Crisalix offers a very precise tool that can be used to fine-tune or to specifically simulate some procedures, called Curves tool. Because of the nature of this tool and its applications, the use of the Curves tool is recommended for advanced definition after you have simulated a procedure using the specific dedicated tools.

This procedure assumes that you have uploaded the relevant photos, created the face 3D model, and simulated some procedures with the dedicated tools.

1. Once finished your simulation with the specific anatomic tool, select Curves on the simulator floating menu.
2. From the Curves menu, select one of the four options of the face view.
3. Observe the contour lines drawn on the patient's 3D.
   

   A contour line is always related to a range, meaning that every single movement affects a bigger or smaller area of the body. Use the slider under Range to define the range of the movement, that is, the area affected.

    
4. Select, one by one, the lines you want to deal with and move them using the virtual joystick or dragging the line with your mouse or finger.
   Observe that the selected line becomes red.
   

   Remember to enable the symmetric movement if you want to simulate exactly the same movement on both sides.

    
5. Use the Undo or Redo buttons at the bottom of the simulator floating menu to undo or redo the last changes respectively.
6. Move and rotate the "after" 3D model to analyze the results of your simulated procedures.
7. Compare the Before and the After 3D images for better awareness of the procedures simulated.
   Read the article Comparing the Before and the After images to know the steps.
8. Select Save on the top right corner to save the changes.
9. Share the resulting simulated 3D with the patient. 
   Read Granting access to patients so that they can see their simulations to find out how.