FABRICATION OF THE METAL FRAMEWORK

Question 1

DESIGN TRANSFER

Answer 1

transfer of design of metal framework to master cast
-surveying table
-mark retentive undercuts

Question 2

casts are blocked out to eliminate

Answer 2

undercut areas that will be crossed by rigid parts of the rpd

Question 3

all parts of the framework are non flexible except for the

Answer 3

clasp tips

Question 4

arbitrary blockout in less critical areas (4)

Answer 4

-gingival crevices
-spaces between teeth not in the design
-gross tissue undercuts
-areas that would complicate the duplicaiton process

Question 5

relief:

Answer 5

space between the framework and cast/soft tissue

Question 6

beneath framework extension in edentulous areas

Answer 6

-provide attachment of the denture base
-form internal finish line

Question 7

prepared master casts are duplicated to produce

Answer 7

an exact copy of the master cast in investment material (refractory cast)

Question 8

framework pattern will be fabricated on the refractory cast using

Answer 8

wax

Question 9

an impression using reversible hydrocolloid (agar( is made of the

Answer 9

wax pattern on the refractory cast

Question 10

other materials that can be used

Answer 10

alginate
reversible plastic gel