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#3 (permalink) |
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Supporter
Join Date: Feb 2009
Posts: 69
Rep Power: 2 ![]() |
Tim, what kind of retention on backings do you like? Loops, double loops? What kind of metal primer and opaque do you use, and from what company? Do you use tooth color acrylic to process the facings and how often or do you use pink acrylic with denture teeth facings?
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#4 (permalink) |
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Senior Member
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It changes depending on the situation. Flatback about 25% of the time. custom boxing with a post some. Usually I like to set the teeth and cut retention and include this when I pour up my refractory model and then just wax to it.
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Tim Lane, CDT Cynosure Dental Laboratory The PROS in RemovablePROSthetics Memphis, TN |
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#6 (permalink) |
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Senior Member
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557 bur or a number 8 I then take an inverted cone and make a finish line a little below the translucent incisial edge. After I cut it i coat it with a thin layer of relief wax to help it come out sharp. If it gets a bubble you can always bur it out a bit with a smaller bur after you dip it. The resulting ruogh surface just gives you a bit more mechanical retention.
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Tim Lane, CDT Cynosure Dental Laboratory The PROS in RemovablePROSthetics Memphis, TN |
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#8 (permalink) |
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Supporter
Join Date: Feb 2009
Posts: 69
Rep Power: 2 ![]() |
I'll share something also with you. When you are doing metal backings or overlays and it is necessary to articulate refractory model, just pop off master model from articulator , fix the refractory model to opposing model , close the articulator and glue it with glue gun in place. Works every time.
Last edited by DDDental : 07-04-2009 at 09:09 PM. |
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