Lec 1.3: Classifications

Question 1

The classification of a partially edentulous arch should satisfy the ff. requirements:

(1) It should _________ of the type of partially edentulous arch that is being considered.

(2) It should ________ between the tooth supported and tissue supported removable partial denture.

(3) Serve as a _______ to the type of design to be used.

(4). It should be universally ________.

Answer 1

• permit immediate visualization
• permit immediate differentiation
• guide
• accepted.

Question 2

A classification of edentulous jaw conditions and partial dentures, based on the distribution of edentulous spaces, is made by?

Answer 2

Edward Kennedy

Question 3

It is the most widely accepted classification of partially edentulous arches.

Answer 3

Kennedy classification

Question 4

Those patients already wearing a partial denture.

Answer 4

Restored cases

Question 5

Those patients that are without dental prosthesis.

Answer 5

Unrestored cases

Question 6

Bilateral free-end saddle / distal extension

Answer 6

Class I

Question 7

Bilateral edentulous areas located posterior to the remaining natural teeth.

Answer 7

Class I

Question 8

Unilateral free-end saddle / distal extension

Answer 8

Class II

Question 9

Unilateral edentulous area located posterior to the remaining natural teeth.

Answer 9

Class II

Question 10

Unilateral edentulous area with natural teeth remaining both anterior and posterior to it (bounded).

Not crossing the midline.

Answer 10

Class III

Question 11

Single, but bilateral (crossing the midline) edentulous area located anterior to the remaining natural teeth.

Answer 11

Class IV

Question 12

It is a modification of Kennedy’s System.

Answer 12

Applegate-Kennedy’s System

Question 13

• It is based less on the number and location of the remaining teeth and edentulous spaces.
• It takes into consideration the capabilities of the teeth, which bound the spaces to serve as abutments for prosthesis.

Answer 13

Applegate-Kennedy’s System

Question 14

Classification should follow rather than precede any extractions of teeth that might alter the original classification.

Answer 14

Rule 1

Question 15

If a third molar is missing and is not to be replaced, it is not considered in the classification.

Answer 15

Rule 2

Question 16

If a third molar is present and is to be used as an abutment, it is considered in the classification.

Answer 16

Rule 3

Question 17

If a second molar is missing and is not to be replaced, it is not considered in the classification (e.g., if the opposing second molar is likewise missing and is not to be replaced).

Answer 17

Rule 4

Question 18

The most posterior edentulous area (or areas) always determines the classification.

Answer 18

Rule 5

Question 19

Edentulous areas other than those that determine the classification are referred to as modifications and are designated by their number.

Answer 19

Rule 6

Question 20

The extent of the modification is not considered, only the number of additional edentulous areas.

Answer 20

Rule 7

Question 20

No modification areas can be included in Class IV arches.

Answer 20

Rule 8

Question 21

This is the most common classification.

Answer 21

Class I

Question 22

There are no further posterior teeth to the edentulous area. A free-end saddle is where in the saddle is not resting on teeth on both sides.

Answer 22

Class I

Question 23

As they do not possess free-end saddles, they tend to be far more secure cases when designing.

Answer 23

Class III

Question 24

Considered to be the rarest of the classifications.

Answer 24

Class IV

Question 25

He modified and expanded the Kennedy Classification based on the condition of the abutment to include 2 additional group.

It takes into consideration the capabilities of the teeth, which bound the spaces to serve as abutments for the prosthesis.

Answer 25

Dr. O.C. Applegate

Question 26

Classification Based On Restored Condition

Answer 26

Cummer’s
Behcet’s

Question 27

Classification Based On Unrestored Condition

Answer 27

Austin-Ledge
Kennedy
Applegate

Question 28

This refers to multiple edentulous areas present in a case.

Answer 28

Modifications

Question 29

This is the most common classification

Answer 29

Class I

Question 30

It is like Class I but just covering one side of the arch.

Answer 30

Class II

Question 31

As they do not possess free-end saddles, they tend to be far more secure cases when designing.

Answer 31

Class III

Question 32

Considered to be the rarest of the classifications.

Answer 32

Class IV