PERIODONTICSperiodontics · English · Reference checkedReferenceOpen English WordNet 2024oewn2024:lemma:PERIODONTICSTier 1Ordinal147Pythagorean66Classical140Reverse177Reverse Reduction69Standard926Final Large926Ordinal143Reduced44Atbash371Isopsephy919Ordinal163Abjad769