Uses Of Different Impression Materials

There are various impression techniques ranging from open mouth to close mouth methods.

Uses of different impression materials.

Pvs offer advantages of improved hydrophilic nature and thus better flow precision and accurate detailing kumar and vijayalakshmi 2006. Mechanical property indicates the flexibility of a material. 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. Impression materials are selected because of their unique qualities that allow dentists to obtain the most accurate reproduction.

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. Unique vps impression material uses an advanced temperature sensitive formulation howard e. Different types of impression materials are available which vary in their properties. The differences between impression materials as outlined above are the materials themselves and the purpose they are used for.

The p atient bites into the material. Bite registration materials most elastome ric impression materials can be used as a bite registration material. Technique accuracy taste ease of manipulation cost dimensional stability and the operator s preference will dictate the choice of impression materials figure 11 1. 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 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. One of the most commonly used nanoimpression materials are polyvinylsiloxanes pvs. 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. It is made by placing an appropriate material in a stock or custom dental impression tray which is designed to roughly fit over the dental arches.

Other uses of impression materials. Also there is a wide range of dental impression materials like the following. The two types of material are inelastic and elastic. Figure 11 1 impression material classification elastic properties.

T he mixed material is placed on the occlusal s urfaces of the mandibular arch. 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. 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.