CHARLES. W. BAILYN (1928)
- He emphasized the importance of support for partial dentures.
- “A”- Anterior restorations where there were saddle areas anterior to the bicuspids.
- “P”- Posterior restorations where there were saddle areas posterior to the canines.
CLASSIFICATION
- Class I: Bounded saddle (Tooth supported).
- Class II: Free end saddle (Mucosa supported).
- Class III: Bounded saddle (More than 3 tooth missing). Example: If all posterior teeth from canines till molars are missing with lateral incisors then the classification is AI P III.
NEUROHRS CLASSIFICATION
Class I:
Variation I:
- Posterior missing, Anterior all teeth present.
- Posterior missing, some anterior teeth missing.
Variation II
- Anterior missing, All posteriors present.
- Anterior missing, some posteriors missing.
Class II: Division I has variation 1 and 2.
Division II has variation 1 and 2
This classification is tooth tissue bearing.
Class III is edentulous state.
FRIEDMANS SYSTEM
A- Anterior space
B- Bound posterior space.
C- Cantilever situation or a posterior free end saddle.
OSBORNE and LAMMIE
Class I: Mucosa borne.
Class II: Tooth borne
Class III: Combination of mucosa borne and tissue borne.