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003			EG-GiCUC
005			20250223032816.0
008			210915s2021 ua dh f m 000 0 eng d
040			_aEG-GiCUC _beng _cEG-GiCUC
041	0		_aeng
049			_aDeposite
097			_aM.Sc
099			_aCai01.09.06.M.Sc.2021.Mi.A
100	0		_aMina Adly Kaldas
245	1	0	_aAssessment of root parallelism following orthodontic treatment in adolescent vs adult patients treated with maxillary first premolar extraction : _bObservational -analytical study / _cMina Adly Kaldas ; Supervised Mohamed Abdelaleem Bushnaq , Fouad Aly Elsharaby , Heba Mohamed Elsayed Dehis
246	1	5	_aتقييم التوازى الجذرى فى المراهقين مقابل البالغين بعد انتهاء تقويم الأسنان و الذين تم معالجتم بخلع الضرس الطاحن الاول العلوى كجزء من خطة العلاج : _bدراسة نظرية تحليلية
260			_aCairo : _bMina Adly Kaldas , _c2021
300			_a114 P. : _bcharts , facsimiles ; _c25cm
502			_aThesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Orthodontics
520			_aAim: The aim of this study was to assess the root parallelism between maxillary canines and second premolars in adolescent versus adult group of patients following maxillary first premolar extraction and space closure (Primary outcome), and to compare the incidence of associated post treatment root resorption (Secondary outcome). Methodology: The sample of this study comprised post treatment panoramic radiographs (OPGs) of cases having extracted maxillary first premolar from the record archives of the outpatient{u2019}s clinic, Orthodontic Department, Cairo University. A sample of 180 panoramic radiographs were enrolled in this study after fulfilling the eligibility criteria and were divided into two groups, 96 Adult Patients (mean age 23.7 years old ± 6.7), and 84 Adolescent patients (mean age 14.3 years old ± 3.9). All included radiographs were digitized, the long axes of canines and second premolars were traced. The angulation between the long axes of canines and 2nd premolars in the same quadrant was measured and categorized accordingly into either good, acceptable, poor or over-treated parallelism. Furthermore, canines and 2nd premolars{u2019} mesiodistal angulation were additionally assessed in relation to a true horizontal reference plane passing through infraorbital rim. Meanwhile, digital assessment of root resorption on OPGs was done by calculating the difference between the pre and post treatment root length after proper calibration and standardization. Results: the frequency of good root parallelism was statistically higher in adolescent group (60.11%) than the adult group (41.6%).The amount of root resorption in adult group was significantly greater than adolescent group (P<0.05) in both central and lateral incisors. The highest mean of root resorption in adolescent group was in left lateral incisor (1.14 mm ± 0.26), while in adult group the highest mean of root resorption was in right lateral incisor (1.5 mm ± 0.3)
530			_aIssued also as CD
653		4	_aAdult patients
653		4	_aOrthodontic treatment in adolescent
653		4	_aRoot parallelism
700	0		_aFouad Aly Elsharaby , _eSupervisor
700	0		_aHeba Mohamed Elsayed Dehis , _eSupervisor
700	0		_aMohamed Abdelaleem Bushnaq , _eSupervisor
856			_uhttp://172.23.153.220/th.pdf
905			_aNazla _eRevisor
905			_aShimaa _eCataloger
942			_2ddc _cTH
999			_c82157 _d82157