Podcast
Questions and Answers
What are the two main types of silicone impression materials?
What are the two main types of silicone impression materials?
- Polyether and polyvinyl siloxane
- Addition and polyvinyl siloxane
- Polyether and condensation
- Condensation and addition (vinyl silicone) (correct)
What is the composition of the base in a condensation silicone impression material?
What is the composition of the base in a condensation silicone impression material?
- Dimethylsiloxane with OH reactive group and reinforcing agent (silica) (correct)
- Ethanol and cross-linked siloxane polymer
- Polymethyl hydrosiloxane with silane terminated silicon and reinforcing filler
- Tin organic ester suspension in alkyl acetate such as orthoethyl silicate
What is the role of the accelerator (catalyst) in a condensation silicone impression material?
What is the role of the accelerator (catalyst) in a condensation silicone impression material?
- It increases the setting time of the material
- It increases the permanent deformation of the material
- It contains the siloxane polymer
- It is a tin organic ester suspension in alkyl acetate (correct)
What is the main reaction that occurs in a condensation silicone impression material?
What is the main reaction that occurs in a condensation silicone impression material?
What is the composition of the base in an addition (vinyl silicone) impression material?
What is the composition of the base in an addition (vinyl silicone) impression material?
What is the main difference between condensation and addition (vinyl silicone) impression materials?
What is the main difference between condensation and addition (vinyl silicone) impression materials?
Which disinfectant is recommended for disinfection of polyether impressions?
Which disinfectant is recommended for disinfection of polyether impressions?
What is the working time order from highest to lowest for polysulfide, silicones, and polyether materials?
What is the working time order from highest to lowest for polysulfide, silicones, and polyether materials?
What is the correct order of tear strength from highest to lowest for Polysulfide, Addition Silicone, Polyether, and Condensation Silicone?
What is the correct order of tear strength from highest to lowest for Polysulfide, Addition Silicone, Polyether, and Condensation Silicone?
Which impression material requires immersion in iodophor or glutaraldehyde for 10-30 minutes for disinfection?
Which impression material requires immersion in iodophor or glutaraldehyde for 10-30 minutes for disinfection?
What is the recommended method for disinfection of agar impressions?
What is the recommended method for disinfection of agar impressions?
What are digital impressions also known as?
What are digital impressions also known as?
What is a key advantage of automixing when it comes to Polyether rubber impression material?
What is a key advantage of automixing when it comes to Polyether rubber impression material?
How can contact between latex gloves and addition silicon material affect the setting process?
How can contact between latex gloves and addition silicon material affect the setting process?
What is a drawback of Polyether rubber materials compared to condensation silicon?
What is a drawback of Polyether rubber materials compared to condensation silicon?
How are Polyether rubber impression materials typically supplied for use?
How are Polyether rubber impression materials typically supplied for use?
What is the primary reason for creating extra space in the impression tray?
What is the primary reason for creating extra space in the impression tray?
What type of reaction is involved in Polyether rubber impression material setting process?
What type of reaction is involved in Polyether rubber impression material setting process?
