How to Copy a Denture

Table of Contents

When you need to copy a denture

Let’s learn how to copy a denture in this lesson. There are various reasons why we might need to make a new denture, including a broken denture or gum tissue resorption. In these cases, if you can duplicate the existing denture, you can create a new denture easier. Let’s look at how to easily copy the old denture that the patient is using.

Understanding the scanning process for denture copy

To copy a denture, you need to scan the top and the bottom of the denture and merge them into one. There are several ways to do this. To make it easier, you first need to understand the scanning process.


I am going to show you two methods of performing a scan. The first step is deleting common data after matching and another one is merging the data of two sides after matching. Prep die scanning and wax-up scanning are examples of deleting common data. Additional scans or interproximal scans are examples of merging the data after matching. 

Copying a denture - merging two scans into one.

Let me show you how to copy the denture by merging data of two sides and producing complete scan data. 
First, let’s create a denture copy project at ScanApp Start. After creating “denture test”, start scanning by choosing any tooth.

1st method - Additional Scan

Select the Solid model in the scan setting window. Place the old denture in the scanner, like in the image below. Scan it.

One of the big advantages of DOF’s FREEDOM scanner is that you don’t need to fix the model. Just place the denture on the plate without fixing it. Proceed with the scan.

I have scanned the top side of the denture and I also need to scan the bottom side. In this case, click the additional scan and match button and then turn the denture over. Place the denture in the scanner, like in the image below to scan the bottom side of the denture. Scan it.

The scan is complete. I will match the data with the three points matching. Can you see the matching icon in the red square? 

Click the icon. Move the models in the same direction and click the common three points like the image below.

The matching is complete. After clicking the check button, the data of two sides are merged into one complete denture. Both the top and bottom sides are well copied.

 Here is the data all completed with the build. The top and bottom sides are neatly copied.

2nd method - Interproximal Scan

The second method is merging the data of two sides, so I will scan the top and the bottom sides separately. The top side is scanned as a solid model and the bottom side is scanned as an interproximal scan.

The bottom side is scanned well with the interproximal scan. At the matching stage, match the two sides’ data.

If the matching is complete, proceed with the build. The result is the same as the additional scan and match that I did before.
Like these, there are several methods to copy the denture. You may also use the expert mode. Or you may devise and use other methods. All you need is merging the data of two sides into one result. Now, the data obtained in these ways may be 3D-printed or milled. Copy the denture any way you’d like.

How do you use this copied denture?

Then, how do you use this copied denture? Send it to the clinic and fill it with silicone to create a new impression. Or the bite can be obtained easily because it is the patient’s denture.

I have demonstrated how to scan the old denture in this lesson. Thank you for your time to read my lecture!


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