caries
C1CEFR level
70/100Rarity: rare
TechnicalRegister
The progressive demineralisation and destruction of tooth structure caused by acids produced by bacterial fermentation of dietary sugars.
Radiographs revealed interproximal caries extending into the dentine on the distal surface of the first molar.
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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