Uses Of Impression Materials

Impression materials are used to produce a detailed replica of the teeth and the tissues of the oral cavity.

Uses of impression materials.

Vinyl polysiloxane impression material impression material vinyl polysiloxane dental impression materials used for making accurate dental impressions with excellent reproducibility. This classification is based on the capability of the material to withdraw over the undercuts it has set. A correctly made dental impression will capture a part or all of a person s dentition and surrounding structures of oral cavity. Chemistry optional these materials have an ether group in the molecular structure.

It was not borrowed from another industry. It gives good detail reproduction than any other material. General comments impression materials are used to make replicas models or casts of t eeth and other oral tissues. In dentistry we take impressions of teeth and their supporting structur es.

However it has been replaced by rubber based impression materials because of the costly armamentarium required. Types of impression trays. For example as in the production of dies for fixed restorations. Dental impression making is the process of creating a negative form of the teeth and oral tissues into which gypsum or other die materials can be processed to create working analogues.

Impression trays are used to hold the impression material allowing the operator to place it into the patients mouth. Contemporary dentistry generates new information every year and digital dentistry is becoming established and infl. They may be perforated for better retention of the impression material. Agar is an aqueous impression material used for recording maximum details.

These supporting structures include gingiva a lveolar bone or residual ridge hard and soft palate and frenums which are muscle attachments. The impression material will set chemically or physically and then may be removed from the mouth for use extra orally. Impression materials that is the materials used to get an idea about the shape of teeth and the alveolar ridges can be categorized as nonelastic and elastic materials. Agar is also known as a reversible hydrocolloidal impression 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. Development polyether impression material was developed in the late 1960s for use a s a dental impression material. It is available in putty and light body consistencies to aid dentists make perfect impressions for fabrication of crowns bridges inlays onlays and veneers.