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Partial Impression Tray
(2598 Views)
A partial tray or an impression spoon is a common tools used in the dental process of taking dental imprint. Just like the hole -impression spoon, the partial impression spoon, also contains impression materials to take a dental impression or dental imprint. The different types of impression spoon available are convention impression spoon, individualised impression spoon and partial impression spoon. Partial impression spoons are being used in place of whole impression spoon because they use far less impression material during a dental impression. Dentists have devised another way of using lesser impression material while taking a dental impression and that is to partially fill up the impression spoon. However, this is a wrong practice as the resultant plaster models cannot be accurately placed on one another, since the technician gets only a partial dental imprint, resulting in only partial dental models that pivot towards one another and cannot be positioned accurately. As a result, the denture cannot be modelled correctly. In comparison to this, a whole dental impression can be used to make models of the entire jaw and are known as a 3-point contact. Since these 3-point contact models do not pivot on one another, the technician can use them to produce a denture which will have the most comfortable fit. To know more about the utility of an impression spoon, please watch the video.
Produced: 07/2011
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