Cracked teeth: causes, symptoms, and when to see a dentist

Cracked teeth are common, and left untreated they can cause pain and, in some cases, worse problems. A crack can be a small hairline fracture or a larger break that weakens the whole tooth. So what causes cracked teeth? Below are the usual causes, the symptoms to watch for, and the signs that mean it is time to call a dentist.

Common causes of cracked teeth

Teeth crack for several reasons. Some are preventable, others are not.

Biting down on hard objects

One of the most common causes of cracked teeth is biting down on hard objects. This could include things like ice, hard candy, or even using your teeth to crack nuts or open packages. Hard objects can put excessive pressure on the tooth, causing it to crack, especially if the tooth is already weakened by previous dental work or decay.

Teeth grinding (bruxism)

Teeth grinding, or bruxism, is another frequent cause of cracked teeth. Many people grind their teeth unknowingly during sleep or while under stress. Over time, the constant pressure from grinding can cause tiny fractures or chips to form in the enamel, eventually leading to a cracked tooth.

Poor oral hygiene

Inadequate oral hygiene can lead to weakened tooth enamel, which is more susceptible to cracking. If plaque and bacteria build up on the teeth, it can lead to tooth decay, which weakens the structure of the tooth. Once the enamel is compromised, the tooth is at risk for cracking.

Sports injuries

Physical sports, especially contact sports such as football, basketball, or soccer, increase the risk of accidental blows to the mouth. A sudden impact can cause a tooth to crack or even break entirely. Wearing a mouthguard during physical activities can help protect your teeth from injury.

Cavities and tooth decay

Tooth decay that is left untreated can lead to a weakened tooth structure. As cavities progress deeper into the tooth, they may cause the tooth to become brittle and more prone to cracking. If a cavity is large enough, it can affect the tooth's ability to withstand pressure and force.

Accidental blows to the mouth

Accidents, such as a fall or a collision, can lead to trauma to the mouth, resulting in a cracked tooth. While sports injuries are a common cause, any sudden blow to the face or jaw can cause significant damage to the teeth.

Temperature changes

Rapid changes in temperature, such as drinking a hot beverage followed by something cold, can cause a cracked tooth. This is because the materials that make up the tooth expand and contract in response to temperature changes, which can lead to stress and eventual cracking.

Acidic drinks and foods

Acidic foods and drinks, such as citrus fruits, soda, and vinegar, can erode tooth enamel over time. As the enamel weakens, the tooth becomes more vulnerable to cracks and fractures. Sipping acidic drinks all day makes the problem worse.

Aging and wear and tear

As you age, your teeth naturally experience wear and tear. The constant use of your teeth to chew, bite, and grind food over the years can eventually weaken them. Enamel on older teeth also tends to wear down, which makes cracks more likely.

Inadequate dental treatment

In some cases, dental work that is not properly done or doesn't fit well may contribute to cracked teeth. For example, improperly placed fillings or crowns can put uneven pressure on the tooth, causing it to crack. Regular checkups with a trusted dentist can help identify these issues before they become a bigger problem.

Symptoms of cracked teeth

Cracked teeth may not always be immediately noticeable, especially if the crack is small. Still, a few symptoms can point to a cracked tooth.

Pain when biting or chewing

A cracked tooth often causes pain when biting down or chewing food. You may feel sharp discomfort when applying pressure to the tooth, especially if the crack is deep. This can happen because the crack affects the nerve endings inside the tooth.

Temperature sensitivity

If your tooth is cracked, you may experience heightened sensitivity to hot and cold temperatures. This can occur because the crack exposes the inner layers of the tooth, which are more sensitive to temperature changes.

Intermittent discomfort

Sometimes, cracked teeth cause intermittent discomfort that comes and goes. The pain may not be constant, but it may flare up during certain activities, such as chewing, speaking, or even breathing in cold air.

Swelling and inflammation

If the crack leads to infection or irritation in the surrounding gum tissue, you may notice swelling or inflammation near the affected tooth. This can be a sign that the crack has reached the pulp inside the tooth, causing an infection.

Toothache

A toothache that doesn't go away may be a symptom of a cracked tooth. The pain may be dull or sharp, and it may worsen when pressure is applied to the tooth or when exposed to hot or cold temperatures.

Darkening of the fracture area

In some cases, a cracked tooth may show visible discoloration around the fracture. The tooth may appear darker or stained near the crack. This is often a sign that the crack has reached deeper layers of the tooth.

Increased sensitivity to chemical irritants

A cracked tooth can cause increased sensitivity to foods or beverages that contain chemicals, such as highly acidic or sugary substances. This sensitivity is due to the exposed inner layers of the tooth.

When to see a dentist

If you suspect that you have a cracked tooth, see a dentist as soon as possible to prevent further damage or infection. These signs mean it is time to book a visit.

Experiencing pain while chewing

If chewing or biting down causes consistent pain in a specific tooth, it may be cracked. Don't wait too long to seek treatment, as untreated cracks can lead to more serious dental issues.

Noticing sensitivity to temperature changes

If you feel sudden discomfort when drinking something hot or cold, this could be a sign that your tooth is cracked and the inner layers are exposed.

Observing swelling or gum inflammation

Swelling or redness in the gums around the affected tooth can indicate infection, which may result from a cracked tooth. This is especially true if the crack has reached the tooth's pulp.

Detecting darkening of the tooth

If the tooth shows signs of discoloration around the crack, it may indicate that the damage has penetrated deeper into the tooth. Treating it early matters here.

Identifying loose teeth

In severe cases, a cracked tooth can cause it to become loose. If you notice that your tooth is shifting or feels unstable, seek immediate dental attention to avoid tooth loss.

Many cracked teeth can be prevented with good daily care. At Neola Dental in Minneola, we check for cracks and weak spots during regular visits.

If you are worried about a cracked tooth or want help preventing one, our team can take a look.