000			03061cam a2200349 a 4500
003			EG-GiCUC
005			20250223032041.0
008			180909s2017 ua do f m 000 0 eng d
040			_aEG-GiCUC _beng _cEG-GiCUC
041	0		_aeng
049			_aDeposite
097			_aM.Sc
099			_aCai01.09.06.M.Sc.2017.Mo.T
100	0		_aMostafa Dahy Hafez
245	1	2	_aA three dimensional assessment of the influence of low-level laser therapy on the stability of orthodontic mini-screws : _bA randomized clinical trial / _cMostafa Dahy Hafez ; Supervised Amr Abdelrehim Hussein Labib , Mona Mohamed Salah Fayed , Amr Ragab Elbeialy
246	1	5	_aتقييم ثلاثى الأبعاد لتأثيرالمعالجه بالليزر منخفض المستوى على استقرارالبراغى التقويميه الصغيره : _bتجربه سريريه عشوائيه
260			_aCairo : _bMostafa Dahy Hafez , _c2017
300			_a90 P. : _bcharts , photographs ; _c25cm
502			_aThesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Orthodontics
520			_aObjectives: The aim of the present study was to investigate whether low intensity laser could have an effect on orthodontic mini-screws stability using CBCT. Subjects and Methods: This study was carried out on thirty mini-screws in fifteen subjects with a mean age of 20 years by using split mouth design for the patients who required therapeutic extraction of maxillary first premolars, the mini-screws were placed bilaterally between the maxillary second premolar and the first molar. A direct force using closed nickel-titanium coil spring extending from the mini-screw to the hook of maxillary canines was applied, It delivered a force of 150 gm per side to retract the maxillary canine. The subjects were referred to take the Pre-CBCT.. Low intensity laser was applied without contact over and perpendicular to mini-screws of the laser sides on days (0, 7, 14, and 21). After six months of canine retraction, The subjects were referred to take the Post-CBCT. Results: The overall success rate of mini-screws in this study was approximately 85.7% and It was found that movements of the mini-screws in the Laser side was lesser than the control side. The mini-screws were moved anteriorly in mesial direction from the (axial) view and inferiorly in occlusal direction from the (coronal) view, and Its Movement in mesial direction was greater than its occlusal one. The angular difference between the laser and control groups in mesial movement of mini-screws was 0.91{u00B0} and in occlusal movement of mini-screws was 0.53{u00B0}
530			_aIssued also as CD
653		4	_aCBCT
653		4	_aLow level laser
653		4	_aOrthodontic mini-screws
700	0		_aAmr Abdelrehim Hussein Labib , _eSupervisor
700	0		_aAmr Ragab Elbeialy , _eSupervisor
700	0		_aMona Mohamed Salah Fayed , _eSupervisor
856			_uhttp://172.23.153.220/th.pdf
905			_aNazla _eRevisor
905			_aSamia _eCataloger
942			_2ddc _cTH
999			_c67393 _d67393