| 000 | 03058cam a2200337 a 4500 | ||
|---|---|---|---|
| 003 | EG-GiCUC | ||
| 005 | 20250223031911.0 | ||
| 008 | 180108s2017 ua dh f m 000 0 eng d | ||
| 040 |
_aEG-GiCUC _beng _cEG-GiCUC |
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| 041 | 0 | _aeng | |
| 049 | _aDeposite | ||
| 097 | _aM.Sc | ||
| 099 | _aCai01.09.05.M.Sc.2017.Ma.A | ||
| 100 | 0 | _aMahmoud Maged Mahmoud Abdel Hamid Nasr | |
| 245 | 1 | 0 |
_aAccuracy of Planmeca Promax 3D MID® cone beam computed tomography machine in angular measurements in maxilla and mandible : _bA diagnostic accuracy study / _cMahmoud Maged Mahmoud Abdel Hamid Nasr ; Supervised Mushira M. Dahaba , Ahmad M. Abdalsamad |
| 246 | 1 | 5 |
_a للتصوير المقطعي بالحاسوب مخروطي الشعاع في قياسات الزوايا للفكي Planmeca Promax 3D MID® دقة جهاز : _b دراسة دقة تشخيصية |
| 260 |
_aCairo : _bMahmoud Maged Mahmoud Abdel Hamid Nasr , _c2017 |
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| 300 |
_a84 P. : _bcharts , facsimiles ; _c25cm |
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| 502 | _aThesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Oral (Radiology and Diagnosis) | ||
| 520 | _aCone beam computed tomography produces images of isotropic voxel which have equal dimensions in all three planes and thus contributing to higher accuracy, reproducibility and high resolution of the generated images. However, CBCT has some limitation as, streaking artifacts due to metal restorations, beam hardening, low contrast to noise ratio (increased image noise level), increased in homogeneity and image density variability. The skull angles appear to be very important quantitative indicators in various anthropological aspects. This study aimed to evaluate the accuracy of angular measurements obtained from CBCT scanner (Planmeca Promax 3D Mid) accurate in comparison with real measurements in maxilla and mandible. The study was conducted on 14 dry human skulls. Angular measurement was performed on the mandible and zygoma by goniometer for real measurements and on CBCT software then the skulls were covered by 12 mm of wax to stimulate soft tissue during imaging. It was found that there was a significant agreement between the CBCT and real angular measurements. Also there was a very strong correlation in all zygomatic and mandibular angular measurements readings. From the present work, the following conclusions could be reached: 1-Angular measurements driven from CBCT images of Planameca Promax 3D Mid® machine are accurate for all maxillofacial applications. 2-Angular measurements driven from CBCT images of Planameca Promax 3D Mid® machine are reproducible and reliable for all maxillofacial applications | ||
| 530 | _aIssued also as CD | ||
| 653 | 4 | _aCone beam computed tomography machine | |
| 653 | 4 | _alanmeca Promax 3D MID® | |
| 653 | 4 | _aMaxilla and mandible | |
| 700 | 0 |
_aAhmad M. Abdalsamad , _eSupervisor |
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| 700 | 0 |
_aMushira M. Dahaba , _eSupervisor |
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| 856 | _uhttp://172.23.153.220/th.pdf | ||
| 905 |
_aNazla _eRevisor |
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| 905 |
_aShimaa _eCataloger |
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| 942 |
_2ddc _cTH |
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| 999 |
_c64469 _d64469 |
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