(CNN) -- Teeth are getting more expensive.
Delta Dental found that the tooth fairy shells out about $4.70 per tooth.
That's the most in the 23-year history of the original tooth fairy poll.
The previous high was $4.60 in 2017. The average per tooth varies across regions.
Delta Dental's poll was conducted between December 28 and January 8, with more than 1,000 parents of children ages 6 to 12.