In patient with skeletal open bite, Dose computer-aided surgery enhances the clinical outcomes and accuracy versus conventional model surgery
P Adult Patients with skeletal open bite. I Computer guided surgery. C Conventional articulating model surgery O Outcome measure: Outcome Name Measuring Device Measuring Unit (mm) O1 Accuracy Computer guided: Super-imposition of virtual surgery over the post- operative CT Scan composite models ( millimeter mm) Conventional : Super-imposition of scanned articulator with mounted casts in the pre-planned mock surgery over post-operative scanned mounted occlusion ( millimeter mm) O2 Anterior open Bite Closure Standardized Multi Scan CT (millimeter mm)
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
14
Preoperative surgical simulation and immediate postoperative evaluation will be carried out using Multi Slice CT scan.Craniofacial images from 3D computerized tomography (3D-CT scan) can be used to create a 3D model, which can in turn be used for 3D Cephalometry measurements and surgical simulation.The process of 3D-model contains mounting of 3D virtual models in a 3D virtual articulator; and repositioning of 3D virtual models according to the STO then Fabrication of a 3D virtual intermediate surgical wafer; and materialization of the surgical wafer using a stereolithographic technique. The 3D model can produce actual movement of surgical cuts and movement of segments accordingly
preparation for orthognathic surgery which involves diagnosis with 2D cephalometric radiograph, face-bow transfer and model surgery on plaster dental cast, and fabrication of intermediate and final occlusal splint.
Accuracy of movement of surgical segments in millimeter
Computer guided Super-imposition of virtual surgery over the post- operative CT Scan composite models (millimeter mm). Conventional Super-imposition of scanned articulator with mounted casts in the pre-planned mock surgery over post-operative scanned mounted occlusion- accuracy would be compared by difference between Intervention and control in (millimeter mm).
Time frame: up to 4 months
Anterior open Bite Closure (positive overbite in millimeter)
Standardized pre-surgery movement in amount of anterior open bite closure (mm) will be determined clinically and by radiograph.
Time frame: up to 4 months
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.
2D cephalometric radiograph
3D computerized tomography