Implant Designing Of Hip Bone Whichsuffer From Cancer By Using Cad Programs

This research aims to convert CT data of hip bone that sufferining cancer to 3D model, and designing metal implant of the infected area on the mechanical analysis programs, to study operability and convenience in terms of distribution of stresses and forces just as in patient’s body after installation and under the guidance of the bone surgeon.By depending on Mimics software to read the CT image and 3MATIC to convert the image to 3D digital model after generation the surface and the volume of the implant, the analysis process of stresess and forces in COMSOL software. Where after design and analysis the metal implant was appropriate mechanicaly and do not contain dangerousareas after the application of the expected forces.

The Relationship Of The Upper Airway Morphology With The Cephalometric Features Determining Sagittal intermaxillary Relationship In Adults Using Three Dimensional Computed Tomography

Introduction : The respiratory functions have wide effects on the orthodontic diagnosis and the treatment planning, besides their effects on the stability of the treatment results. So it is important to have a better and more deeply analysis of the upper airway morphology, and to evaluate its relationship with the cephalometric features that determine the intermaxillary relationship . Objective: The aim of this study was to evaluate the relationship of the size and areas of the upper airways in adults to the sagittal intermaxillary relationship using sagittal and axial slices of three dimensional computed tomography. Materials and methods: The Sample's consisted of 29 adults (12males,17 females) selected from patients who were ordinary undergoing 3DCT for non-orthodontic nor otolaryngology purposes and didn’t have orthodontic treatment . the anteroposterior positions of both the maxilla and the mandible were evaluated with the ANB angle , AF-BF distance and Wits appraisal .Then Pearson's Correlation was calculated to investigate the possible relationship between the upper airway measurements and the Cephalometric measurements determining intermaxillary relationship at the sagittal plane. Results: We found statistically significant correlation between the upper airway measurements and the cephalometric measurements determining sagittal intermaxillary relationship. The depth and area of NA showed negative correlation with ANB ,WITS,AF-BF (p＜0.05). We noticed that females have statistically significant smaller oropharyngeal depth than males. Conclusions: There is a statistically significant correlation between the upper airway measurements and the cephalometric measurements determining the sagittal intermaxillary relationship in adults with no clinical symptoms of the upper airway disorders..