- This is the most accepted classification given by EDWARD KENNEDY.
- The Kennedy’s classification is based on the relationship of the saddles to the natural teeth.
- It has four main group with modifications of each of the first three of these:
CLASS-1
Bilateral edentulous area located posterior to the remaining natural teeth.
CLASS-2
Unilateral edentulous area located posterior to the remaining natural teeth.
CLASS-3
Unilateral edentulous area with natural teeth both anterior and posterior to it.
CLASS-4
Single bilateral edentulous area located anterior to the remaining natural teeth.

MERITS
- Classification is simple and universally accepted.
- It allows to clearly communicate, to write, or to diagnose the condition of the oral cavity in which teeth are to be replaced.
- It permits visualization of the type of partially edentulous arches being considered.
- Type of design can be decided.
- Easy to apply.
- Forms basis for Applegate, Kennedy and Swenson classification.
- Type of support can be determined.
DEMERITS
- Does not give proper information of teeth present and their positions.
- Does not mention about abutment teeth.
- Not applicable to single standing tooth.
- It tells about spaces but not all teeth to be replaced.