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Denturist
Lot of Bubbles in Dentures
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<blockquote data-quote="kcdt" data-source="post: 178227" data-attributes="member: 349"><p>You are not packing to sufficient density like that, I guarantee it.</p><p>If you don't understand press packing procedures here's some tutorials:</p><p>[MEDIA=youtube]YnqqKPvR-OU[/MEDIA]</p><p></p><p><a href="http://www.pua.edu.eg/PUASite/uploads/file/Dentistry/Courses/Fall%202013/RPR%20311/processing%20of%20complete%20denture%20-%20part%202.pdf" target="_blank">http://www.pua.edu.eg/PUASite/uploads/file/Dentistry/Courses/Fall 2013/RPR 311/processing of complete denture - part 2.pdf</a></p><p></p><p><a href="http://www.jpda.com.pk/effect-of-curing-methods-and-temperature-on-porosity-in-acrylic-resin-denture-bases/" target="_blank">http://www.jpda.com.pk/effect-of-curing-methods-and-temperature-on-porosity-in-acrylic-resin-denture-bases/</a></p><p></p><p><a href="http://www.gcamerica.com/lab/products/NATURE-CRYL_HI20ET/brochure.pdf" target="_blank">http://www.gcamerica.com/lab/products/NATURE-CRYL_HI20ET/brochure.pdf</a></p><p></p><p>Your porosity issue is caused by dropping it in boiling water straight away </p><p>and/or lack of trial packing.</p><p></p><p>Optimum water bath is 165˚F going from room temperature at 2˚/minute on a 9 hour timed cycle with a half hour boil at the end. UNLESS the manufacturer details specs different from this.</p><p></p><p>Don't microwave unless you have resin formulated for it. Too technique sensitive.</p></blockquote><p></p>
[QUOTE="kcdt, post: 178227, member: 349"] You are not packing to sufficient density like that, I guarantee it. If you don't understand press packing procedures here's some tutorials: [MEDIA=youtube]YnqqKPvR-OU[/MEDIA] [URL]http://www.pua.edu.eg/PUASite/uploads/file/Dentistry/Courses/Fall%202013/RPR%20311/processing%20of%20complete%20denture%20-%20part%202.pdf[/URL] [URL]http://www.jpda.com.pk/effect-of-curing-methods-and-temperature-on-porosity-in-acrylic-resin-denture-bases/[/URL] [URL]http://www.gcamerica.com/lab/products/NATURE-CRYL_HI20ET/brochure.pdf[/URL] Your porosity issue is caused by dropping it in boiling water straight away and/or lack of trial packing. Optimum water bath is 165˚F going from room temperature at 2˚/minute on a 9 hour timed cycle with a half hour boil at the end. UNLESS the manufacturer details specs different from this. Don't microwave unless you have resin formulated for it. Too technique sensitive. [/QUOTE]
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Lot of Bubbles in Dentures
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