This slide show in one case which have a solution to one problem in 3D bone grafting.

1. Radiology in planning

2. Digital information repair of Maxilla.
• The main planning problem in bone grafting, when we
generate the 3D surface from CT pictures and no included
the information what we want to see.
• Those patients which have bone atrophy, in their case the
cortical bone of maxilla is too thin. This factor is which
affects the contrast quality of image.
• In this case the solution is to reduce the value of voxel
(resolution increases).
• This causes better image, because more information
coming from the bone (voltage signal proportion of filled)
and better the process of voltage signal proportion (raw
data).

3. Process of voltage signal
proportion (raw data)

4. 200 µ process

5. 125 µ process

7. First CT scan parameters

12. Intersecting planes

13. A-A cross section (pink area)

14. Biggest cross section: 1,563 mm

15. Voxel modify CT scan parameters

16. Different voxel values
125 µ200 µ

20. Result