Skeletal Class III Deformity
Conditions
Keywords
Bimaxillary orthognathic surgery, Minimally invasive technique, Skeletal Class III, Stereophotogrammetry
Brief summary
This study evaluated postoperative soft tissue changes in skeletal Class III patients following minimally invasive and conventional orthognathic surgery using three-dimensional stereophotogrammetric analysis.
Detailed description
This study was conducted on 31 adult patients who underwent bimaxillary orthognathic surgery. Patients were divided into minimally invasive (n=15; mean age: 23.2 years) and conventional surgery groups (n=16; mean age: 22.4 years) according to the surgical technique performed. High-resolution three-dimensional stereophotogrammetric facial images were obtained preoperatively (T0) and at least six months postoperatively (T1). Three-dimensional displacements of soft tissue anthropometric landmarks, as well as linear and angular measurements, were analyzed. Data distribution was assessed using the Shapiro-Wilk test, and appropriate parametric and non-parametric tests were used for intra- and intergroup comparisons. Statistical significance was set at p\<0.05.
Interventions
PROCEDUREMinimally Invasive Bimaxillary Orthognathic Surgery
Bimaxillary orthognathic surgery performed using a minimally invasive surgical approach characterized by limited soft tissue dissection, reduced surgical exposure, and preservation of vascular integrity to minimize postoperative soft tissue alterations.
PROCEDUREConventional Bimaxillary Orthognathic Surgery
Bimaxillary orthognathic surgery performed using conventional surgical exposure and standard soft tissue dissection techniques.
Sponsors
TC Erciyes University
Study design
Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE
Intervention model description
This study was conducted on 31 adult patients who underwent bimaxillary orthognathic surgery. Patients were divided into minimally invasive (n=15; mean age: 23.2 years) and conventional surgery groups (n=16; mean age: 22.38 years) according to the surgical technique performed. High-resolution three-dimensional stereophotogrammetric facial images were obtained preoperatively (T0) and at least six months postoperatively (T1). Three-dimensional displacements of soft tissue anthropometric landmarks, as well as linear and angular measurements, were analyzed. Data distribution was assessed using the Shapiro-Wilk test, and appropriate parametric and non-parametric tests were used for intra- and intergroup comparisons. Statistical significance was set at p\<0.05.
Eligibility
Sex/Gender
ALL
Age
17 Years to 36 Years
Healthy volunteers
No
Inclusion criteria
Skeletal Class III patients requiring bimaxillary orthognathic surgery Patients treated with minimally invasive or conventional orthognathic surgery Availability of high-resolution three-dimensional stereophotogrammetric images obtained preoperatively and at least 6 months postoperatively Patients with complete clinical records Completion of craniofacial growth Patients with less than 10 mm maxillary advancement/setback
Exclusion criteria
Craniofacial syndromes or congenital anomalies History of previous orthognathic surgery Facial trauma affecting soft tissue morphology Incomplete clinical or imaging records Systemic diseases affecting soft tissue healing or craniofacial morphology
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Three-Dimensional Soft Tissue Landmark Displacements | Up to 6 months | Three-dimensional soft tissue landmark displacements (mm) evaluated using stereophotogrammetric analysis in skeletal Class III patients undergoing minimally invasive and conventional bimaxillary orthognathic surgery. |
| Linear Soft Tissue Measurements | Up to 6 months | Linear soft tissue measurements (mm) evaluated using stereophotogrammetric analysis in skeletal Class III patients undergoing minimally invasive and conventional bimaxillary orthognathic surgery. |
| Angular Soft Tissue Measurements | Up to 6 months | Angular soft tissue measurements (degree) evaluated using stereophotogrammetric analysis in skeletal Class III patients undergoing minimally invasive and conventional bimaxillary orthognathic surgery. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Airway Measurements | Up to 6 months | Airway measurements (mm) evaluated using cephalometric analysis in skeletal Class III patients undergoing minimally invasive and conventional bimaxillary orthognathic surgery. |
| Lip Thickness Measurements | Up to 6 months | Upper and lower lip thickness measurements (mm) evaluated using three-dimensional stereophotogrammetric analysis in skeletal Class III patients undergoing minimally invasive and conventional bimaxillary orthognathic surgery. |
Countries
Turkey (Türkiye)
Contacts
STUDY_DIRECTORGOKHAN COBAN, Associate Professor
Erciyes University Faculty of Dentistry
Outcome results
None listed