fluoride varnish
B2CEFR level
75/100Rarity: rare
TechnicalRegister
A concentrated fluoride coating painted onto the teeth to strengthen enamel and reduce the risk of decay.
I'll apply a fluoride varnish to help remineralise those early white-spot lesions and prevent them progressing.
Rarity runs from 0 (a word everyone knows) to 100 (almost never seen outside specialist or literary writing). Level is the word's real difficulty on the CEFR scale, from A1 to C2.
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