What is a Cavity?

When it comes to oral health, one term that you’ve likely heard before is “cavity.” Cavities are a common dental problem that affects approximately 91% of adults. Understanding what a cavity is and how it develops can help you take better care of your teeth and prevent dental issues in the future.

Teeth are covered with a protective layer called enamel, which is the hardest substance in the human body. However, enamel is not invincible and can be damaged by various factors. As damage accumulates, a hole develops (this is what we call a cavity). It starts small and gradually grows larger over time if left untreated.

Large cavity in tooth #15

The development of a cavity starts with acid, which damages your teeth. For most people, this acid comes from bacteria in the mouth. These bacteria feed on the sugars and carbohydrates present in the food we consume, creating acids as a byproduct.

When you eat or drink carbohydrates, the bacteria in your mouth convert the carbohydrates into acids. Your saliva naturally contains bicarbonate ions that help to buffer and neutralize those acids. However, if you are frequently snacking or sipping on carbs throughout the day, then those acids will continue to be produced, accumulating damage to your teeth.

As these acids gradually erode the enamel, a small hole or cavity forms. Initially, you may not notice any symptoms, as the early stages of tooth decay are often painless. However, as the cavity progresses and reaches the dentin, which is the sensitive layer beneath the enamel, you may start experiencing tooth sensitivity or pain.
If left untreated, the cavity continues to grow and eventually reaches the pulp, which contains nerves. When this happens, it can cause intense pain and lead to more serious dental problems, such as infections.

Preventing cavities is crucial for maintaining good oral health. Here are some tips to help you keep your teeth cavity-free:

  1. Brush your teeth regularly: Brushing your teeth at least twice a day with fluoride toothpaste, helps remove plaque and bacteria from the surfaces of your teeth. The fluoride will also help to reverse damage caused by acids.
  2. Floss daily: Flossing helps clean the areas between your teeth where a toothbrush cannot reach effectively.
  3. Limit sugary and acidic foods: Foods and beverages that are high in sugar and acidity promote the growth of bacteria and increase the risk of cavities. It’s okay to have some in moderation, but frequent exposure will cause problems.
  4. Visit your dentist regularly: Regular dental check-ups are essential for detecting cavities in their early stages and addressing any oral health concerns.
  5. Consider dental sealants: Dental sealants are thin, protective coatings applied to the chewing surfaces of the back teeth. They help prevent plaque and bacteria from accumulating in the deep grooves and crevices, reducing the risk of cavities.

Cavities are a common dental problem, but with proper oral hygiene practices and regular dental care, they can be prevented. Remember, prevention is always better than cure, so take care of your teeth and maintain a healthy smile for years to come.

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