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

Evaluation of facial soft tissue asymmetric changes in Class III patients after orthognatic surgery

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

ISRCTN

Registry ID

ISRCTN26961096

Enrollment

101

Registered

2021-02-12

Start date

2011-10-05

Completion date

Unknown

Last updated

2022-10-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Facial soft tissue asymmetric changes following orthodontic treatment and orthognathic surgery Oral Health Facial soft tissue changes, orthodontic treatment, orthognathic surgery

Interventions

The cohort will be recruited from patients treated at the Department of the Orthodontics, Institute of Stomatology of the Riga Stradinš University. The mean follow-up for these patien

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Presence of skeletal Class III malocclusion (mandibular prognathism or maxillary retrognathism, or combination) 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- 2018 at the Department of the Orthodontics, Institute of Stomatology of the Riga Stradinš University 6. All 3D facial images for all 3 time points collected 7. Aged =19 years

Exclusion criteria

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

Design outcomes

Primary

Measure	Time frame
1. Asymmetric changes in soft-tissue are evaluated using the three-dimensional 3dMDtrio (3dMD, Atlanta, GA) stereophotogrammetric system at baseline, 6, and 12 months	—

Secondary

Measure	Time frame
1. The changes in facial asymmetry were compared between the following demographics using the three-dimensional stereophotogrammetric system at baseline, 6, and 12 months: 1.1. Time of image collection (before surgery/6 months after surgery/12 months after surgery) 1.2. Gender (Male/Female) 1.3. Type of surgery (single jaw, LeFort I/both jaw, bimaxillary) 1.4. Facial region groups	—

Countries

Latvia

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026