Fixed Prosthodontic Lecture 9

Front 1

Who develop the PDI?

Back 1

-American College of Prosthodontics

Front 2

What is PDI?

Back 2

-PDI: Prosthodontic Diagnostic Index:
-This is partially edentulous classification system offers the following potential benefits.

Front 3

What is the advantage of having PDI?

Back 3

-Improves: Intra-operator consistency, pro. communication
-Insurance reimbursement w/ complex care
-Objective method for pt. screening
-Improved DX consistency
-Simplified, oragnized aid in decision to refer a pt.

Front 4

What are the 4 categories in PDI for the Partially Edentulous pt?

Back 4

-Class 1: Ideal/Minimally comprised
-Class 2: Moderately compromised
-Class 3: Substantially compromised
-Class 4: Severely compromised

Front 5

What is the 4 DX criteria for each class?

Back 5

1-Location and extend of edentulous ridge
2-Condition of abutments
3-Occlusal Scheme
4-Residual Ridge

Front 6

Describe Class 1 in relation to Location & Extend of Edentulous Area (s)?

Back 6

-Edentulous area is confined to single arch and one of the following:
-Ant. Max Ed. Span </equal 2 Incisors
-Ant. Mand Ed. Span </equal 4 incisors
-Post. Max./Mand Span </equal 2 premolar
-1 premolar & 1 molar

Front 7

Describe Class 2 in relation to Location & Extend of Edentulous Area (s)?

Back 7

-Edentulous areas in one or both arches with same criteria as Class I

OR / PLUS

-Maxillary or Mandibular canine is clinically missing

Front 8

Describe Class 3 in relation to Location & Extend of Edentulous Area (s)?

Back 8

-Any Max/Mand span >/equal 3

OR

-2 Molars

Front 9

Describe Class 4 in relaiton to Locaiton & Extend of Edentulous Area (s)?

Back 9

-Any edetulous area(s) requiring A LOT OF pt. compliance

Front 10

Describe Class I in relation to Condition of Abutment teeth?

Back 10

No Prosthetic TX required

Front 11

Describe Class 2 in relation to Condition of Abutment teeth?

Back 11

-Abutment teeth in 1 or 2 sextants
-Insufficient tooth structure to retain intracoronal restoration
-Require adjunctive TX such as Perio, Endo ect.

Front 12

Describe Class 3 in relation to Condition of Abutment teeth?

Back 12

-Abutment Teeth in 4/more sextants
-Insufficient tooth structure to retain/support intra- or extra-coronal restoration
-Requires extensive adjunctive therapy

Front 13

Describe Class 4 in relation to Condition of Abutment teeth?

Back 13

-Abutment teeth have a guarded prognosis

Front 14

Describe Class 1 in relation to Occlusal Scheme?

Back 14

-No pre-prosthetic TX necessary
-Class I molar and jaw relationship

Front 15

Describe Class 2 in relation to Occlusal Scheme?

Back 15

-Requries local adjunctive TX, such as enameloplasty on premature occlusal contacts
-Class I molar and jaw relationship

Front 16

Describe Class 3 in relation to Occlusal Scheme?

Back 16

-Entire occlusal scheme requires re-establishment W/O OVD change
-Class 2 molar and jaw relationship

Front 17

Describe Class 4 in relation to Occlusal Scheme?

Back 17

-Entire occlusal requires re-establishment W/ OVD changes
-Class 2 molar and jaw relationship

Front 18

Describe Class 1, 2, 3, 4 in relation to Residual Ridge?

Back 18

-Residual Ridge morphology is Class I complete edentulism description

Front 19

Loss of posterior support describe which class?

Back 19

Class 4

Front 20

What are some additonal criteria for Class 4?

Back 20

-Refractory pt.
-Difficulty in achieving their TX expectations
-Severe manifestations of local or systemic disease including sequelae from oncologic TX
-Maxillo-mandibular dyskinesia

Front 21

What is refractory pt?

Back 21

-A pt. who has chronic complaints following appropriate therapy

Front 22

When pt. criteria are mixed b/t 2 or more classes, any ____ ____ of a more ____ ____ places the pt. into the more complex class.

Back 22

-Single criterion
-Complex class

Front 23

_____ health is initmately related to the DX and prognosis for partially edentulous patients.

Back 23

-Periodontal health

Front 24

Classificaiton increase by one more level due to what?

Back 24

-Esthetic Concerns
-TMD symptoms

Front 25

What Classification is used for Edentulous Maxilla Opposing the Partially Ed. Mandible in Maxilla & Mandbile?

Back 25

-Maxilla: Complete Ed. Classification
-Mandible: Partially Ed. Classification

Front 26

What is the single Exception to the Rule?

Back 26

-Edentulous mandible vs. Partially Denate or Fully Dentate

Front 27

Consideration of future TX procedures must influence the diagnostic level (T/F)

Back 27

False: Consideration of future TX procedures must NOT influence the DX level

Front 28

Initial pre-prosthetic TX and or adjunctive therapy can change the intial Classification level (T/F)

Back 28

True