PERIODONTAL DISEASEperiodontal disease · English · Reference checkedReferenceOpen English WordNet 2024oewn2024:lemma:PERIODONTAL DISEASETier 1Ordinal191Pythagorean83Classical182Reverse295Reverse Reduction106Standard920Final Large920Ordinal155Reduced56Atbash495Isopsephy1145Ordinal200Abjad847