How would you scan this?

[DreN4do]

Hi guys.

Was wondering, how you all would scan a case like this? It's the number 27 with partial denture.
I scanned it without the denture first, then scanned a pre-op with the denture. I'm trying to figure out what's the best way, so when I design the tooth, I don't want the finishing guy to grind the tooth down too much to fit in the denture.

Any ideas?

 

[DreN4do]

 

[rkm rdt]

You can always wax up the crown to full contour and scan it.Then copy the waxup.

 

[2thm8kr]

You can always wax up the crown to full contour and scan it.Then copy the waxup.

What is this wax you are talking about?

 

[rkm rdt]

What is this wax you are talking about?

If you're going to mix die stone, you might as well spark up the old bunsen burner.

 

[JMN]

View attachment 33685 View attachment 33686 View attachment 33687

Search results for query: Crown under partial

dentallabnetwork.com

 

[Getoothachopper]

I'm not sure what i'm missing here, but I would scan the entire thing with the denture in place then remove the prep die and do a bunch of add scans to get all the internals of the partial . Then scan the die on it's own ,,,,,,mesh together @ the end design the crown with the denture in place . As long as you get it pretty close when you cut the occlusal & adjacents it should be perfect and need no adjustments .

 

[Sevan P]

1. Check scan neighborhood in first step.
2. Place partial on model and scan.
3. Remove die and scan neighborhood.
4. rest is as normal.

Be sure to spray.

here is how it should go.

 

[DreN4do]

1. Check scan neighborhood in first step.
2. Place partial on model and scan.
3. Remove die and scan neighborhood.
4. rest is as normal.

Be sure to spray.

here is how it should go. View attachment 33700 View attachment 33701 View attachment 33702 View attachment 33703 View attachment 33704 View attachment 33705

Thanks Sevan

pretty much how i did it too. worked out great, i'll show you what the finished product looks like once the finishing guy is done with it.

 

[DreN4do]

 

[DreN4do]

Here is the finished product

 

[Sevan P]

Pre op works as well, but with it as part of the model you actually get the collision lines active. Either way works man, good job.

 

[Car 54]

DreN4do, not to bad of a thread and result, for a guy who dresses in pink

 

[2thm8kr]

DreN4do, not to bad of a thread and result, for a guy who dresses in pink

Said the monkey with lipstick and devious grin.

 

[Car 54]

Touche

 

[rkm rdt]

must resist posting to this thread.....

 

[Car 54]

Lol...I can only imagine

 

[kristian]

I use TRIOS for cases like this. Scan without partial, lock prep and contacts, add partial, scan it in place, then scan relevant interfaces just with the partial in hand. This way getting clasps and other features is pretty simple.

This way when designing, you have distance heatmaps and cutting to contacts to aid you in getting the design very close.

 

[rkm rdt]

Take your Trios one step further and scan chairside using the original tooth as a prepreparation scan.

The biggest advantage is that the patient leaves with the partial and you don't.

 

[kristian]

Take your Trios one step further and scan chairside using the original tooth as a prepreparation scan.
The biggest advantage is that the patient leaves with the partial and you don't.

Yeah, we heard this originally from a dentist with a scanner and I adapted it to lab workflow. We get a few cases done like this straight from IOS, but most partial cases that come to the lab are traditional impressions.