As you can see in the Main Camera Preview, this has not changed anything.

The reason for this is that the 2nd sphere appears exactly at the same position as the 1st sphere.
So we need to offset its position. Select the Offset node above the 2nd Gaussian tooth node and set its Offset Z parameter to -8.

You should now see a different shape in the Main Camera preview, which kind of resembles a Metablob created with 2 spheres.

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