Course Review- L6

Question 1

PDI:

Answer 1

prosthodontics diagnostic index

Question 2

Potential benefits of the PDI system include:

Answer 2

1. improved interoperator consistency
2. improved professionalism communication
3. insurance reimbursement commensurate with complexity of care
4. an improved screening tool for dental school admission clinics
5. standardized criteria for outcomes assessment and research
6. enchanted diagnostic consistency
7. a simplified aid in the decision-making process associated with referral

Question 3

What is the MAIN advantage of PDI?

Answer 3

Comprehensive evaluation and assessment of all necessary parameters to help in

1. DIAGNOSIS
2. TREATMENT
3. PROGNOSIS

Question 4

What are the 3 classifications of PDI?

Answer 4

1. Edentulous
2. Partial Edentulous
3. Dentate

Question 5

How many categories are in each classification of PDI?

Answer 5

4

Question 6

In regard to PDI classification, class I refers to:

Answer 6

an uncomplicated clinical situation

Question 7

In regard to PDI classification, class IV refers to:

Answer 7

a complex clinical situation

Question 8

T/F: According to PDI, any single criterion of a more complex class places the patient into the more complex class

Answer 8

true

Question 9

What class does the following describe according to the PDI classification system for complete edentulism?

Straightforward

Answer 9

class I

Question 10

What class does the following describe according to the PDI classification system for complete edentulism?

Denture-supporting anatomy degraded

Answer 10

class II

Question 11

What class does the following describe according to the PDI classification system for complete edentulism?

Anatomy degraded, surgical revision needed, additional factors are present

Answer 11

class III

Question 12

What class does the following describe according to the PDI classification system for complete edentulism?

Most debilitated edentulous condition

Answer 12

class IV

Question 13

List the modifiers for all PDI classifications that INCREASE complexity and classification level:

Answer 13

1. esthetic concerns/challenges
2. presence of TMD symptoms
3. oral manifestations of systemic disease
4. psychosocial factors
5. maxillofacial defects
6. ataxia
7. refractory patient

Question 14

T/F: According to classification system for complete edenulism, diagnostic criteria are organized by their OBJECTIVE NATURE and not in their rank of significance

Answer 14

True

Question 15

According to the classification system for complete edentulism, what is considered MANDIBULAR ONLY:

Answer 15

1. bone height
2. muscle attachments

Question 16

According to the classification system for complete edentulism, what is considered MAXILLARY ONLY:

Answer 16

residual ridge morphology

Question 17

According to the classification system for complete edentulism, other variables (contributing to increased difficulty) include:

Answer 17

1. presence of implants
2. gag reflex
3. tongue size
4. interarch space
5. psychosocial conditions
6. systemic conditions
7. refractory patient

Question 18

According to the classification system for complete edentulism, bone height is measured in the:

Answer 18

mandbile only

Question 19

According to the classification system for complete edentulism, where is bone height measured?

Answer 19

mandible only- measured at the least height

Question 20

According to the classification system for complete edentulism, the following mandibular bone heights can be categorized as:

A) 21mm or greater
B) 16-20mm
C) 11-15
D) 10mm or less

Answer 20

A) Type I (most favorable)
B) Type II
C) Type III
D) Type IV

Question 21

According to the classification system for complete edentulism, residual ridge morphology is:

Answer 21

maxillary only- the most objective criterion for the maxillary arch

Question 22

According to the classification system for complete edentulism, the most objective criterion for the maxillary arch is ______. The most objective criterion for the mandibular arch is ____.

Answer 22

max =residual ridge morphology; mand= bone height

Question 23

According to the classification system for complete edentulism, categorize the following maxillary residual ridge morphology:

Adequate vestibular depth, absence of tori, palatal morphology will resist movement of the denture

Answer 23

Type A- PDI Class I

Question 24

According to the classification system for complete edentulism, categorize the following maxillary residual ridge morphology:

Posterior buccal vestibule lost, tuberosity/hamular notch poorly defined:

Answer 24

Type B- PDI Class II

Question 25

According to the classification system for complete edentulism, categorize the following maxillary residual ridge morphology:

Anterior labial vestibule lost, mobile anterior ridge, palatal vault offers little resistance to movement of denture

Answer 25

Type C- PDI Class III

Question 26

According to the classification system for complete edentulism, categorize the following maxillary residual ridge morphology:

Anterior AND Posterior vestibule lost, tori interfere with posterior border of denture, hyperplasticity and mobile anterior ridge:

Answer 26

Type D- PDI Class IV

Question 27

According to the classification system for complete edentulism, what places a patient in worse class:

• anterior labial vestibule lost
• posterior buccal vestibule lost

Answer 27

Anterior labial vestibule lost (this results in PDI class 3, whereas posterior results in PDI class 2)