Can Cavities Spread From One Person to Another?

Can Cavities Spread From One Person to Another?


Cavities are holes in teeth that form because of the untreated decay. A cavity can affect the enamel, dentin and cementum along with the soft tissue of a tooth. Cavities start off on a small scale but it gradually escalates to a chronic one if it is left untreated for a long time. Tooth decay does not always cause pain, which is why it easily goes unnoticed until it seriously affects the teeth and gums. Contact a Siliguri Dental Clinic to get a dental cleaning appointment.

Table of contents:

  • Do Tooth Cavities Spread?
  • How to Prevent Cavities in Children and Babies

  • How to Prevent Cavities in Adulthood

Do Tooth Cavities Spread?

It may sound uncanny but yes, tooth cavities spread and are contagious. In some ways it is similar to catching a cold as you can also catch a cavity by swapping spit. The major contributor to cavities is still sugar build up that decays teeth. However, studies show that cavities can be transmitted if you have a close contact with another person who has poor oral hygiene.

There are studies that show that one can develop a cavity on their tooth via kissing. This is a common result if their partner has poor oral hygiene. This study was conducted by evaluated kissing couples. When two people kiss passionately, the precursors to cavities ride it out in the bacteria that are contained in the saliva and are passed on from one person to another.

The same can happen when mothers get too close to the babies. Babies are very vulnerable to cavity causing bacteria and in most cases when the child has a cavity; they have inherited it from their parents or their primary caregivers. One common way bacteria can be transferred to the baby is when you check the temperature of the baby’s food by taking the first bite and using the same spoon to feed the baby.

How to Prevent Cavities in Children and Babies

  • Do not use your saliva to clean off the baby’s pacifier or bottle nipple.
  • Do not share cups spoons and other eating utensils.
  • Wipe your child’s mouth each night before bed with a clean soft cloth to remove the plaque buildup around the emerging teeth and gums.
  • Take your child in to have their first dental exam by their first birthday so that you have a clear idea on how to maintain your child’s oral hygiene.

How to Prevent Cavities in Adulthood

Follow these steps suggested by a Siliguri dental clinic to help prevent tooth decay:

  • Brush twice daily using toothpaste with fluoride.
  • Floss at least once daily.
  • Limit intake of sugary foods and frequent snacking  
  • Regular dentist checkups for cleanings and exams.

Doctor Smile is among the finest Siliguri dental clinics.

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