Kattadiyil Lecture

Question 1

Maxilla - Direction of resorption

Nasolabial angle?

Answer 1

Superiorly, posteriorly, and medially

Angle: Acute

Question 2

Mandible - Direction of resorption

Mentolabial angle?

Answer 2

Inferiorly, anteriorly, laterally

Acute: Obtuse

Question 3

Diagnostic criteria for PDI completely edentulous

Answer 3

1. Residual ridge
2. Muscle attachments
3. Maxillomandibular relationship
4. Bone height (mandible on panoramic)

Question 4

What two authors talked about palatal throat form?

Answer 4

1. House 1958

2. Naylor 1986

Question 5

% of patients with retracted tongues?

Who talked about this?

Answer 5

33% have a retracted position

Wright 1949

Question 6

Impression techniques (3)

Answer 6

1. Selective pressure (Boucher) - Open mouth
2. Mucostatic/non-pressure (Page) - Open mouth. (Page was an engineer)
3. Functional/pressure (Pound/Green brothers) - Closed mouth technique

Question 7

Do you extend the denture posterior to the vibrating line or the valsalva line?

Answer 7

Vibrating line

Question 8

Posterior palatal seal depth

• How much into the amount of tissue displacability?
• Who wrote about this?
• Two reasons for this?

Answer 8

Half the amount of displaceability

Hardy 1958

• Increase retention
• Compensate for polymerization shrinkage

Question 9

Who wrote about teeth visibility?

- Average for maxillary central for males and female?

Answer 9

Vig and Brundo 1978

• Male: 1.9
• Females: 3.4

Question 10

Four occlusal schemes and authors?

Answer 10

1. Bilateral balanced occlusion (Boucher)
2. Lingualized occlusion (Payne, Pound)
3. Monoplane (Jones)
4. Neutrocentric (De Van)