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A cold or the flu are common things we try to avoid catching, but did you know that cavities are contagious, too? Research has proven that not only is this very much a possibility, it’s common!

We all like to make candy and sugar the culprit for unhealthy teeth, but the reality is cavities are caused by bacteria – like Streptococcus mutans and Streptococcus sobrinus – that cling to the teeth. This bacteria creates an acid by-product that ultimately destroys your tooth enamel.

The gross thing about it all is just like a cold or the flu can be shared from one person to the next, so can this cavity-creating bacteria. Sharing food, drinking off of someone and kissing are the most common ways to swap this bacteria.

According Dr. Mitchell,  a cosmetic dentist,  “In one instance, a patient in her 40s who had never had a cavity suddenly developed two cavities and was starting to get some gum disease.” Dr. Mitchell learned the woman was dating a man who hadn’t seen a dentist in 18 years and he had gum disease.

Cavities Are Contagious!  was originally published on

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