A 60 year old male patient complains of food lodgment in upper right back teeth region. Patient gives h/o RCT with 16 and 17. Crown cutting was done with 16 and 17 and impression was taken with type V gypsum product. The setting expansion of this gypsum material is-
Correct Answer: 0.30%
Description: The setting expansion has been increased from a maximum of 0.10% to 0.30%. The rationale for increasing setting expansion is that certain newer alloys, such as base metal, have a greater casting shrinkage than do the traditional noble metal alloys. Thus, higher expansion is required in the stone die to aid in compensating for the alloy solidification shrinkage.
Category:
Dental
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now