📖 [Crown Fit] Workflow

The workflow in Medit Crown Fit includes 6 steps. There is no specific order in which the steps should be used; users can change between them as needed.

Workflow Steps

	Overview	Check the imported scan data. Add or delete data used for the current project. Click the icon of the step you are working in to enter this step.
	Crown Alignment	Align the milled/printed prosthesis with the CAD data to fit it on the prepared teeth data.
	Crown Fitting Test	See the deviation results between the prepared teeth data and the milled/printed prosthesis data to check the crown fitting.
	Deviation Display	See the deviation results between the CAD and milled/printed prosthesis data.
	Data Transformation	Adjust the milled/printed scan data along the axes.
	Measurements	Create section lines to measure distances, angles, and lengths and calculate areas on the 3D data.

Overview

In this step, users can review data that has been automatically imported from the case. They can also add or remove any data as needed for the current project.

To enter this step, click the icon of the step you are currently working in.

How to add data to the project

To bring in additional data for the opened project, use the import features provided at the bottom of the screen. Using them, you can import data from the other Medit Link cases, any locally stored files, or even a folder with data from exocad or 3Shape. New data will be organized as a separate group in the Data Tree.

How to remove data from the project

To remove data from the current project, use the "Delete Data" feature at the bottom. In the opened window, select the data you want to remove and click "Confirm."

Crown Alignment

In this step, the user can align all imported data to see a simulation of the crown fit test. Aligning data ensures that it is properly positioned and integrated for further analysis.

• First, you must align all crown data - the CAD design and the milled/printed crown scan data. This can be done automatically using "Align Crown Data" or manually using "Align Selected Areas."

When aligning crown data manually, you need to select the same areas on the two data to complete the alignment.

Use one of the below selection tools to designate an area on the data and click "Apply."

	Smart Single Tooth Selection	Automatically select the area of a single tooth with a click. You can click or drag on the tooth.
	Polyline Selection	Select all entities within a polyline shape drawn on the screen.
	Circle Selection	Select all entities within the circular area.
	Brush Selection	Select all entities on a freehand-drawn path on the screen. Only the front face will be selected. The brush comes in 3 different sizes.
	Apply	Complete alignment based on the selected areas.

If needed, the selection tools can also be used to deselect by turning on "Deselection Mode." You can also remove all selections at once with "Clear All Selection."

	Deselection Mode	When on, the user can deselect areas using selection tools.
	Clear All Selection	Clear all selected areas.

• If the alignment is not satisfactory, use the "Detach Data" feature to start over.

Crown Fitting Test

This step shows the deviation between the prepared teeth and milled prosthesis data through color to help ensure the crown's fit. Align your crown data before working in this step.

• The color map is turned on by default once you enter this step. Colors other than green signify areas where your reference and target data overlap. Refer to the color bar on the left while reviewing crown fit test results.

• Click on any spot of higher deviation to annotate it with an exact deviation measurement. If you want to delete any measurement results, activate the "Delete Measurement Results" feature and remove the annotation with a click.

• Use "Create Sections" to draw section lines on the data by picking two points or click-and-drag. Section lines will show you the outlines of both reference and target data; hide data to see them clearer. All created section lines will disappear once the feature is deactivated, yet they will be saved and available in the Measurement step.

• If needed, you can change what data is assigned as reference and target using "Reassign Data."

Deviation Display

This step shows the deviation between the CAD design and milled prosthesis data through color to help check for parts needing alterations on the milled prosthesis. Align your crown data before working in this step.

• The color map is turned on by default once you enter this step. Review areas with high deviation in more detail to check whether the milled prosthesis requires additional adjustment.

• Click on any spot of higher deviation to annotate it with an exact deviation measurement. If you want to delete any measurement results, activate the "Delete Measurement Results" feature and remove the annotation with a click.

• Use "Create Sections" to draw section lines on the data by picking two points or click-and-drag. Section lines will show you the outlines of both reference and target data; hide data to see them clearer. All created section lines will disappear once the feature is deactivated, yet they will be saved and available in the Measurement step.

• If needed, you can change what data is assigned as reference and target using "Reassign Data."

Data Transformation

This step allows users to adjust the size of the milled crown data by scaling it along the X, Y, and Z axes.

• Upon entering, you are prompted to select data for transformation. Choose your milled crown data and click "Confirm."

• By default, scaling is set to apply uniformly across all axes with a single value. To set different values for each axis, uncheck the "Uniform" box.
  Try different values to see how the data size changes accordingly.

• You can revert to the default values by clicking "Reset."

• When you have decided on the required scaling value, click the "Apply" icon to permanently apply changes to the data across all steps.

Measurement

This step provides tools for taking various measurements that can assist data analysis, including distances, angles, and areas of the 3D data. Users can take measurements on any data imported for the project.

• If you have section lines created in previous steps (Crown Fitting Test or Deviation Display), they will be available here. To delete these section lines, enable the "Delete Measurement Results" feature and drag and drop over the area containing those lines, or click a specific line you do not need.

• You can create new section lines using the "Create Sections" feature provided in this step. If you want to orient the data view perpendicularly to any section line, choose the "View Perpendicularly to Section Line" tool and click your desired section line.

• Measuring distances is possible by one, two, or three points picked on the data or section lines with a mouse.
  • Measure Distance by One Point: this feature will calculate the distance between the set point and the closest adjacent data.
  • Measure Distance by Three Points: this feature will calculate the distance between the first set point and the line created by the following two points.
    

• Measuring lengths is possible by one or two points set on the section lines with a mouse.

• Measuring angles is possible by three or four points set on the section lines with a mouse.

• Calculating an area can be done based on section line or 3D data.
  • Calculate Area by One/Two Points: this feature will calculate an enclosed area within a section line.

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  • Calculate Area by Selection: this feature will calculate only the selected area on the 3D data. For this, use the "Brush" subtool to designate the area you want to calculate and click "Apply."

• To delete the created measurement results, choose "Delete Measurement Results" and click the annotation with the results.