000			02972cam a2200337 a 4500
003			EG-GiCUC
005			20250223032157.0
008			190130s2018 ua dh f m 000 0 eng d
040			_aEG-GiCUC _beng _cEG-GiCUC
041	0		_aeng
049			_aDeposite
097			_aM.Sc
099			_aCai01.09.05.M.Sc.2018.As.D
100	0		_aAsmaa Ahmed Hassan
245	1	0	_aDiagnostic accuracy of (planmeca pro max 3D Mid) CBCT unit in detection of second mesiobuccal root canal in maxillary molars by using different voxel sizes : _bDiagnostic accuracy study / _cAsmaa Ahmed Hassan ; Supervised Nashwa Salah Mohamed , Dina Fahim
246	1	5	_a للتصوير المقطعي بالحاسوب مخروطى الشعاع فى تحديد القناة الجذرية الدانية الشدقية الثانية فى أضراس الفك العلوى باستخدام وحدات حجم مختلفة Planmeca ProMax 3D Mid الدقة التشخيصية لجهاز : _bدراسة دقة تشخيصة
260			_aCairo : _bAsmaa Ahmed Hassan , _c2018
300			_a113 P. : _bcharts , facsimiles ; _c25cm
502			_aThesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Oral (Radiology and Diagnosis)
520			_aThe success of endodontic treatment is directly correlated to the complexity of root canal system. It is generally accepted that a major cause of failure of root canal treatment is the inability to recognize the presence of and to adequately treat all canals of the root canal system. Permanent maxillary molars have one of the most complex root canal anatomies.This diagnostic accuracy study focused on the effect of the use of different voxel sizes of PlanmecaProMax 3D Mid CBCT unit to evaluate the ability to accurately detect the number of canals in mesiobuccal root of maxillary molars.Twenty four maxillary molars fulfilling the inclusion criteria were inserted in acrylic models, with six teeth embedded in each model in Inlay wax for support. The acrylic cast was placed in a plastic container filled with water to simulate the soft tissues. All acrylic casts were scanned using PlanmecaProMax 3D Mid CBCT unit at three different voxel sizes (0.075 mm, 0.2 mm, and 0.4 mm). After that, the scans were assessed by two radiologists twice with two weeks interval for inter and intra-observer agreement using Planmeca Romexis Viewer 4.5.0.R on a personal computer. The observers used the three orthogonal planes (axial, coronal and sagittal) to detect the MB2 canal and they were free to adjust the brightness and contrast of the image according to their needs
530			_aIssued also as CD
653		4	_aCBCT unit
653		4	_aMaxillary molars
653		4	_aPlanmeca promax 3D Mid
700	0		_aDina Fahim , _eSupervisor
700	0		_aNashwa Salah Mohamed , _eSupervisor
856			_uhttp://172.23.153.220/th.pdf
905			_aNazla _eRevisor
905			_aShimaa _eCataloger
942			_2ddc _cTH
999			_c69847 _d69847