periodontal pocket
C1CEFR level
88/100Rarity: very rare
TechnicalRegister
An abnormally deepened gingival sulcus caused by the destruction of supporting tissue in periodontal disease.
Probing shows a six-millimetre periodontal pocket on this molar, which indicates significant attachment loss.
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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