Comparison of Elastomeric Impression Materials

<p>Conductivity (C)</p> Signup and view all the answers

<p>Dimensional stability (A)</p> Signup and view all the answers

<p>Softened by heat (D)</p> Signup and view all the answers

<p>To allow for accurate capturing of oral structures (D)</p> Signup and view all the answers

<p>High elasticity (D)</p> Signup and view all the answers

<p>To avoid delaying treatment (D)</p> Signup and view all the answers

<p>Maintain adequate space for the final impression (D)</p> Signup and view all the answers

<p>Sulfate (A)</p> Signup and view all the answers

<p>Dibutyl phthalate (A)</p> Signup and view all the answers

<p>Controls setting reaction (C)</p> Signup and view all the answers

<p>2.5 minutes (A)</p> Signup and view all the answers

<p>Divinyl polymethyl siloxane (D)</p> Signup and view all the answers

<p>Retards the setting time (B)</p> Signup and view all the answers

<p>Thickening agents (A)</p> Signup and view all the answers

<p>&gt; 1 week (D)</p> Signup and view all the answers

<p>Fillers (B)</p> Signup and view all the answers

<p>Reactors (A)</p> Signup and view all the answers

<p>Latex gloves (B)</p> Signup and view all the answers

<p>Addition Silicones (B)</p> Signup and view all the answers

<p>Water and humidity (D)</p> Signup and view all the answers

<p>Unpleasant odor (D)</p> Signup and view all the answers

<p>To speed up the process (D)</p> Signup and view all the answers

<p>Polysulfide Rubber (Mercaptan) (D)</p> Signup and view all the answers

<p>Release of H (hydrogen) (D)</p> Signup and view all the answers

<p>High dimensional change (B)</p> Signup and view all the answers

<p>Silicone (A)</p> Signup and view all the answers

<p>Condensation Silicones (A)</p> Signup and view all the answers

<p>They distort due to light exposure (C)</p> Signup and view all the answers

<p>Polysulfide Rubber (Mercaptan) (B)</p> Signup and view all the answers

<p>To ensure the impression does not dry out (D)</p> Signup and view all the answers

<p>High dimensional stability (A)</p> Signup and view all the answers

<p>Disinfectants (B)</p> Signup and view all the answers

<p>They are hydrophobic (C)</p> Signup and view all the answers

<p>High flow rate (C)</p> Signup and view all the answers

<p>Addition Silicones (D)</p> Signup and view all the answers

<p>Greater chance of distortion (C)</p> Signup and view all the answers

<p>Condensation Silicones (A)</p> Signup and view all the answers

The ability of a material to spread over and adhere to the surface of oral tissues.

Not a necessary characteristic for an impression material, as strength is usually provided by the final model or casting.

A type of impression material used for border molding of complete dentures.

A desirable property for impression materials, ensuring a stable impression that can be easily removed and handled.

Storage conditions, such as temperature and humidity, play a significant role in maintaining the usability and accuracy of impression materials.

Essential property for ensuring proper flow and adaptation of the impression material to the oral tissues.

Implies the material's resistance to tearing during removal from the mouth, crucial in preventing distortion of the impression.

Allows for accurate impressions and prevents distortion during the setting process.

Creates space for the impression material, ensuring accurate border molding and a proper fit for the complete denture.

The primary component that gives the material its unique properties and characteristics.

A plasticizer that adjusts the consistency and viscosity of the base material.

Reduces surface tension and improves the flow and adaptation of the base material to the oral tissues.

Provide opacity and color to the base paste.

Catalysts that initiate and accelerate the chemical reaction that leads to the material's setting.

Acts as an initiator for the polymerization process, which is essential for setting the material.

Reduce the viscosity of the material, making it easier to mix, apply, and achieve accurate impressions.

Thickens the accelerator paste, improving its handling and stability.

Allows for adequate time for the impression material to set and solidify before pouring the cast.

Can inhibit the polymerization process of some materials, resulting in incomplete setting or distorted impressions.

Has the greatest ability to flow and adapt to the details of the oral tissues among elastomeric impression materials.

Can be distorted by heat and certain chemicals.

A known drawback of using this type of material for impressions due to its unpleasant odor.

The combination of the base and catalyst determines this specific time for the mentioned material in the text.

Requires a custom tray for application, limiting its versatility.

Can result in imperfections in the poured stone model, reducing its accuracy.

A common disadvantage shared by both material types, leading to inaccuracies in the final model.

Leads to difficulties in removing the impression from the mouth, increasing the risk of discomfort or distortion.

A property that makes it challenging to pour stone models, requiring the use of specialized techniques.

The main reason why silicone impressions are highly valued for their accuracy and detail.

Describes the limited ability of this material to flow and adapt to the details of the oral tissues.

Essential for preventing distortion and ensuring accuracy of the final model.

Contributes to their high precision, making them suitable for accurate impressions.

Can damage the impression, compromising its accuracy and usability.

Makes them unsuitable for pouring stone models, as the expansion would introduce inaccuracies in the final model.

Impacts the material flexibility and resistance to tearing.

Makes them more resistant to tearing during removal from the mouth.

Makes them prone to ripping during removal from the mouth, potentially distorting the impression.

Due to their low viscosity, they can easily flow down the throat, potentially causing discomfort or choking.