000			02976cam a2200313 a 4500
003			EG-GiCUC
008			210927s2020 ua dh f m 000 0 eng d
040			_aEG-GiCUC _beng _cEG-GiCUC
041	0		_aeng
049			_aDeposite
097			_aM.Sc
099			_aCai01.09.02.M.Sc.2020.No.E
100	0		_aNourhan Ezzat Mohammed
245	1	0	_aEffect of M-pro versus proTaper next rotary instrumentation systems on apically extruded debris and canal cleanliness in single canals : _bA comparative in vitro study / _cNourhan Ezzat Mohammed ; Supervised Alaa Aldin Diab , Hany Samy Sadek
246	1	5	_aدراسه معمليه : _bدراسه تاثير مبرد ام-برو مقارنه بمبرد برو تيبير نكست انظمه الاجهزه الدواره على قذف الحطام من قمم الجذور ونظافه القناه فى القنوات الواحده
260			_aCairo : _bNourhan Ezzat Mohammed , _c2020
300			_a110 P . : _bcharts , facsmilies ; _c25cm
502			_aThesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Endodontics
520			_aAim: The purpose of this study was to evaluate the amount of apically extruded debris and canal cleanliness after canal preparation using M-Pro and ProTaper Next rotary system files. Methodology: Forty extracted human, single-rooted mandibular premolars were divided to two groups (n=20) in each group. The root canal instrumented by G1 ProTaper Next (Dentsply Maillefer, Baillagues, Switzerland) and G2 M-Pro (Guangdong, China, Mainland) according to the manufactures' instructions. Distal water was used as irrigant. The apically extruded debris was collected in preweighted glass vials. The vials were stored in an incubator for 5 days. The vials were weighed to obtain the final dry weight of the extruded debris. The amount of apically extruded debris was calculated by the difference between the weights of the glass vials with dried debris and prewighted of the empty glass vial. Followed by assessment of canal cleanliness irrigation was performed using 2,5% NaOCl and 17% EDTA, followed by rinsing with saline. The roots were split longitudinally into two halves and the canals examined at x2000 and x4000 in Scanning Electron Microscope (SEM) the data were statistically analyses. Result: All specimens were associated with apical debris extrusion. No significant difference was noted among the PTN and M-Pro systems (P > 0.05). SEM analysis showed more debris and smear layer removal coronally than in the middle and apically. The mean total debris score and smear layer score between the two groups were no significant difference (P > 0.05)
530			_aIssued also as CD
653		4	_aApical extrusion
653		4	_aPTN
653		4	_aRotary file system
700	0		_aAlaa Aldin Diab , _eSupervising
700	0		_aHany Samy Sadek , _eSupervising
905			_aAmira _eCataloger
905			_aNazla _eRevisor
942			_2ddc _cTH
999			_c82327 _d82327