Typical steps for cast rpd

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Denture Dude

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Today I started charging for a duplicate model when I make custom trays for rpds. My docs want a model back when they get the tray so they can eyeball it for preps and then they also use the model to make their design (an idea I discouraged, even with all of this the frames are often occluding on preps). Up till now I’ve painstakingly saved and cleaned the models and just included them with the tray. Takes as much time as a dup model. So. Dup charge it is.

My main question though. 1) What do you guys see? What are your docs doing when it comes to rpds? Are they just sending you an impression in a stock tray? And, if you had a magic wand, how would you like to see the steps executed? Text book answers are fine. I’m more interested in real world experience.
 
Rtyrelw

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I don't understand what you mean with duplicating models? We don't duplicate the models when we're making them standard analog way we put a wax spacer down and then just wash the model and it doesn't take very long at all. The custom tree comes out and everything is sent back as they got it there's no extra model but the model is cleaned which is not very painstaking. Alternatively we have doctors who are okay with us doing digital custom trays which are a lot easier. You scan it print it and run a scotch brighter over it it is easier faster and doesn't even have to touch the model except to check passivity. Whether they're doing a full denture a partial denture a large unit case that would be how I would make my custom trays. If the doctor decides to write on the models to draw his rpds I personally at my lab don't do the rpds in house so it's one more thing I send out to the lab that fabricates my rpds which would either be Mabel or Chrome works. I've never had them complain about a model or a picture being an issue. I guess I fully don't understand what exactly your problem is? Am I responding to what the problem is or am I just talking haha?
 
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Denture Dude

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I don't understand what you mean with duplicating models? We don't duplicate the models when we're making them standard analog way we put a wax spacer down and then just wash the model and it doesn't take very long at all. The custom tree comes out and everything is sent back as they got it there's no extra model but the model is cleaned which is not very painstaking. Alternatively we have doctors who are okay with us doing digital custom trays which are a lot easier. You scan it print it and run a scotch brighter over it it is easier faster and doesn't even have to touch the model except to check passivity. Whether they're doing a full denture a partial denture a large unit case that would be how I would make my custom trays. If the doctor decides to write on the models to draw his rpds I personally at my lab don't do the rpds in house so it's one more thing I send out to the lab that fabricates my rpds which would either be Mabel or Chrome works. I've never had them complain about a model or a picture being an issue. I guess I fully don't understand what exactly your problem is? Am I responding to what the problem is or am I just talking

Ya, you answered my question.
 
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Denture Dude

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Guess I’m doing it wrong. I put two sheets thickness on the dentition and one sheet on tissue. I draw a line with a pencil and slather it all with Vaseline. Teeth break. All that Vaseline and wax has to come off etc. I just think I could dup just as fast (hand on time) 🤷‍♂️
 
Rtyrelw

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It's not much different. But try a digital one if you have a 3D printer. You just scan it tell it how much space you want it to have it takes out all undercuts and you print it.
 
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Denture Dude

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So, you so understand, you do feel my pain. Thank you.
 
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Denture Dude

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I love the digital suggestion. I definitely need to get w the program.
 
Doris A

Doris A

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After you make the tray, put it in the boilout for a few minutes before you attempt to take it off of the model. The tray will come right off and your headaches will be gone. The model will be intact.
 
CoolHandLuke

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My docs want a model back when they get the tray so they can eyeball it for preps and then they also use the model to make their design (an idea I discouraged, even with all of this the frames are often occluding on preps).
charge extra for proceeding with a design drawn on a dupe.

bad idea. very bad idea.

always design from a master model. one made with proper impression material or IOS data. dupe models are not accurate enough unless you skipped hydrocolloid and went straight to 2part silicon.
 
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Denture Dude

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charge extra for proceeding with a design drawn on a dupe.

bad idea. very bad idea.

always design from a master model. one made with proper impression material or IOS data. dupe models are not accurate enough unless you skipped hydrocolloid and went straight to 2part silicon.
Well, Im talking about docs that want to design their own frames. No way Im giving them the master model to scribble on. Im sure the frame lab would love that. Its just a reference for the design not to produce the frame. Id like to get away from allowing docs to design at all as, the last time I checked, surveying etc is nec to determine best design.
 
CoolHandLuke

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no matter who designs the frame or how, it needs to be done on the master, not a dupe.
 
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