The Truth About Cavities: Causes, Myths & Prevention Tips

Cavities—they’re one of the most common dental problems, yet also one of the most misunderstood. You may think cavities only come from eating too much candy or that you’ll always feel them if they’re forming. The truth is, cavities can be sneaky, preventable, and even reversible in their early stages—if you know the facts.

At Modern Dental of Durham, we believe education is just as important as treatment. Let’s clear up some myths and give you practical tips to help keep your smile cavity-free.

🦷 What Is a Cavity, Really?

A cavity is a hole or area of decay that forms in your tooth when plaque (a sticky film of bacteria) isn’t properly removed. The bacteria feed on sugars from your food and drinks, producing acids that wear away the tooth enamel. Over time, this leads to decay and eventually a cavity.

If untreated, a cavity can grow larger, cause pain, and even lead to infection or tooth loss.

❌ Common Myths About Cavities

MYTH 1: Only Sugar Causes Cavities👉 While sugar definitely contributes, it’s not the only culprit. Starchy foods (like chips or bread) also break down into sugars and feed bacteria.

MYTH 2: You’ll Always Feel a Cavity👉 Not true. Many cavities start painlessly. By the time you feel sensitivity or pain, the decay has likely reached deeper layers of your tooth.

MYTH 3: Kids Get More Cavities Than Adults👉 While children are certainly at risk, adults often develop cavities too—especially around old fillings, receding gums, or if dry mouth is an issue.

MYTH 4: Brushing Alone Will Prevent Cavities👉 Brushing helps, but it’s not enough. Flossing, limiting snacking, and regular dental cleanings are essential for full cavity prevention.

✅ Proven Ways to Prevent Cavities

1. Brush & Floss ConsistentlyBrush twice a day with fluoride toothpaste and floss at least once daily. Don’t forget to clean along the gumline and between teeth where your brush can’t reach.

2. Drink Plenty of WaterWater helps rinse away food particles and keeps saliva levels up. Saliva is your mouth’s natural defense against cavity-causing bacteria.

3. Limit Sugary Snacks & DrinksSipping soda or snacking all day feeds cavity-causing bacteria. Try to eat at set times and choose tooth-friendly snacks like cheese, nuts, or fresh vegetables.

4. Use Fluoride ProductsFluoride strengthens tooth enamel and helps reverse early signs of decay. Ask your dentist about fluoride rinses or in-office treatments if you're at high risk.

5. Get Regular Dental CheckupsCavities caught early are easier and cheaper to treat. At Modern Dental of Durham, we use digital X-rays and thorough exams to detect even the smallest signs of trouble.

🪥 Don’t Wait for the Pain—Prevent Cavities Before They Start

Whether you're due for a checkup or just want to improve your oral care routine, we’re here to help you stay ahead of cavities and keep your smile strong for life.

📅 Request an appointment today with Modern Dental of Durham, and take the next step toward a healthier, cavity-free smile.