Porosity present in a acrylic denture is usually the result of______________?
Correct answer: D. Lack of sufficient pressure applied to flask
- A. A prolonged curing cycle
- B. Prolonged bench cooling after curing
- C. Insufficient acrylic resin monomer
- D. Lack of sufficient pressure applied to flask
Explanation
Insufficient pressure during flask packing or curing allows monomer vapour and air spaces to remain in the denture base, producing porosity. A prolonged curing cycle or bench cooling does not usually cause this defect.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Polymers in Dentistry
39 free Polymers in Dentistry MCQs from Dental Materials, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
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 Polymers in Dentistry questions
Acrylic resins are used for______________?
Cross linking in denture base resin is contributed by_____________?
Hydroquinone is added to methyl methacrylate monomer_________________?
In heat cure denture base acrylic resins the monomer is___________?
Which of the following may result if an excessive amount of monomer is incorporated into an acrylic resin mixture ?