Have you noticed any improvement in kids gnashers since the sugar tax on drinks?
As stated above we've had a steady rise in decay free so hard to say exactly what it's down to.
2018 71% decay free
2020 74% decay free
Hard to find exactly comparable data for England as they survey different ages.
2017 5years old 77% decay free
2014 3year olds 88%% decay free.
Basically 12% of 3 year olds in England already have visible tooth decay, on average 3 teeth affected.
However the difference in 5year olds between least and most deprived is again marked.
Although the average is 23.3% with decay, it varies from 13.6% with decay in the least deprived to 33.7% with decay for the most deprived areas.
You can also compare various ethic groups.
Eastern European have a decay rate of 49.4%. More than double national average.
However Black is lower than the average at 19.6%.
Data from UK Government 2017