Bone Loss
Conditions
Keywords
Polyetherketoneketone, Titanium, Polyethereetherketone
Brief summary
Subperiosteal implants were first introduced in 1940 and then used worldwide for the treatment of edentulous maxilla or mandible with advanced bone atrophy.
Detailed description
With the advancement of digital technology for the fabrication of materials and the emerging of new materials, subperiosteal implants can be fabricated from a wide variety of materials, and there is a lack of evidence regarding which material could be suitable.
Interventions
A 3D image of an edentulous maxilla bone will be derived from a computed tomography scan of an adult patient and saved as stl data. The solid geometry of the maxilla, including the cortical and spongious bone, was rebuilt from the stl data into the Digital Imaging and Communications in Medicine (DICOM) format with 3D-Doctor (Able Software Corp., MA, USA). With the Boolean method, force loading will be achieved between prosthetic parts, subperiosteal implant screws and bone tissues
Sponsors
Study design
Eligibility
Inclusion criteria
* A 3D image of an edentulous maxilla bone derived from a computed tomography scan of an adult patient. * Maxilla with Cawood and Howell class 4 or 5 classification
Exclusion criteria
* A 2D image of an edentulous maxilla bone * A non atrophied maxilla
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| bone loss under the implants | 10-15 years | amount of bone loss which appears on a modeling process, The modeling process will be completed using a three-dimensional modeling software. A three-dimensional mesh consisting of 556,365 nodes and 2972,897 elements with VRMesh Studio (VirtualGrid Inc, Bellevue City, WA, USA) will used in the program. |
Countries
Egypt