Dental Deformity, Malocclusion, Orthognathic Surgery
Conditions
Brief summary
This retrospective single-center observational study compared perioperative and early postoperative outcomes in patients undergoing orthognathic surgery after orthodontic preparation with either conventional fixed brackets or clear aligners. The objective was to assess whether aligner-based preparation was associated with differences in intraoperative occlusal management, including fixation stability, technical difficulties, need for additional intraoperative adaptations, and early occlusal outcomes.
Interventions
DEVICEConventional fixed orthodontic appliances
Orthodontic preparation with fixed multi-bracket appliances in place at the time of surgery, providing conventional anchorage for intermaxillary fixation and intraoperative occlusal control.
DEVICEClear aligner therapy
Orthodontic preparation with clear aligners and no fixed brackets at the time of surgery. Alternative intraoperative strategies may be required to achieve planned occlusal positioning and stabilization.
Sponsors
Centre Hospitalier Universitaire de Nice
Study design
Observational model
COHORT
Time perspective
RETROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
16 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Patients undergoing orthognathic surgery at the study center during the study period. * Orthodontic preparation with either conventional fixed brackets or clear aligners. * Age 16 years or older. * Available perioperative clinical records and required imaging data.
Exclusion criteria
* Missing perioperative data required for the analysis. * Missing preoperative or postoperative imaging required for assessment. * Explicit opposition to the reuse of data, if applicable. * Syndromic conditions. * Cleft-related deformities. * Distraction osteogenesis. * Secondary surgery. * Follow-up \< 6 months.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Composite perioperative occlusal management event | From surgery to the immediate postoperative assessment | Number of composite perioperative occlusal management event for each patient |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Stable intermaxillary fixation | From begining to the end of the surgery | Number of stable intermaxilary fixation or not for each patient |
| Surgical revision after surgery | After surgery and the next 6 months | Number of patient with postoperative complications 6 months after surgery |
Countries
France
Outcome results
None listed