Manufacturing method of transparent orthodontic device apparatus using 3D printer

In a method for manufacturing a transparent orthodontic appliance using a computer, the method comprising the steps of:

• (A) Scanning the patient's oral structure to generate and store data representing the shape of the oral structure;
• (B) Displaying the patient's oral structure based on the data stored in step (A);
• and
• (C) Setting the detailed aspects of the orthodontic treatment with respect to the displayed oral structure in step (B),
• wherein step (C) includes:
• Selecting the teeth to be treated while the patient's oral structure is displayed and entering correction values for the rotation and movement amounts of the selected teeth:
• (C1) Entering a scale value representing the gap between the orthodontic appliance and the teeth based on the correction values entered, wherein the scale value entered is between 100.1% and 101.5%:
• (C 2) Entering thickness values to differentially vary the thickness of the orthodontic appliance by differentiating the thickness at the parts that contact the orthodontic appliance with the teeth and the parts that do not:
• (C3)
• (D) Outputting the transparent orthodontic appliance through a 3D printer based on the values set in the above steps.