000 03095cam a2200349 a 4500
003 EG-GiCUC
005 20250223032514.0
008 200114s2019 ua dho 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.2019.Om.C
100 0 _aOmar Abdalaziz Mohamed
245 1 0 _aComparison between digital 3D printed transfer tray versus tray for indirect bonding :
_bA randomized clinical trial /
_cOmar Abdalaziz Mohamed ; Supervised Amr Eldakroury , Fouad Aly Elsharaby , Amr Ragab Elbeialy
246 1 5 _aمقارنة بين حاوية نقل المشابك التقويمية المطبوعة بالتقنية الرقمية ثلاثية الأبعاد وتلك المصنوعة بالتشكيل الحرارى فى اللصق غير المباشر :
_bتجربة سريرية عشوائية
260 _aCairo :
_bOmar Abdalaziz Mohamed ,
_c2019
300 _a132 P. :
_bcharts , facimiles , photoghraphs ;
_c25cm
502 _aThesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Orthodontics
520 _aIntroduction: The objective of this trial was to compare the differences between two types of indirect bonding techniques regarding accuracy of transfer orthodontic attachments in all 3 planes of space using 3D scanning and superimposition, bond failure of orthodontic attachment and chairside time. Materials and methods: A randomized controlled trial compared between the digital 3D printed transfer tray versus thermoformed transfer tray techniques was performed, 12 patients with fully erupted full set of permanent teeth including the permanent maxillary second molars, with mild to moderate crowding, with good oral hygiene and no signs of caries, large restorations, abnormalities of crown morphology or gingival inflammation were recruited in this study. 144 attachments were bonded to the maxillary teeth from central to first molar for both groups. For the thermoformed transfer tray group, after placement of the attachments on the working model using water soluble glue regarding the vertical and horizontal reference lines, the tray was vacuum-formed over the model using soft vacuum sheet 1 mm thickness. While for the 3d printed tray group, the tray was designed using 3Shape Appliance Designer software and 3d printed in flexible resin. The attachments were transferred to the patient{u2019}s dentition using the two techniques. Pre-operative and post-operative scans were superimposed to assess the transfer accuracy. The number of failed attachments was recorded and the chair side time was recorded using stopwatch
530 _aIssued also as CD
653 4 _aDigital 3D printed
653 4 _aThermoformed transfer
653 4 _aZ-axis
700 0 _aAmr Eldakroury ,
_eSupervisor
700 0 _aAmr Ragab Elbeialy ,
_eSupervisor
700 0 _aFouad Aly Elsharaby ,
_eSupervisor
856 _uhttp://172.23.153.220/th.pdf
905 _aNazla
_eRevisor
905 _aShimaa
_eCataloger
942 _2ddc
_cTH
999 _c76341
_d76341