16/09/2025
🦠Cavities Can Spread Mouth to Mouth.
Most people think cavities come only from sugar — but the real cause is bacteria. And here’s the surprising part: those bacteria can spread from one mouth to another.
Everyday habits like kissing, tasting from the same spoon, or even sharing a straw can transfer Streptococcus mutans — the main bacteria behind cavities. Once inside a new mouth, they stick to teeth, thrive on sugar, and release acids that slowly eat away enamel.
👶 Children are especially at risk. Their developing teeth are softer, making it easier for these bacteria to settle and trigger early decay. Parents with untreated tooth decay often see their kids face the same problem.
😬 In adults, bacteria may spread too, but strong defenses like daily brushing, flossing, low sugar intake, and regular checkups can keep them from causing damage. The transfer may happen — but disease doesn’t stand a chance in a protected mouth.
