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Denturist
alginate impressions
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<blockquote data-quote="denturist-student" data-source="post: 66766" data-attributes="member: 5492"><p>In school here, Alginate is not a mucostatic impression material. It is classed as mucodisplasive. That is, it displaces the tissues too much to consider it for a final impression. Borders become overextended easily without a lot of attention and care. Polyvinyl siloxanes are the final impression materials we use. They are one of the few really mucostatic impression materials. Using Aquasil heavy for border molding and medium for wash. If necessary use a light body for final wash all with a custom tray. The custom tray can be form fitted or selective pressure tray with a wax spacer for border molding and removng the wax spacer for the final impression. The best advantage of using vinyl siloxane for impressions is that the impression survives the pull off and you can use it to map out some pressure spots during insertion.<img src="/forums/images/smilies/test/cheers.gif" class="smilie" loading="lazy" alt="Cheers" title="Cheers Cheers" data-shortname="Cheers" /> and take care...</p></blockquote><p></p>
[QUOTE="denturist-student, post: 66766, member: 5492"] In school here, Alginate is not a mucostatic impression material. It is classed as mucodisplasive. That is, it displaces the tissues too much to consider it for a final impression. Borders become overextended easily without a lot of attention and care. Polyvinyl siloxanes are the final impression materials we use. They are one of the few really mucostatic impression materials. Using Aquasil heavy for border molding and medium for wash. If necessary use a light body for final wash all with a custom tray. The custom tray can be form fitted or selective pressure tray with a wax spacer for border molding and removng the wax spacer for the final impression. The best advantage of using vinyl siloxane for impressions is that the impression survives the pull off and you can use it to map out some pressure spots during insertion.Cheers and take care... [/QUOTE]
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