000			03025nam a22003377i 4500
999			_c12489 _d12489
005			20211026104115.0
008			120325s2020 ua ad||f mb 00| 0 eng d
040			_aEG-NcFUE _erda
041			_aeng _bara
082	0	4	_222 _a617.643 _bO.M.E
100	1		_aOwaimer, Mahmoud Youssef, _eauthor. _933778
245	1	0	_aEvaluation of the effect of color on elastomeric chain force decay: _ban in-vitro study / _cby Mohmoud Yousef Owaimer, BDS, Misr University for Science and technology
246	1	5	_aتقييم تأثير الألوان على قوة الاضمحلال في سلسلة اللدائن المرنة
264		1	_c2020
300			_avi, 55, 2 leaves ; _bcolor illustrations ; _c30 cm
336			_2rdacontent _atext
337			_2rdamedia _aunmediated
338			_2rdacarrier _avolume
500			_aThesis submitted to the department of orthodontics, faculty of oral and dental medicine, Future University in Egypt in partial fulfillment of requirement for the master’s degree in Orthodontics
500			_aSupervisor Dr. Hala Munir Abd El Majeed, Professor of orthodontics, faculty of oral & dental medicine, Future university in Egypt, Cairo university, Dr. Essam mohammed Nassef Selim, Professor of orthodontics, faculty of oral & dental medicine, Future university in Egypt, Cairo university
502			_aThesis (M.Sc.) - Future University in Egypt - Faculty of Oral and Dental Medicine Department of Orthodontics, 2020.
504			_aIncludes bibliographical references
520			_aThe main purpose of the present study was to evaluate the effect of color on elastomeric chain force decay over different time intervals. In this study four colors (silver, red, blue and purple) compared to clear chain from three different companies (American Orthodontic, Fairfield, Matt). Fifty test specimens from each group (AO, FF, MT) were obtained where ten elastomeric chains of each color were tested for force decay over time, which resulted in one hundred and fifty elastomeric chains included in the study. The force decay was tested after 2 hours, 24 hours, 1, 2, 3 & 4 weeks. Five new spools of elastomeric chain from each of the three companies were used for the study. Fifteen rectangular wooden blocks made of two separate halves of wood were constructed to represent the framework on which 10 pairs of iron pins which were symmetrically arranged in a parallel manner 2cms apart, where the space between each parallel pair was adjusted to be 25mm which served as an average approximation of the actual distance between the midpoints of the first molar and canine brackets in a normal dentition prior to space closure.
546			_aText in English, Abstract in Arabic and English
650		0	_aOrthodontics.
700	1		_aAbd El Majeed, Hala Munir _933761 _eSupervisor
700			_aSelim, Essam Mohamed Nassef _929827 _eSupervisor.
856	4	0	_3DSpace electronic resource _uhttp://repository.fue.edu.eg/xmlui/handle/123456789/5772
942			_cTHESIS _2ddc