3. Classification of Partially Edentulous Arches

Question 1

Kennedy Classification System
Kennedy Class I Arch
 ____ edentulous areas posterior to remaining natural teeth

Answer 1

bilateral

Question 2

Kennedy Classification System
 Kennedy Class II Arch
 A ____ edentulous area located posterior to remaining natural teeth

Answer 2

unilateral

Question 3

Kennedy Classification System
Kennedy Class III Arch
 A ____ edentulous area with natural teeth both ____ to it

Answer 3

unilateral

anterior and posterior

Question 4

Kennedy Classification System
 Kennedy Class IV Arch
 A ____, but bilateral (crossing the ____), edentulous area
located ____ to the remaining natural teeth
 Edentulous space must cross the dental midline

Answer 4

single
midline
anterior

Question 5

Kennedy Classification System
Applegate’s Rules for Classification:
1. Classification should ____ rather than precede any extractions of teeth that might alter the original classification.
2. If a third molar is missing and not to be replaced, it is ____ considered in the classification.
3. If a third molar is present and is to be used as an abutment, it is ____ in the classification.
4. If a second molar is missing and is not to be replaced, it is ____ considered in the classification.

Answer 5

follow
not
considered
not

Question 6

Kennedy Classification System

Applegate’s Rules for Classification:
5. The most ____ edentulous area always
determines the classification.
6. Edentulous areas other than those determining the classification are referred to as “modifications” and are designated by their number.
7. The extent of the modification is not considered, only the number of additional edentulous areas.
8. There can be no modification areas in Class ____ arches.

Answer 6

posterior

IV

Question 7

ACP Classification of Partial Edentulism
 Diagnostic Criteria
1. Location and extent of edentulous areas 
2. Condition of abutment teeth
3. Occlusal scheme
4. Residual ridge
• Class I – \_\_\_\_ compromised
• Class II –\_\_\_\_ compromised
• Class III –\_\_\_\_ compromised
• Class IV –\_\_\_\_ compromised
• JProsthod1999;8:27-‐39McGarryet.al.

Answer 7

ideal or minimally
moderately
substantially
severely