#pyorrhea_alveolaris__pyorrhea__pyorrhoea__Riggs'_disease  chronic periodontitis; purulent inflammation of the teeth sockets
  supertype:  #periodontal_disease__periodontaldisease__periodontitis__periodontiti  a disease that attacks the gum and bone and around the teeth
  subtype:  #pericementoclasia  pus pocket formation around a tooth

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