prosthodontics

prosthodontics

Postby divya123 » Tue Sep 05, 2017 6:07 pm

1 -The true statement regarding support of distal extension denture base is
(a) it gains its support through the abutment and residual ridges
(b) tissues covering the residual ridge are 7-10 times more displaceable than periodontal ligament of abutment teeth
(c)support from residual ridge becomes greater as distance from the terminal abutment increases
(d) all of the above

2-When an hydrocolloid IMPRESSION exhibits syneresis it can be expected that
(A) exudate has accelerating effect on the setting reaction of gypsum
(b)exudate has retarding effect on the setting reaction of gypsum
(C)results in chalky cast surface
(d)both b and c
divya123
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