Why This Newborn's Smile Is So Rare

This kind of smile happens in one in 2,000 to 3,000 newborns.

— -- Alyssa Bailey was born three days after Christmas with a little something extra -- two bottom front teeth.

The doctors and nurses who delivered her were quite taken with this dental surprise, said the baby's mom, Jaklina Bailey.

"Right when she first arrived, everybody was just shocked," the mother told ABC7, the ABC affiliate in Branson, Missouri, where the baby was born. "Just like, 'She has two front teeth? No kidding? Really?' It was just a big talk about it, you know, in the delivery room."

"Teeth can be present in oral cavities at birth and may be related to certain other health problems but not always," Corio explained.

Typically, the doctor will remove or shave down the natal teeth as soon as possible to avoid problems with nursing and prevent the baby from cutting its tongue, said Corio.

In baby Alyssa's case, her mom said they're going to keep an eye out to ensure the tiny teeth don't come loose and present a choking hazard. But since they're an extra set, once they fall out, doctors are confident her usual baby teeth will grow in normally.

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