushing your teeth a painful ordeal. Understanding the underlying causes of this discomfort is essential in finding the right solution. 

So, let's dive into the different factors that can contribute to tooth pain when biting down.

Tooth decay

One of the most common causes of tooth pain is tooth decay. 

When plaque, a sticky film of bacteria, accumulates on your teeth, it produces acid that eats away at the enamel, the protective outer layer of your teeth. 

Over time, this can lead to cavities, which are tiny holes in your teeth.

If you have tooth decay, biting down can put pressure on the cavity, causing pain. The pain may be sharp and localized to a specific tooth. 

You may also experience sensitivity to hot, cold, or sweet foods and drinks. 

If left untreated, tooth decay can progress, leading to more severe pain and potential tooth loss.

The good news is that tooth decay is preventable and treatable. 

Regular use of this KIWIBIRD white electric toothbrush, as well as routine dental checkups help prevent tooth decay.

Gum disease

Gum disease, also known as periodontal disease, is another common cause of tooth pain when biting down. 

It occurs when bacteria in plaque infect and inflame the gums, leading to gum recession and the formation of pockets between the teeth and gums.

When you bite down, the pressure on your gums can cause pain, especially if they are already irritated or infected. In addition to tooth pain, gum disease can cause other symptoms such as bleeding gums, bad breath, and loose teeth.

Preventing gum disease requires good oral hygiene habits, including regular use of this KIWIBIRD pink electric toothbrush!

If gum disease is diagnosed, your dentist may recommend deep cleaning procedures, such as scaling and root planing, to remove plaque and tartar from below the gumline.

Tooth sensitivity

Do you experience a sharp, fleeting pain when biting into hot or cold foods? If so, you may have tooth sensitivity. 

This condition occurs when the underlying layer of your teeth, called dentin, becomes exposed due to enamel erosion or gum recession.

When you bite down on something, the pressure stimulates the nerves in the exposed dentin, leading to pain. Tooth sensitivity can also be triggered by sweet or acidic foods, as well as brushing or flossing your teeth.

To manage tooth sensitivity, you can use a KIWIBIRD black electric toothbrush designed for sensitive teeth.

Avoiding overly hot or cold foods and drinks can also help reduce discomfort.

Cracked tooth

Imagine this: You're biting down on a piece of hard candy when suddenly, you feel a sharp pain in your tooth. 

This could be a sign of a cracked tooth. Cracks in teeth can occur due to various reasons, such as biting down on hard objects, grinding your teeth, or experiencing trauma to the mouth.

When you bite down, the pressure on the cracked tooth can cause pain. The pain may be intermittent or constant, depending on the severity of the crack. You may also notice sensitivity to hot or cold foods and drinks.

If you suspect you have a cracked tooth, it's crucial to see your dentist as soon as possible. 

They can evaluate the extent of the crack and recommend appropriate treatment, which may include bonding, a crown, or a root canal, depending on the severity of the crack.

Bruxism (teeth grinding)

Do you often wake up with jaw pain or headaches? 

It could be due to bruxism, a condition characterized by clenching or grinding your teeth, usually during sleep. The excessive force exerted on your teeth during grinding can lead to tooth pain when biting down.

In addition to tooth pain, bruxism can cause other symptoms such as jaw muscle soreness, worn-down teeth, and even cracked or fractured teeth. Stress, anxiety, and an abnormal bite can contribute to teeth grinding.

If you suspect you have bruxism, it's essential to discuss it with your dentist. They may recommend a custom-made nightguard or suggest techniques to reduce stress and anxiety. 

Addressing the underlying causes of bruxism can help alleviate tooth pain and prevent further damage to your teeth.

Dental abscess

A dental abscess is a pus-filled pocket that forms at the root of a tooth due to a bacterial infection. 

It can cause severe tooth pain, especially when biting down. Other symptoms of a dental abscess include swelling, redness, and a foul taste or odor in the mouth.

A dental abscess requires immediate dental attention. Your dentist may need to drain the abscess and prescribe antibiotics to clear the infection. 

In some cases, a root canal or tooth extraction may be necessary to eliminate the source of the abscess.

Temporomandibular joint (TMJ) disorder

Lastly, tooth pain when biting down can also be a symptom of temporomandibular joint (TMJ) disorder. 

The TMJ is the joint that connects your jawbone to your skull, and when it becomes inflamed or injured, it can cause pain and discomfort.

If you have TMJ disorder, biting down can put stress on the joint, leading to pain. Other symptoms of TMJ disorder include jaw clicking or popping, difficulty opening or closing your mouth, and headaches.

Treatment for TMJ disorder may include lifestyle changes, such as eating soft foods and avoiding gum chewing, as well as physical therapy exercises to improve jaw function.

In some cases, a dentist may recommend a nightguard or splint to alleviate the pain and protect the joint.


Tooth pain when biting down can have various causes, ranging from tooth decay and gum disease to tooth sensitivity, cracked teeth, bruxism, dental abscesses, and TMJ disorder. 

Recognizing the underlying issue is crucial in finding appropriate treatment and relieving the pain.

If you experience tooth pain when biting down, it's important to schedule an appointment with your dentist. They can evaluate your symptoms, diagnose the cause of your tooth pain, and recommend the best course of action to restore your dental health.

Remember, caring for your teeth and gums through regular use of your KIWIBRID green electric toothbrush and regular visits to your dentist is the key to preventing tooth pain and maintaining a healthy smile.


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