Dimensional stability of elastomeric impression material can be given in descending order as_____________?
Correct answer: C. Addition silicone > polyether > Polysulphide > Condensation silicone
- A. Polysulphide > polyether > Condensation silicone > Addition silicone
- B. polyether > Condensation silicone > Polysulphide > Addition silicone
- C. Addition silicone > polyether > Polysulphide > Condensation silicone
- D. Addition silicone> Condensation silicone > Polysulphide > polyether
Explanation
Addition silicone has the best dimensional stability because it produces no volatile by-product, followed by polyether, polysulfide and condensation silicone. Condensation silicone loses alcohol during setting, causing the greatest shrinkage.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
Practise Impression Materials
102 free Impression Materials MCQs from Dental Materials, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Dental Materials questions like this
Dental Materials is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Impression Materials questions
Which of the following component acts as an accelerator in ZOE impression paste ?
By product of condensation reaction between silicone base and alkyl silicate in presence of tin octate_______________?
Most mucostatic among the following_____________?
A laminate impression technique utilizes_______________?
Which of the following is correct arrangement of impression material regarding linear contraction in ascending order ?
Which of the following best describes the working time of impression material ?