Podcast
Questions and Answers
What is a key characteristic of hydrophobic impression materials?
What is a key characteristic of hydrophobic impression materials?
- High affinity for moisture
- Low contact angle
- Strict moisture control (correct)
- Excellent surface wetting
Why is tear resistance important for impression materials?
Why is tear resistance important for impression materials?
- To resist tearing during removal from the mouth (correct)
- To improve accuracy of the details
- To reduce dimensional stability
- To increase surface wetting
What is critical for accurate replication of intraoral structures?
What is critical for accurate replication of intraoral structures?
- Strict moisture control
- Dimensional stability (correct)
- Poor surface wetting
- High contact angle
Which factor may lead to dimensional changes in impression materials?
Which factor may lead to dimensional changes in impression materials?
Why is accurate reproduction of details essential for impression materials?
Why is accurate reproduction of details essential for impression materials?
What is the main purpose of an impression in crown and bridge prosthodontics?
What is the main purpose of an impression in crown and bridge prosthodontics?
Why is it essential for an impression to include enough uncut tooth surface beyond the preparation?
Why is it essential for an impression to include enough uncut tooth surface beyond the preparation?
What role does the hydrophilicity of impression material play in final impressions for crowns and bridges?
What role does the hydrophilicity of impression material play in final impressions for crowns and bridges?
Why should an impression be bubble free according to the text?
Why should an impression be bubble free according to the text?
What is meant by the requirement for an impression to be elastic after placement in the mouth?
What is meant by the requirement for an impression to be elastic after placement in the mouth?
Why is it crucial for an impression to accurately reproduce adjacent teeth and tissues?
Why is it crucial for an impression to accurately reproduce adjacent teeth and tissues?
