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Stock trays must meet various requirements in order to obtain a satisfactory impression. A good stock tray will: Be rigid enough to endure the force of the dental impression material being positioned in the mouth. Flexure of the tray under force would cause the tray to be distorted, so when the impression tray is removed the impression would be ...
Conventional dental impressions are made by placing an impression material loaded on an impression tray over the dental arches. As it sets a negative imprint of the soft and hard tissues in the mouth.
Acrylics are used in the fabrication of dentures, artificial teeth, impression trays, maxillofacial / orthodontic appliances and temporary (provisional) restorations. They cannot be used as tooth filling materials because they can lead to pulpitis and periodontitis, as they may generate heat and acids during setting, and in addition they shrink ...
Structure of dental inlays and onlays. In dentistry, inlays and onlays are used to fill cavities, [1] and then cemented in place in the tooth. This is an alternative to a direct restoration, made out of composite, amalgam or glass ionomer, that is built up within the mouth.
Intraoral scanners are devices used in dentistry which create digital scans of the teeth and soft tissue anatomy. [1] These devices replace the use of dental putty impressions by using a light source and image sensors to record the tissues inside the mouth accurately and create a virtual alternative to traditional impression plaster models [1]
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