Kennedy Classification
A system for categorising partially edentulous arches into four classes based on the location of edentulous spaces relative to remaining teeth.
Full Definition
Developed by Dr Edward Kennedy in 1925, the Kennedy Classification divides partially edentulous arches into four classes: Class I (bilateral posterior edentulous areas), Class II (unilateral posterior edentulous area), Class III (unilateral edentulous area with teeth on both sides), and Class IV (single edentulous area crossing the midline anteriorly). Each class can have modifications (e.g., 'modification 1') indicating additional edentulous areas. Editors must capitalise 'Kennedy' and use Roman numerals for class designations (e.g., Kennedy Class II, not 'class 2'). The classification directly governs RPD design and must be transcribed accurately.
Usage
Usage note: Always capitalise 'Kennedy'. Use Roman numerals for class numbers. 'Modification' is abbreviated 'mod.' in some clinical notations; expand in formal documents.
In Context
- "The patient presented with a Kennedy Class I arch, requiring a bilateral distal-extension RPD." — Prosthodontic treatment planning note
- "Kennedy Class III modification 2 was recorded to reflect two additional edentulous spaces." — Diagnostic cast analysis record