Malocclusion
Conditions
Brief summary
This study aimed to evaluate the biomechanical performance of patient-specific versus conventional fixation for Le Fort I osteotomy using subject-specific finite element models derived from real surgical plans. Two distinct clinical scenarios-a minor advancement without impaction and a moderate advancement with posterior impaction-were analyzed to determine how surgical movements influence implant stress, bone stress, and maxillary micromotion. By combining surgical planning with validated computational modeling, this work provides clinically relevant insight to optimize PSI design and guide fixation strategy selection in orthognathic surgery.
Interventions
OTHERIn silico orthognathic surgery with customized implants digital only on 3D scanners
2 patients : one with type II maloclusion, one with type III maloclusion who previously undergone orthognathic surgery
Sponsors
Centre Hospitalier Universitaire de Nice
Study design
Observational model
OTHER
Time perspective
RETROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Patient operated on By Pr SAVOLDELLI. * Patient undergoing patient-specific orthognathic surgery. * Access to numerical (digital) planning.
Exclusion criteria
* Previous maxillo-facial trauma. * Facial cleft.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Plate stress levels | At the inclusion | assessed by FORGE software |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Stress on bone | At the inclusion | Mechanical stress in mecanics is measured in Pa (Pascal) |
| Maxillary displacement | At the inclusion | Displacement levels in mecanics is measured in millimeters or micrometers. |
Countries
France
Contacts
CONTACTOlina Rios
CONTACTCharles +33 SAVOLDELL
Outcome results
None listed