000 02572cam a2200313 a 4500
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008 211114s2021 ua dh f m 000 0 eng d
040 _aEG-GiCUC
_beng
_cEG-GiCUC
041 0 _aeng
049 _aDeposite
097 _aPh.D
099 _aCai01.09.05.Ph.D.2021.Ne.A
100 0 _aNermen Sameh Abdelmenem
245 1 0 _aAccuracy of CBCT 3D and 2D images in dental arch space analysis :
_bA diagnostic accuracy study /
_cNermen Sameh Abdelmenem ; Supervised Mushira M. Dahaba , Farid Medhat Farid
246 1 5 _aدقة التصوير المقطعى بالحاسوب مخروطى الشعاع فى الصور ثلاثية وثنائية الابعاد فى تحليل مساحة القوس السنية :
_bدراسة للدقة التشخيصية
260 _aCairo :
_bNermen Sameh Abdelmenem ,
_c2021
300 _a129 P. :
_bcharts , facsimiles ;
_c25cm
502 _aThesis (Ph.D.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Oral (Radiology and Diagnosis)
520 _aAim: This study was conducted to evaluate the accuracy and reliability of CBCT obtained 3D and 2D images in dental arch space analysis. Methodology: A total number of 12 maxillary and mandibular plaster models (6 maxilla and 6 mandible) and their corresponding CBCT scans from 6 patients were used. On each plaster model, 16 different measurements were selected and measured using the digital caliper and considered to be the gold standard. The same measurements were measured using the corresponding 2D & 3D CBCT direct digital models obtained from CBCT scanning of the participant patients using the Planmeca Promax 3D MID CBCT machine.This data was then analyzed by OnDemand3D{u2122} third party software. Results: There was an excellent to good agreement between the 2D & 3D CBCT obtained direct digital model measurements and real measurements in the whole study sample.Also, the difference between 2D & 3D CBCT measurements and real measurements was statistically and clinically NonSignificant except in the required space 3D CBCT measurement but this difference was higher in the 3D CBCT measurements.There was an overall underestimation tendency in the mean 3D CBCT linear measurements regarding most of study sample
530 _aIssued also as CD
653 4 _a2D images
653 4 _aCBCT 3D
653 4 _aDental arch space analysis
700 0 _aFarid Medhat Farid ,
_eSupervisor
700 0 _aMushira M. Dahaba ,
_eSupervisor
905 _aNazla
_eRevisor
905 _aShimaa
_eCataloger
942 _2ddc
_cTH
999 _c83128
_d83128