🦷 Tooth Cavities: Why Do They Happen Even If You Brush?
“I brush my teeth twice a day, so why do I still get cavities?”
This is one of the most common questions asked at a dentist in Mulund.

Brushing is extremely important for preventing tooth decay and cavities, but it is not the only factor that determines whether you develop dental cavities.

Why can cavities happen despite regular brushing?

1. Improper brushing technique
Brushing quickly or missing areas around the back teeth, gumline and between teeth can leave plaque behind. Proper brushing for about two minutes with fluoride toothpaste is important.

2. Frequent sugary foods and drinks
Every time we consume sugar, cavity-causing bacteria produce acids that attack the tooth enamel. Frequent snacking, sweets, chocolates, biscuits, soft drinks and sugary beverages can increase the risk of dental cavities.

3. Not cleaning between the teeth
A toothbrush cannot effectively clean every area between teeth. Plaque trapped between teeth can eventually cause interdental cavities. Floss or interdental brushes can help clean these areas.

4. Deep grooves in teeth
Back teeth often have deep pits and grooves where food and plaque can get trapped. These areas can develop cavities even with regular brushing.

5. Dry mouth
Saliva naturally helps protect teeth by washing away food particles and neutralising acids. Reduced saliva flow can increase the risk of tooth decay.

6. Existing dental problems
Old fillings, cracked teeth, gum recession and exposed root surfaces can make certain areas more vulnerable to decay.

🦷 Remember: Brushing prevents cavities, but it cannot guarantee that you will never get one.

Regular dental check-ups and professional cleaning help detect early tooth decay before it becomes a bigger problem. If you notice tooth sensitivity, food getting stuck, a black or brown spot, pain or a hole in your tooth, visit a dentist for an examination.

For cavity treatment, tooth decay treatment and preventive dental care in Mulund, consult Dr. Hetal Parekh at Parekh Dental Care, Mulund.

Healthy teeth need more than just brushing—regular dental check-ups, good oral hygiene and mindful eating all play a role.

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Sep 26th, 2026 11:46 AM

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