The Accuracy of Computer Software Prediction of Soft Tissue Profile for Patients Undergoing Fixed Orthodontic Treatment

The inclusion criteria included:

- Patient undergo fixed orthodontic treatment with the edgewise technique.

- Skeletal class I.

- Dental class I or II or III.

- Final class I occlusion without spacing or crowding, with normal overjet and overbite
(2-4 mm)

- Availability of full diagnostic and therapeutic records before to and following
orthodontic treatment, including medical and dental history, dental casts, panoramic
and cephalometric x-rays, and photographic photographs.

The exclusion criteria included:

- Missing tooth or significant Bolton discrepancies (more than 3 mm).

- Craniofacial syndromes or skeletal abnormalities.

- Failed orthodontic treatment in the past.

- Cosmetic or reconstructive facial surgery during orthodontic treatment, or up to a
year beforehand.

- Using drugs that could reduce the volume of soft tissues.