(Photo by Ian Waldie/Getty Images)

Becker’s Dental Review says dentists are warning people against taking part in a new Tik Tok challenge called the Shark Teeth challenge. Tik Tok users are filing their teeth down to resemble shark teeth. Dentists say damage from the challenge often leads people to getting crowns and dentures, which must be replaced every 10 to 15 years at a cost of $20,000.

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