More one shot appliances....

labdude · 04-07-2008, 04:29 PM

... while I don't think these type of patterns approach the quality of a multi lay up appliance, they please alot of patients.
Mike.
Sorry Cade, I said I would do a nice write up like yours. Time is of the eccsense here for me. I hope that anyone who can modestly handle acrylic can figure out the steps. Some of the carving tools I use are visible in the pictures.

labdude · 04-07-2008, 04:33 PM

Zebra Appliance.

RetainerDesigner · 04-07-2008, 07:16 PM

I like your Zebra pattern better than mine. Mine is just a black and white tire pattern. I noticed you keep you acrylic more "dryer" than I do. it mither just bee your WHite acrylic looking dry. Man! I hate working with white acrylic!

labdude · 04-07-2008, 07:55 PM

Dry enough to keep from slumping, wet enough not to cause prosity.
The laying in of the black is tough point. Make the cut, place in a small amount of black. Leave that way, make the rest of the cuts, applying a small amount of black. Don't fill in the black yet. What this does is keeps the white from slumping in over the black.
After all the cuts are down and slightly filled, go back to the first cuts, moisten and add remainder of black to fill cut. Each step, only a few cuts at a time.
Try it, experiment. It works just fine.

labdude · 05-18-2008, 08:50 PM

RetainerDesigner · 05-22-2008, 01:01 PM

Zebra everything has been popular here! I guess the assistants are pushing the design. No problem here I charge an extra $3.00 for the design

CShof · 11-25-2008, 06:17 PM

These retainers look amazing. I'm not in the ortho business but I've had to deal a few of these before. This may be a stupid question but is ortho acrylic different from the acrylic we use in denture labs? It looks like you can layer it on nice and slow without it drying up. Another stupid question, it does go into a pressure pot right?

The very few that I have done over the years we always just made them out of wax first. Pour it up in hydrocolloid in a pour flask then after boiling away the wax we'd just pour it in clear. If we needed color we would put monomer in a rubber bowl and soak the end of a Crayola Washable marker in it until it looked right. I bet that seems primitive to you guys, but what do you expect from a denture lab trying to make retainers right? lol

labdude · 11-25-2008, 07:28 PM

Hi CShof,
Acrylics are very different. The differences are notable even in ortho acrylics from maker to maker. Then colors, some are slightly harder. Some take longer to cure (glow colors).
No stupid qestions are ever asked here!!
We sometimes ask or say silly things in fun.
All these appliances must be cured under pressure. Heat speeds up the cure also. Cool models and cool acrylics allow for extended working times.
Mike.

04-07-2008, 07:16 PM	#3 (permalink)
RetainerDesigner Supporter Join Date: Oct 2007 Location: Stephenville, Texas Posts: 186 Gallery: 8 Rating: 0% (0) Rep Power: 2	I like your Zebra pattern better than mine. Mine is just a black and white tire pattern. I noticed you keep you acrylic more "dryer" than I do. it mither just bee your WHite acrylic looking dry. Man! I hate working with white acrylic! __________________ http://retainerdesigner.com My location

11-25-2008, 07:28 PM	#8 (permalink)
labdude Stellar Patrol Join Date: Oct 2007 Location: Cascades in Oregon Age: 55 Posts: 885 Gallery: 16 Rating: 100% (4) Rep Power: 2	Hi CShof, Acrylics are very different. The differences are notable even in ortho acrylics from maker to maker. Then colors, some are slightly harder. Some take longer to cure (glow colors). No stupid qestions are ever asked here!! We sometimes ask or say silly things in fun. All these appliances must be cured under pressure. Heat speeds up the cure also. Cool models and cool acrylics allow for extended working times. Mike. __________________ McKenzie Ortho. 888-996-0522 P.O. Box 23 Vida, Or. 97488

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04-07-2008, 07:55 PM	#4 (permalink)
labdude Stellar Patrol Join Date: Oct 2007 Location: Cascades in Oregon Age: 55 Posts: 885 Gallery: 16 Rating: 100% (4) Rep Power: 2	Dry enough to keep from slumping, wet enough not to cause prosity. The laying in of the black is tough point. Make the cut, place in a small amount of black. Leave that way, make the rest of the cuts, applying a small amount of black. Don't fill in the black yet. What this does is keeps the white from slumping in over the black. After all the cuts are down and slightly filled, go back to the first cuts, moisten and add remainder of black to fill cut. Each step, only a few cuts at a time. Try it, experiment. It works just fine.

05-18-2008, 08:50 PM	#5 (permalink)
labdude Stellar Patrol Join Date: Oct 2007 Location: Cascades in Oregon Age: 55 Posts: 885 Gallery: 16 Rating: 100% (4) Rep Power: 2

11-25-2008, 06:17 PM	#7 (permalink)
CShof Junior Member War In Iraq Champion! Classic Donkey Kong Champion! Sack Smash Champion! Frogger Champion! Join Date: Oct 2008 Posts: 26 Gallery: 0 Rating: 0% (0) Rep Power: 0	These retainers look amazing. I'm not in the ortho business but I've had to deal a few of these before. This may be a stupid question but is ortho acrylic different from the acrylic we use in denture labs? It looks like you can layer it on nice and slow without it drying up. Another stupid question, it does go into a pressure pot right? The very few that I have done over the years we always just made them out of wax first. Pour it up in hydrocolloid in a pour flask then after boiling away the wax we'd just pour it in clear. If we needed color we would put monomer in a rubber bowl and soak the end of a Crayola Washable marker in it until it looked right. I bet that seems primitive to you guys, but what do you expect from a denture lab trying to make retainers right? lol