|I’ve always loved the idea of a 3d printed immediate transitional temporary for fixed hybrids because they’re nearly free to fabricate but the Achilles heel was the strength……I’ve had them snap in half because they’re more brittle. Well, I think we now have a solution that makes it viable.
This post shows how I used a Trilor Arch Bar to give strength to an immediate prosthesis. We are now selling these at BSB and there are literally tons of possibilities with these. The big benefit is that it is incredibly strong, even in small dimensions and that it can be trimmed and customized chairside.
This is just a demo model and not a clinical case so don’t start with me about it being an All On 3!
You could take a piece of pink wax and index the positions of the multi unit cylinders.
For my prosthesis, I just 3d printed a denture that I designed in the soon to be released Blue Sky Bio Denture Software. But this could have just as easily been the patients existing denture hollowed out or a lab fabricated shell denture. Use whatever you have at your disposal.
In this example, I picked up the bar first, then imaged and designed the denture. Obviously, you will not be able to do that with an immediate conversion because it takes time to design and print. But you could do it and deliver later that day or next morning. The big advantage is that it will make your pickup more precise and maintain bulk of material so you’re not doing a lot of shaping outside the mouth
You can see how precise the “bar” fits inside the printed denture.
Once the pickup is complete, you can cut off the flanges, and shape the underside to be cleansable
The weakest link here is not going to be fracture of the prosthesis but rather chipping of individual teeth. For this reason, I wouldn’t make my definitive fixed hybrid by this method. Here’s where we just have to wait for our material chemistry to catch up to the printing technology. However for a temporary prosthesis, this is an more than adequate and it’s very affordable to create.
My all in costs here were less than $100 for this transitional prosthesis and
|This is but one application of these arch bars but there are so many others. You could make definitive bars with Locator attachments. You could also make definitive prosthesis with these also. Would love to know your thoughts!|