Restoring a Full Arch Case with Grammetry

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This video is going to show the records for restoring a full arch case using the OptiSplint. Please note that this is a restorative case, not a surgical case. Let’s go through the records. These are kind of obvious, but we require upper and lower scans of the complete arch. This case is a lower hybrid with natural upper teeth, so the lower arch is what we’re going to replace. The doctor scanned the teeth and scanned the tissue part of the prosthesis on the lower. We need to be able to orient other files into this  bite. So that’s the first scan the doctor took. Then the prosthesis was removed and the doctor performed a wash impression. Now we have the tissue, and this  will be brought into the scans that we just showed using the tooth points.

Now we have the lower in occlusion. You’ll notice that, on the intaglio, the doctor used the OptiSplint scan bodies. These are the little plastic gray scan bodies that come in  an OptiSplint kit. They simply plug into a Nobel compatible coping and this gives us the reference for the implant position. It’s not a metal to metal exact reference, so it’s not like a traditional scan body, but this allows us to put the prosthesis in the right place according to a tissue scan if a tissue scan is provided. Please note that when you do a wash impression, you really don’t need a tissue  scan; it’s optional.

Then the doctor took the OptiSplint out of the mouth, did  the luting process, did a really nice job here, and then scanned the OptiSplint outside of the mouth with their Itero scanner. You willsee that there are some areas that are missed; you really want to get the full scan body, but if most of it is captured that will work. However, you really want to capture as much of that as possible. We don’t need the area around it, like the table, the hand, or whatever the Optisplint is sitting on. We don’t need the whole thing, so just scan as much as you can. Another key to the OptiSplint is that you will want to target the luting material just underneath the OptiSplint in either blobs or a contiguous motion like this where it’s all connected, but you don’t really need to load up the entire honeycomb frame here.

We just need it luted to each one of the OptiSplints. This is a nice  scan; that’s just about exactly what they should look like. You really could get a little bit more here and there, but this will work. And based on these records, we will design a prosthesis and send the file to print.


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