Stratasys' MED610 clear bio-compatible dental material is rated for up to 24 hours of contact with mucous membranes, and can be used with the Objet30 OrthoDesk printer to make devices such as customized surgical guides for dental surgery. (Source: Stratasys)
Stratasys didn't give any details on the 3D scanning software used. But a dental lab I spoke to that makes single-piece crowns and bridges, not models, using a different vendor's 3D printers mentioned to me that those printers talk to STL files, apparently a standard file format in 3D printing now, at least for dental applications.
There is another area where 3D printing makes sense, Elizabeth -- prototypes. Design News has covered 3D applications related to prototypes. Plus, comments on the 3D printing stories indicate that 3D printing can actually save money as companies produce prototypes.
Great question! I was wondering the same thing. Seems like that could be a greater cost than the "printing". Maybe that's why all of the analysts are bearish and assess Stratasys as a Sell right now? I wish someone had the answer to this question.
Hi, Ann- we haven't talked for a while; In the time gap I've learned about three new 3D processes I hadn't previously been aware of --- just FYI (,,,but I bet you already know these,,,)
1. MakerBot – Yes, I heard of them, but recently saw & handled their FDM parts and learned the apparatus is only $2,200 to own. It prints ABS in .004" layers [100 microns]. Fantastic capability at that price.
2. 3D-Touch - Also FDM, also runs ABS, also .004", but a little higher priced apparatus at $3,900. (So many similar features considered, I think Maker-Bot may have them beat).
3. EnvisionTec, based in Germany (and Detroit) makes a printer using a patented technology called voxilation (volume-pixilation). It seems to be a cross between FDM and Objet PolyJet printing with very fine Z-step resolution at .001" [25 microns]. While Objet has long had superior Z resolution (about half that much at 10 microns), the compelling point was the machine cost was advertised at $40,000, significantly lower than previous Objet prices. That is, until I read your article showing Objet now at $39,000. Wondering if EnvisionTec forced Objet to that price-point-?
I know what you mean, Rob. I personally don't see the excitement around 3D printing, but now that it's starting to be used for more useful purposes, I can see the draw. In my mind it seemed more like a hobbyist, self-indulgent thing--like a friend just told me he is going to provide files online so people could 3D print some of his company's designs at home for fun. But when the auto industry and now the dental industry is starting to use 3D printing as a way to make things cheaper and more efficient, it makes more sense, as you point out.
I agree, Elizabeth. In many instances, the 3D printer seemed like a produict in search of a solution. Cool technology, but really, do we need one? The idea of smaller dentists using this makes a ton of sense.
If you look at the galvanic table of metals, gold is way up near the top, stainless steel is below it. Stainless steel can be "passivated" to bring it closer to Gold, but passivation is a layer only a few atoms thick, one scratch and it will rust. The body has water and salt, condictive, just add two different metals and you get a battery, and one of them will corrode. Braces are "temporary" and removable for cleaning.
The Chinese put melamine in their infant formula to save money, I wouldn't use them as an example of healthy frugality. Every Russian I have ever met had a mouth full of gold crowns, so I'm not sure about that information.
If you want inexpensive but safe go ceramic(zirconium). Not galvanically active, nontoxic, easy to machine. The amount of gold in a crown is just a few grams, you couldn't fit an ounce in your mouth if you got all your teeth capped. Better to save money somewhere else and stay healthy.
From my reading, dentists in China,Russia and other countries that don't have money to waste on gold seem to do just fine with non-precious alloys. (unless, I suppose, their patients routinely gargle with battery acid) It is true that pure nickel (alloy 200) will cause an allergic reaction in a small minority of people, but even for them, incorporating the nickel in alloys such as Inconel binds up the nickel so it apparently is not a problem. The amount of corrosion, while perhaps not "zero" is insignificant during a human lifetime. Remember that orthodontic braces are made of 300-series stainless which is far less corrosion resistant than the Inconel group yet they and don't dissolve in people's mouths. Saliva just ain't that nasty.
It is my understanding that a main attraction of gold is that the capital equipment to cast it into dental parts is quite cheap. Thus the dental lab gets off with minimal expense and passes the high cost of the metal on to the patient. One would hope that CNC technology would change that.
I think this is an excellent point. I have had several crowns over the years and my dentist is very aware of proper color match. Is there a material applied to the crown or denture after modeling or is the color dependent upon the color of the 3-D material itself? At any rate, this seems to be an ideal application for 3-D printing and another example of technology being used to benefit mankind. I think it's great. Thank you Ann for posting this piece.
A new service lets engineers and orthopedic surgeons design and 3D print highly accurate, patient-specific, orthopedic medical implants made of metal -- without owning a 3D printer. Using free, downloadable software, users can import ASCII and binary .STL files, design the implant, and send an encrypted design file to a third-party manufacturer.
A recent report sponsored by the American Chemistry Council (ACC) focuses on emerging gasification technologies for converting waste into energy and fuel on a large scale and saving it from the landfill. Some of that waste includes non-recycled plastic.
Capping a 30-year quest, GE Aviation has broken ground on the first high-volume factory for producing commercial jet engine components from ceramic matrix composites. The plant will produce high-pressure turbine shrouds for the LEAP Turbofan engine.
Seismic shifts in 3D printing materials include an optimization method that reduces the material needed to print an object by 85 percent, research designed to create new, stronger materials, and a new ASTM standard for their mechanical properties.
A recent study finds that 3D printing is both cheaper and greener than traditional factory-based mass manufacturing and distribution. At least, it's true for making consumer plastic products on open-source, low-cost RepRap printers.
For industrial control applications, or even a simple assembly line, that machine can go almost 24/7 without a break. But what happens when the task is a little more complex? That’s where the “smart” machine would come in. The smart machine is one that has some simple (or complex in some cases) processing capability to be able to adapt to changing conditions. Such machines are suited for a host of applications, including automotive, aerospace, defense, medical, computers and electronics, telecommunications, consumer goods, and so on. This discussion will examine what’s possible with smart machines, and what tradeoffs need to be made to implement such a solution.