Flashcards
Impression Materials
Flashcards do conjunto (13)
- 1What are the two different categories of elastic impression materials?Synthetic elastomers and hydrocolloids
- 2What are the three types of synthetic elastomer impression materials?Polysulphides, silicones and polyethers
- 3What are the two types of hydrocolloid materials?Reversible (alginate) and irreversible (agar)
- 4What is the ability of a substance to retain its shape when subjected to varying degrees of temperature, moisture, pressure, or other stress?Dimensional stability
- 5What is the tendency of a surface to become wet or absorb water?Hydrophilicity
- 6What is the ability of a material to resume its normal shape after being stretched or compressed?Elasticity
- 7What is the measure of resistance to tearing?Tear strength
- 8What impression material suffers from condensation polymerisation?Polysulphides
- 9What type of impression material is impregun?Polyether
- 10What is the name of the new material that is a hybrid between polyether and addition silicone?Vinyl polyether siloxane
- 11What are the two types of impression silicones?Condensation and addition silicones
- 12The condensationof which material releases ethyl alcohol as a by-product instead of water?Condensation curing silicones
- 13What are the three types of impression techniques?- Monophase technique
- Double mix technique (one stage)
- Putty wash technique (one or two stages)
Informações
- Descrição
- Dentistry FlashCards sobre Impression Materials, criado por Celia Diez em 24-02-2018.
- Criado por
- Celia Diez
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