Denture Design

Question 1

what are the benefits of modifying survey lines?

Answer 1

• can give more favourable clasping
• improves denture retention

Question 2

what would you do if a pt had no useable undercuts?

Answer 2

add composite to create undercuts

Question 3

give 2 examples of precision attachment

Answer 3

-ball on post and diaphragm
-tubelock

Question 4

what is the purpose of precision attachments?

Answer 4

to increase retention

Question 5

give 2 disadvantages of precision attachments

Answer 5

-technically demanding
-difficult to repair/replace

Question 6

when would you use a two-part denture?

Answer 6

when there is gross tissue loss and different paths of insertion

Question 7

how do two-part dentures work?

Answer 7

-split pins are placed on a cobalt denture
- acrylic slots into the pins on a different path of insertion

Question 8

what Kennedy classification is a swing lock denture usually used for?

Answer 8

1
occasionally 2

Question 9

give an example of when you would use a swing lock denture

Answer 9

only lower anterior teeth present and poor undercuts on canines

Question 10

give 2 disadvantages of swing lock dentures

Answer 10

• excellent OH required
• technically demanding

Question 11

what adjustment would you make when making a denture for a bruits?

Answer 11

placing metal backings on the teeth- cobalt chrome reduces fracture

Question 12

what material can be used when making a denture for a pt with an acrylic allergy?

Answer 12

nylon with porcelain teeth

Question 13

what does LIMBO stand for?

Answer 13

lip support
incisal level
midline
buccal corridor
occlusal plane