What Is a Dental Cavity and How Can You Prevent It?

What Exactly Is a Dental Cavity?

A dental cavity, also known as tooth decay or caries, is a small hole that forms in your tooth when plaque (a sticky layer of bacteria) breaks down the enamel. If left untreated, cavities can grow larger and lead to pain, infections, or even tooth loss.

How Do Cavities Form?

Cavities usually develop in a few stages:

1. Plaque builds up on the surface of the teeth from food and drinks.

2. Bacteria in the plaque feed on sugars and produce acids.

3. These acids erode the enamel over time, causing demineralization.

4. If left untreated, the decay progresses to deeper layers of the tooth, including the dentin and pulp, resulting in pain and sensitivity.

   
   

Common Signs of a Cavity

You might have a cavity if you notice:

• Toothache or spontaneous pain

• Sensitivity to hot, cold, or sweet foods

• Visible holes or dark spots on your teeth

• Pain when chewing

• Bad breath or a strange taste in your mouth

If you experience any of these symptoms, it's best to book an appointment with your local dentist as soon as possible.

How Can You Prevent Cavities?

Preventing cavities is easier than treating them! Here are 7 practical tips to protect your smile:

• Brush Twice a Day

Use a fluoride toothpaste and brush for at least 2 minutes, especially before bed.

• Floss Daily

Flossing removes food particles and plaque from between the teeth, where your toothbrush can’t reach.

• Visit Your Dentist Regularly

Routine check-ups (every 6 months) help catch cavities early and keep your mouth clean.

• Cut Down on Sugary Foods and Drinks

Bacteria love sugar. Try to limit sweets, soft drinks, and fruit juices.

• Drink More Water

Water helps wash away food and neutralizes acids in the mouth.

• Use Mouthwash

An antibacterial mouthwash can reduce plaque and fight off harmful bacteria.

• Ask About Sealants or Fluoride Treatments

Especially for kids or people prone to cavities, professional treatments can offer extra protection.

What Happens If You Don’t Treat a Cavity?

Ignoring a cavity can lead to:

• Larger holes in the tooth

• Tooth infections or abscesses

• Root canal treatment or tooth extraction

• More expensive and complex dental procedures

Need Help? Visit Our Dental Clinic in Barcelona

At Clínica Dental Opal, we offer comprehensive exams, preventive care, and gentle cavity treatments for patients of all ages. Whether it’s your first visit or your regular check-up, we’re here to keep your smile healthy and bright.

📍 Located in the heart of Barcelona, we speak Spanish, Catalan, and English, and we welcome locals and expats alike.

Book Your Appointment Today

Don’t wait for a cavity to cause pain. Contact us now to schedule your next dental check-up and keep your teeth strong for years to come.