Which of the following impression material requires a hardener? A. Agar B. Alginate C. Elastomers D. Impression compound
Understand the Problem
The question is asking about different types of impression materials used in dentistry and which one of them requires a hardener. The options provided are various materials, and the focus is on identifying the correct one that incorporates a hardener in its formulation.
Answer
Elastomers
The final answer is Elastomers
Answer for screen readers
The final answer is Elastomers
More Information
Elastomeric impression materials, such as polyethers or silicones, require a hardener to set and form a precise impression. These materials are chemically set, unlike agar, alginate, or impression compounds.
Tips
A common mistake is assuming that all impression materials require a hardener. It's important to differentiate between physical setting materials (like agar) and chemical setting ones (like elastomers).
Sources
- Dental Materials MCQs - Impression Materials - dentaldevotee.com
- Dental Impression Materials - StatPearls - NCBI Bookshelf - ncbi.nlm.nih.gov
AI-generated content may contain errors. Please verify critical information
