Cavities (Tooth Decay): Symptoms, Causes & Treatment (2024)

What does a cavity look like?

Though cavities are hard to see in the early stages, you might notice a small, white, chalky area on your tooth enamel. As the cavity worsens, you may see brown or black spots on your tooth.

Cavities vs. stains

Cavities and stains both cause tooth discoloration, so it can be easy to confuse the two. Generally, cavities are darker in color compared to stains. Additionally, stains tend to affect several teeth. But if you see one tiny spot on one tooth, chances are it’s a cavity.

If you think you have a cavity, call a dentist right away. Prompt, timely treatment is key.

What does a cavity feel like?

It depends on the severity of tooth decay. For instance, if you have a very small cavity that only affects your enamel, you won’t feel it. But when decay reaches the inner layers of your tooth, you may experience pain or sensitivity to heat, cold or sweets. (Teeth sensitivity doesn’t always mean you have a cavity. But it’s a good idea to get it checked out, just in case.)

What happens if you have a cavity for a long time?

Small tooth cavities turn into large cavities over time. As decay worsens, it affects the deeper layers of your tooth. This can lead to pain, infection and ultimately, tooth loss. Early treatment is essential for long-term oral health.

Can a cavity heal on its own?

Yes, in the very early stages, you may be able to reverse cavities. Tooth enamel can repair itself. If a cavity is very small, and it hasn’t spread beyond your enamel yet, then you may be able to remineralize your tooth with fluoride treatments and improved oral hygiene.

Keep in mind, though — if the cavity spreads to your dentin, you’ll need a filling, crown or other dental restoration to fix it.

If a cavity hurts, is it too late?

If a cavity is painful, it means the decay has spread to the deeper layers of your tooth. At this stage, you’ll need a dentist to repair the cavity. When treated quickly, a dentist may be able to save your tooth.

Most dentists prefer to save your natural teeth. If a cavity results in an abscessed tooth, or the damage is too significant, you may need a tooth extraction. A dentist can discuss your treatment options in detail.

A note from Cleveland Clinic

If you have signs of a cavity, don’t hesitate to see a dentist for care. They’ll check your tooth and recommend the best course of action. If you catch tooth decay in its earliest stage, you might not even need a filling. That’s why it’s so important to seek care right away.

Dental visits can be stressful, especially when you don’t know what’s going to happen. But establishing care with a provider you trust can help take the fear out of sitting in the dental chair. Your dentist will teach you tips for brushing and flossing that can help you avoid new cavities and keep you smiling for years to come.

Cavities (Tooth Decay): Symptoms, Causes & Treatment (2024)
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