About zinc oxide eugenol all are true except_______________?
Correct answer: D. Dehydrated ZnO reacts with dehydrated eugenol
- A. ZnO is converted to Zn(OH)2
- B. Reaction is autocatalytic
- C. Water is the byproduct of reaction
- D. Dehydrated ZnO reacts with dehydrated eugenol
Explanation
Zinc oxide eugenol requires moisture for its chelation reaction, producing zinc eugenolate and water; completely dehydrated ZnO and eugenol would not set normally. The conversion of ZnO through hydrated species and the autocatalytic nature of the reaction are compatible with the setting process.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
Practise Dental Cements
61 free Dental Cements 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 Dental Cements questions
Frozen slab technique of mixing zinc phosphate is used for_______________?
Which of the following acts as accelerator in Zinc oxide eugenol______________?
Frozen slab technique is applicable to_____________?
Which glass ionomer cement develops early resistance to water intake on setting ?
Advantage of zinc phosphate over GIC is______________?
Which one of the following dental cements does not contain water as part of the composition of the liquid component ?