The p atient bites into the material.
Uses of different impression materials.
The two types of material are inelastic and elastic.
Figure 11 1 impression material classification elastic properties.
In the routine practice of restorative dentistry impression materials are one of the key materials that make our practices easier and more predictable than in the past.
An impression material is classified according to specific properties.
The elastic impression materials must then be used but as most are actually viscoelastic materials see chapter 1 6 there is a possibility of some permanent deformation.
A dental impression is an imprint of teeth and or soft tissues formed with specific types of impression materials that is used in different area of dentistry including prosthodontics.
Each of the materials has advantages and disadvantages but they are each used for a different purpose and are effective and commonly used products in dentistry today.
Storage stability there is usually a significant delay between the taking of an impression and its arrival in the dental laboratory where the model is poured.
There are various impression techniques ranging from open mouth to close mouth methods.
The differences between impression materials as outlined above are the materials themselves and the purpose they are used for.
Impression materials are selected because of their unique qualities that allow dentists to obtain the most accurate reproduction.
Other uses of impression materials.
Mechanical property indicates the flexibility of a material.
A dental impression is a negative imprint of hard teeth and soft tissues in the mouth from which a positive reproduction cast or model can be formed.
Different types of impression materials are available which vary in their properties.
Technique accuracy taste ease of manipulation cost dimensional stability and the operator s preference will dictate the choice of impression materials figure 11 1.
Different types of impression materials are available.
Also there is a wide range of dental impression materials like the following.
Pvs offer advantages of improved hydrophilic nature and thus better flow precision and accurate detailing kumar and vijayalakshmi 2006.
One of the most commonly used nanoimpression materials are polyvinylsiloxanes pvs.
A dentist uses custom made or universal size trays impression materials and lubricants to make an impression of your teeth gums and part of your jaws.
T he mixed material is placed on the occlusal s urfaces of the mandibular arch.
A correctly made dental impression will capture a part or all of a person s dentition and surrounding structures of oral cavity.
