Evaluation of facial soft tissue asymmetric changes in patients after jaw surgery

Not Applicable

Completed

Conditions: Orthognathic surgery
Surgery

Registration Number: ISRCTN14166937

Lead Sponsor: Riga Stradinš University

Brief Summary: Not available

Detailed Description: Not available

Recruitment & Eligibility

Status: Completed

Sex: All

Target Recruitment: 75

Inclusion Criteria

1. Presence of skeletal Class II malocclusion
2. No history of trauma or maxillofacial surgery, or recognized craniofacial syndromes as etiologic factors
3. No active growth at the time of surgery
4. Received preoperative and post-operative orthodontic treatment
5. Underwent a single or both jaw surgeries during the time period of 2011- 2021 at the
Department of the Orthodontics, Institute of Stomatology of the Riga Stradinš University
6. All 3D facial images for all timepoints collected
7. Aged =22 years

Exclusion Criteria

1. Cleft or other craniofacial anomalies or syndromes
2. Beards and/or mustaches at any timepoint
3. One of the 3D images was defective (for example, the head was moved during image capture, resulting in duplication of the image)

Study & Design

Study Type: Observational

Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Asymmetric changes in soft-tissue evaluated using the three-dimensional 3dMDtrio (3dMD, Atlanta, GA) stereophotogrammetric system before surgery (T0), 6 months (T1) and 12 months (T2), 18 months (T3), 2 years (T4) and 3-5 years (T5) after surgery

Secondary Outcome Measures

Name	Time	Method
1. Changes in facial asymmetry compared between the following demographics using the three-dimensional stereophotogrammetric system before surgery (T0), 6 months (T1) and 12 months (T2), 18 months (T3), 2 years (T4) and 3-5 years (T5) after surgery:<br>1.1. Time of image collection<br>1.2. Gender (male/female)<br>1.3. Type of surgery (single jaw, LeFort I/both jaw, bimaxillary)<br>1.4. Facial region groups<br>1.5. Comparing Class II and Class III patients in the long term