Now, the trend went in a different direction for the second year in a row, Delta Dental says, noting that the S and P 500 had a 20% increase while lost teeth experienced a small drop in the same period. Lost teeth in the west had the highest value at $8.54. That's a 37% increase from last year. That according to a survey of 1000 patients of children ages six to twelve years old. The northeast region had an average of $6.87