By Dr. Keerthi Sudireddy
Sugar is the main driver of tooth decay, but the way it harms teeth surprises many people. It is less about quantity and more about frequency.
When you eat sugar, mouth bacteria turn it into acid that attacks enamel for about 20 to 40 minutes. The more often you consume sugar, the more acid attacks occur each day, which is what drives decay. Limiting sugary snacks and drinks to mealtimes, drinking water, and good brushing protect your teeth far more than just cutting total sugar.
How sugar causes decay
Bacteria feed on sugar and release acid that dissolves enamel. Each exposure starts an acid attack lasting around half an hour, so frequent snacking means near-constant attacks.
How to protect your teeth
- Keep sugary foods and drinks to mealtimes.
- Drink water; rinse after sweets.
- Avoid sipping sugary or fizzy drinks all day.
- Brush twice daily and keep check-ups.
See cavity prevention and best foods for teeth.
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