Priya Sharma Priya Sharma Asked 10 months ago

Can cavities be transmitted?

My little son has a few cavities, and his cousin, who he shares food with sometimes, also just got one. I'm a bit worried now. Is it possible that cavities can spread from one person to another, like a cold or something?

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6 answers

Amit Gokhale Amit Gokhale Joined Mar 2026 7 months ago
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I recently had a major dental treatment and my dentist told me that the bacteria causing cavities can actually spread through saliva, like sharing food or kissing. I've become much more careful about sharing drinks now.

Savitri Devi Savitri Devi Joined Apr 2026 7 months ago

My child, the bacteria that cause tooth decay can indeed spread, especially when sharing spoons or cups with young children. Along with avoiding sharing utensils, make sure you rinse your mouth with warm salt water daily to keep it clean.

Sunita Devi Sunita Devi Joined Jan 2026 9 months ago

Yes, cavity bacteria can spread if you share spoons or spit. But remember, the main reason for cavities is still bad brushing habits and eating too much sugar. Brush twice a day and visit your dentist, that's the best defense.

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Consult a dental surgeon

Tanya Saxena Tanya Saxena Joined Mar 2026 8 months ago

Yes, it's true! The bacteria (mutans streptococci) can easily be passed on, especially from parents to babies. So it is super important to maintain good oral hygiene and not blow on a baby's food or share spoons.

Siddharth Sen Siddharth Sen Joined Jun 2026 4 months ago

As a diabetic, I have to be extremely careful with both my sugar intake and dental health since infections spread fast. Cavity-causing bacteria do transmit through saliva. Keep your teeth clean, avoid sharing utensils, and keep your blood sugar in check.

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Karan Bhatia Karan Bhatia Joined Jul 2026 4 months ago

Wait, does this mean sharing my favorite street food or sipping from the same cold coffee glass can pass on cavity bacteria? That is so wild to think about! Better to keep your own plate from now on, guys.

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