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CreativeTech

CreativeTech

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28 1
#2
I wasn't sure which MIYO thread to put this in, so I'll leave it here.

Yesterday a doc was placing an anterior bridge with two pontics, one of which was #10 being a recent extraction. That area was shy of good compression so I needed to add a bit. Not wanting to effect surface texture, lustre, or value, I knew I had to fire way under my normal add-on temp. So I pulled out Structure Enamel & mixed in a little A & B shades till I achieved my desired chroma and added where needed, about 1mm. Fired to 800c with a 20 sec hold & it came out perfect. Created just enough compression and blended in with the rest of the porcelain just as though it was part of the original build, & since it was fired so low there was absolutely no effect to the rest of the ceramic. I suppose I should mention this was a PFM bridge layered with Creation CC. I didn't know if it would work, but now I do. And so do you.
 
K

KIM

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335 2
#3
I wasn't sure which MIYO thread to put this in, so I'll leave it here.

Yesterday a doc was placing an anterior bridge with two pontics, one of which was #10 being a recent extraction. That area was shy of good compression so I needed to add a bit. Not wanting to effect surface texture, lustre, or value, I knew I had to fire way under my normal add-on temp. So I pulled out Structure Enamel & mixed in a little A & B shades till I achieved my desired chroma and added where needed, about 1mm. Fired to 800c with a 20 sec hold & it came out perfect. Created just enough compression and blended in with the rest of the porcelain just as though it was part of the original build, & since it was fired so low there was absolutely no effect to the rest of the ceramic. I suppose I should mention this was a PFM bridge layered with Creation CC. I didn't know if it would work, but now I do. And so do you.
Thanks for sharing Danny, we're hearing alot about how MiYO Structure is really helping with last minute fixes, awesome! I know every furnace is different but we're firing Structure between 710-720c consistently, with nice results, you might be able to go quite a bit lower than 800 and still get a great result!? As far as the PFM part, this is my face right now, lol. It's strictly a CTE concern, nothing else as MiYO's CTE is about 2-3 points lower than Creation but glad it worked out! You'd know right away if it didn't!
 

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sirmorty

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112 4
#9
Not trying to be an ass.

But when I started looking at crowns under magnification I noticed some specs in my finished zirconia. Being a white spot from sintering or black spec from who knows where.

I believe it was from the wheels being used to adjust the crown. They left a residue even though I was steaming them before finishing.

I sandblast now at a very low bar. I know Jensen says not to but I just don't understand how how you can break the surface tension on the adjusted areas without it.
 
K

KIM

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335 2
#12
Not trying to be an ass.

But when I started looking at crowns under magnification I noticed some specs in my finished zirconia. Being a white spot from sintering or black spec from who knows where.

I believe it was from the wheels being used to adjust the crown. They left a residue even though I was steaming them before finishing.

I sandblast now at a very low bar. I know Jensen says not to but I just don't understand how how you can break the surface tension on the adjusted areas without it.
I totally get what you're saying about sandblasting sirmorty....If you're comfortable with it, go for it. It has nothing to do with MiYO, but we are hearing reports of it weakening 5Y ("Super translucent") Zirconia so we just want people to be aware. Again, you know what's working and what's not in your world so no worries on our end....
 
DentalTechTips

DentalTechTips

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127 3
#13
I totally get what you're saying about sandblasting sirmorty....If you're comfortable with it, go for it. It has nothing to do with MiYO, but we are hearing reports of it weakening 5Y ("Super translucent") Zirconia so we just want people to be aware. Again, you know what's working and what's not in your world so no worries on our end....
Agreed. I sandblast all my zirconia in non-functional areas. Helps to break up surface tension for application.
 
rkm rdt

rkm rdt

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9,457 254
#14
I am looking for a light cure additive that I can use chairside with MIYO.
If there is no such thing then Jenson needs to invent a light cured additive for the glaze paste.
 
K

kmart

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35
#15
Dont know if I should post this here or start a Miyo thread but here goes! some of my recent miyo cases

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this wasn't my wax up... different lab waxed this case and doc wanted it copied


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sidesh0wb0b

sidesh0wb0b

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1,523 29
#16
Dont know if I should post this here or start a Miyo thread but here goes! some of my recent miyo cases

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this wasn't my wax up... different lab waxed this case and doc wanted it copied


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very nicely done!
question: how are you removing crowns from the model before firing them?
 
sidesh0wb0b

sidesh0wb0b

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1,523 29
#18
glaze them on the peg using putty
im talking structure and coloring material. especially on multiple units i prefer doing the work all at once on the model as opposed to one crown at a time. the difficulty is being able to handle them afterward
 
rkm rdt

rkm rdt

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9,457 254
#19
im talking structure and coloring material. especially on multiple units i prefer doing the work all at once on the model as opposed to one crown at a time. the difficulty is being able to handle them afterward
You probably would have to create a handle in your cad design then.
I've done it before but freehand is quite simple with full contour.
 
sidesh0wb0b

sidesh0wb0b

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1,523 29
#20
You probably would have to create a handle in your cad design then.
I've done it before but freehand is quite simple with full contour.
what ive been doing is working on the sectioned model. since 95% or more of the structure is on the facials and incisals, i push out the die when im done, grab the crown on the contact areas with college pliers, and then put it on a peg
 
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