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

Study Overview
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Brief Summary
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A clinical study to evaluate the accuracy of computer software in predicting soft tissue profile changes in patients undergoing fixed orthodontic treatment

Detailed Description
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The computer software programs exhibit certain soft tissue simulation . The purpose of the study to assess the accuracy of computer software in predicting profile changes in patients undergoing fixed orthodontic treatment

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

Conditions
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Dental Malocclusion

Intervention / Treatment
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* Other: Accuracy of computer software in predicting soft tissue profile changes


Participation Criteria
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Eligibility Criteria
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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.

Ages Eligible for Study
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Minimum Age: 15 Years
Maximum Age: 35 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| A<br>real photoes (after treatment) | Other: Accuracy of computer software in predicting soft tissue profile changes<br>* Separate analyses will be performed on the initial and final cephalograms. All of the cephalometric analyses will be done via computer software,the linear and angular measurements will be done via the software. Through the use of software, the initial cephalogram and the initial photograph will be linked. Then, the final values of some angles will be tracted from the post-treatment cephalogram. These values will be inserted in the treatment simulationsection of the software. A post-treatment projected image of the patient will be simulated by the software. Then the actual post-treatment photograph will be placed on the simulated image in transparent form. From the pupil , real horizontal and vertical reference lines will be drawn. Then certain measurements will be taken from referance lines to fixed points on the soft tissue to determine the discrepancies between the real and simulated images.<br>* Other names: visual treatment objective;|
| B<br>simulated photoes | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| accuracy of computer software in predicting soft tissue profile changes | Separate analyses will be performed on the initial and final cephalograms. All of the cephalometric analyses will be done via computer software; the linear and angular measurements will be done via the software. Through the use of software, the initial cephalogram and the initial photograph will be linked. Then, the final values of some angles will be extracted from the post-treatment cephalogram. These values will be inserted in the treatment simulation section of the software. A post-treatment projected image of the patient will be simulated by the software. Then the actual post-treatment photograph will be placed on the simulated image in transparent form. From the pupil , real horizontal and vertical reference lines will be drawn. Then certain measurements will be taken from reference lines to fixed points on the soft tissue to determine the discrepancies between the real and simulated images. | through study completion, an average of 1 year | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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VTO, orthodontic software, prediction