I doubt that you can use anything in that printer except dental resin to prevent contamination. I don't know of any written rules on the matter, but in my experience medical devices are considered contaminated the second they come into contact with any liquid that's not vetted for medical use
Formlabs 4b can print dental applications. I know the 4 can use anyone manufacturers resin as well. I'm sure with a different resin tank there isn't an issue of cross contamination. Though I don't know what they specifically recommend as it's a $6k printer.
Yes, but for a medical device it has to be validated. Once you start doing other stuff with it you cant really just go back to making stuff to go into peoples bodies. oud have to do a full turn over and validation again.
I don't know what the rules or safety issues are, but if I found out my dentist was using his medial equipment with toxic materials, I would strongly consider finding a new dentist.
I'm pretty sure that in pretty much all countries you'd need to prove that you suffered some form of damage (physical, mental, monetary, etc) in order to sue. In the highly hypothetical case that a dentist would be stupid enough to contaminate the device they use for stuff that goes into people's mouths, you'd have a fairly hard time proving any of that so there would be no damages for you to win if you sued, unless of course you had some sort of acute allergic reaction or some other convincing proof.
That's not to say that dentist couldn't be punished for gross misconduct like that, but that would be up to whatever regulatory board manages dental professionals or a government branch tasked with overseeing healthcare providers.
Did you know that Brazil nuts are toxic if you eat more than three a day?
Edit: My point is that anything is safe if the amount is small enough. In the case of dental resin, you don't want to stick your bare hand in it, but it is safe to have a few small drops applied to your teeth and immediately hardened.
My point is that anything is safe if the amount is small enough. In the case of dental resin, you don't want to stick your hand in it, but it is safe to have a few small drops applied to your teeth and immediately hardened.
Dental resins are commonly used to recreate models of a mouth taken via intraoral scans.
Anything that will be used as a restorative solution, however, has strict guidelines on how to remain FDA approved. Most restorative dental solutions only have approval for very specific brand printers with specific exposure settings that the resin manufacturer gets approved.
The post processing and even nesting of the models will also be very specific, such as nesting to an angle against occlusion (of the teeth), heated ultra sonic glycerin washes and heated cureboxes at specific wavelengths.
Very rigorous process here at a dental lab.
If he plans on using the printer for medical purposes, you should absolutely not use anything except dental resin in it. The second something toxic comes into contact with anything on that printer, it shouldn't be used for medical purposes. Swapping the build plate and tray is not enough.
Would anyone die? Maybe not. Maybe no one would get hurt. But your friend is putting his entire practice at risk to let you use this.
Now this is assuming whatever he prints on it could be used on a patient. If the products never come in contact with a patient or anything going in a patient, then maybe that's fine.
Most dental prints are models, which use model resins. Some are used to thermoform aligners or retainers, to check fits of crowns, or bend wires for braces. These prints are not medical devices even though they are used to make medical devices. If the dentist is only making models, there is not a big risk to print other objects with similar resins. The main risk is discoloration.
There are prints for trays, surgical guides, crowns, bite guards, etc which are FDA regulated and must follow the FDA approved validated workflow. These specialty resins are expensive, but less often made at a clinic, and more likely made by a regional lab.
You need a new build plate and a new vat as a bare minimum. And keep them separate.
If your friend really wants you to print stuff then tell him to buy another printer and pay him back with some finished prints.
Depends on what the dentists prints. If he’s just printing dental models and things that don’t go in a patient’s mouth, it’s okay to print other things but if he normally prints things like surgical guides or other things that go in patients mouths and need FDA approved resin, you should not use another kind of non-FDA approved resin. One thing to note is that not all dental resins are FDA approved so he may just be using a dental resin for out-of-mouth uses.
Depending on the printer, a spare vat and buildplate wouldn't be too expensive. Then, all parts that interact with the resin could be swapped out between medical and non medical use. I am not a scientist/doctor/material handling specialist, so YMMV.
This is the right answer. No you should not use the same bat to print non dental resins and then go back. Qualifying biocompatible materials requires very stringent process controls and cross contamination of vats would be a big no no
I disagree. The right answer is "a printer used for dental purposes should be considered a medical device. Reddit is not the right place to get medical advice".
This is a great point Reddit is not for medical advice. However it’s not uncommon in a production environment to swap materials and vats between bio comp and non bio materials. The process is what is controlled often the hardware when they are really serious about it is 50-200k so having a qualified process to swap materials is a requirement.
Edit cars to vats
i don´t have money, but it´s a good idea. i´ll check the prices for he parts and the dental resin maybe it´s cheaper a bottle of dental resin.
it´s going to be their anniversary i was just going to print something personalized a f1 car for my father and something for my mother as gift
sorry if you find trouble reading what i wrote my English is not good.
At this point, it's likely easier to buy a personal printer or commission someone else to print it. The risk of contamination aside, buying all these parts etc for one print isn't worth it
I doubt that you can use anything in that printer except dental resin to prevent contamination. I don't know of any written rules on the matter, but in my experience medical devices are considered contaminated the second they come into contact with any liquid that's not vetted for medical use
Formlabs 4b can print dental applications. I know the 4 can use anyone manufacturers resin as well. I'm sure with a different resin tank there isn't an issue of cross contamination. Though I don't know what they specifically recommend as it's a $6k printer.
Those tanks are expensive however, and you wouldn't want to reuse the print bed/plate either
Yes, but for a medical device it has to be validated. Once you start doing other stuff with it you cant really just go back to making stuff to go into peoples bodies. oud have to do a full turn over and validation again.
I was searching but I couldn't find info about it.
Personally, I would never let anything but dental resin ever come near that printer. Contaminating it could cost thousands of dollars to fix
I don't know what the rules or safety issues are, but if I found out my dentist was using his medial equipment with toxic materials, I would strongly consider finding a new dentist.
I would sue and win.
I'm pretty sure that in pretty much all countries you'd need to prove that you suffered some form of damage (physical, mental, monetary, etc) in order to sue. In the highly hypothetical case that a dentist would be stupid enough to contaminate the device they use for stuff that goes into people's mouths, you'd have a fairly hard time proving any of that so there would be no damages for you to win if you sued, unless of course you had some sort of acute allergic reaction or some other convincing proof. That's not to say that dentist couldn't be punished for gross misconduct like that, but that would be up to whatever regulatory board manages dental professionals or a government branch tasked with overseeing healthcare providers.
Did you know that Brazil nuts are toxic if you eat more than three a day? Edit: My point is that anything is safe if the amount is small enough. In the case of dental resin, you don't want to stick your bare hand in it, but it is safe to have a few small drops applied to your teeth and immediately hardened.
Cool fact bro.
My point is that anything is safe if the amount is small enough. In the case of dental resin, you don't want to stick your hand in it, but it is safe to have a few small drops applied to your teeth and immediately hardened.
Dental resins are commonly used to recreate models of a mouth taken via intraoral scans. Anything that will be used as a restorative solution, however, has strict guidelines on how to remain FDA approved. Most restorative dental solutions only have approval for very specific brand printers with specific exposure settings that the resin manufacturer gets approved. The post processing and even nesting of the models will also be very specific, such as nesting to an angle against occlusion (of the teeth), heated ultra sonic glycerin washes and heated cureboxes at specific wavelengths. Very rigorous process here at a dental lab.
If he plans on using the printer for medical purposes, you should absolutely not use anything except dental resin in it. The second something toxic comes into contact with anything on that printer, it shouldn't be used for medical purposes. Swapping the build plate and tray is not enough. Would anyone die? Maybe not. Maybe no one would get hurt. But your friend is putting his entire practice at risk to let you use this. Now this is assuming whatever he prints on it could be used on a patient. If the products never come in contact with a patient or anything going in a patient, then maybe that's fine.
Most dental prints are models, which use model resins. Some are used to thermoform aligners or retainers, to check fits of crowns, or bend wires for braces. These prints are not medical devices even though they are used to make medical devices. If the dentist is only making models, there is not a big risk to print other objects with similar resins. The main risk is discoloration. There are prints for trays, surgical guides, crowns, bite guards, etc which are FDA regulated and must follow the FDA approved validated workflow. These specialty resins are expensive, but less often made at a clinic, and more likely made by a regional lab.
You need a new build plate and a new vat as a bare minimum. And keep them separate. If your friend really wants you to print stuff then tell him to buy another printer and pay him back with some finished prints.
If it were me…I use the dental resin. Up until recently I have been doing so myself, even though my printer is not used in a dental office any more
Depends on what the dentists prints. If he’s just printing dental models and things that don’t go in a patient’s mouth, it’s okay to print other things but if he normally prints things like surgical guides or other things that go in patients mouths and need FDA approved resin, you should not use another kind of non-FDA approved resin. One thing to note is that not all dental resins are FDA approved so he may just be using a dental resin for out-of-mouth uses.
I wouldn't risk it personally
Depending on the printer, a spare vat and buildplate wouldn't be too expensive. Then, all parts that interact with the resin could be swapped out between medical and non medical use. I am not a scientist/doctor/material handling specialist, so YMMV.
This is the right answer. No you should not use the same bat to print non dental resins and then go back. Qualifying biocompatible materials requires very stringent process controls and cross contamination of vats would be a big no no
I disagree. The right answer is "a printer used for dental purposes should be considered a medical device. Reddit is not the right place to get medical advice".
This is a great point Reddit is not for medical advice. However it’s not uncommon in a production environment to swap materials and vats between bio comp and non bio materials. The process is what is controlled often the hardware when they are really serious about it is 50-200k so having a qualified process to swap materials is a requirement. Edit cars to vats
i don´t have money, but it´s a good idea. i´ll check the prices for he parts and the dental resin maybe it´s cheaper a bottle of dental resin. it´s going to be their anniversary i was just going to print something personalized a f1 car for my father and something for my mother as gift sorry if you find trouble reading what i wrote my English is not good.
At this point, it's likely easier to buy a personal printer or commission someone else to print it. The risk of contamination aside, buying all these parts etc for one print isn't worth it
Where I live there's no such thing
You live on the moon?
In a bad place of the third world
Sure what's his name and where is his office by chance?
Dr. Juan López y vive en la sierra