The document discusses the Kennedy classification system for partially edentulous arches. The Kennedy classification includes four main classes - Class I for bilateral posterior edentulism, Class II for unilateral posterior edentulism, Class III for unilateral edentulism with teeth anterior and posterior, and Class IV for a single bilateral anterior edentulism. The Applegate rules provide additional guidelines for how to apply the Kennedy classification, such as considering missing third molars and determining the classification based on the most posterior edentulous area. The advantages of the Kennedy classification are that it allows for immediate visualization of the arch type and distinction between tooth-supported and tissue-supported prostheses.

1. Kennedy
classification
Dr. Shoaib Rahim
BDS, FCPS
Assistant professor
Department of Prosthodontics

2. Why need a classification?

3. Requirements of classification
system
• Immediate visualization of the type of partially
edentulous arch that is being considered
• Immediate differentiation between tooth supported and
tooth & tissue supported removable partial denture
• Universally acceptable

4. CLASSIFICATION SYSTEMS
• Kennedy
• Cummer
• Bailyn
• Beckett
• Godfrey
• Swenson
• Miller
• Skinner
• Applegate

5. KENNEDY CLASSIFICATION
• CLASS I
Bilateral edentulous areas location
posterior to the natural teeth

6. CLASS I

7. KENNEDY CLASSIFICATION
• CLASS II
Unilateral edentulous area located
posterior to the remaining natural teeth

8. CLASS II

9. KENNEDY CLASSIFICATION
• CLASS III
Unilateral edentulous area with natural
teeth remaining both anterior and posterior to it

10. CLASS III

11. KENNEDY CLASSIFICATION
• CLASS IV
Single but bilateral (crossing the
midline), edentulous area located anterior to
the remaining natural teeth

12. CLASS IV

13. CLASSIFICATION?

14. APPLEGATE RULES
• Rule 1
Classification should follow rather than
precede any extractions of teeth that might altar
the original classification
• Rule 2
If a 3rd molar is missing and is not to be
replaced, it is not considered in the classification

15. APPLEGATE RULES
• Rule 3
If a third molar is present
and is to be used as an abutment,
it is considered in the classification
• Rule 4
If a 2nd molar is missing and
is not to be replaced, it is not
considered in the classification

16. APPLEGATE RULES
• Rule 5
the most posterior
edentulous area (or areas)
always determine the
classification

17. APPLEGATE RULES
• Rule 6
Edentulous areas other
than those that determine
the classification are referred
to as modifications and are
designated by their number

18. APPLEGATE RULES
• Rule 7
The extent of the medication is not
considered, only the number of additional
edentulous areas

19. APPLEGATE RULES

20. APPLEGATE RULES
• Rule 8
No modification areas
can be included in Class IV
arches

21. ADVANTAGES
• It permits immediate visualization of the
partially edentulous arches
• Allows easy distinction between tooth
supported versus tooth and tissue supported
prosthesis
• It permits logical approach towards designing
of the prosthesis
• It is universally accepted

22. EXERCISES

23. EXERCISES

24. EXERCISES

25. EXERCISES

26. EXERCISES

27. EXERCISES

28. THE END