000			03465cam a2200337 a 4500
003			EG-GiCUC
005			20250223031826.0
008			171016s2016 ua dh f m 000 0 eng d
040			_aEG-GiCUC _beng _cEG-GiCUC
041	0		_aeng
049			_aDeposite
097			_aM.Sc
099			_aCai01.09.11.M.Sc.2016.He.M
100	0		_aHeba Abdelfattah Mohamed Mostafa
245	1	0	_aMicro-hardness of incipient carious enamel lesions remineralized using fluoride, tri-calcium phosphate and nanohydroxyapatite versus resinous and resin modified glass ionomer infiltrants: _bin vitro study / _cHeba Abdelfattah Mohamed Mostafa ; Supervised Heba Salah Eldin Hamza , Dina Wafik ElKassas
246	1	5	_aصلابة السطح الدقية للتسوس البدائي لطبقة المينا المعالجة بإعادة التمعدن بإستخدام الفلورايد وثلاثي فوسفات الكالسيوم والنانوهيدروكسي اباتيت بالمقارنة مع الارتشاح بواسطة الراتنج والأيونومر الزجاجي المعدل بالراتنج : _bدراسة معملية
260			_aCairo : _bHeba Abdelfattah Mohamed Mostafa , _c2016
300			_a92 P. : _bcharts , facsimiles ; _c30cm
502			_aThesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Oral Surgery
520			_aObjectives: This study was conducted to compare between the effect non-invasive treatment modality using fluoride, Tri-Calcium Phosphate and nanohydroxyapatite based remineralizing agents versus micro-invasive treatment modality using Resinous and Resin modified glass ionomer Infiltrants materials on surface micro-hardness of incipient carious enamel lesions. Furthermore, the stability of these treatment options upon exposure to acidic challenge. Methods: A total of 60 sound human permanent molars were used in this study. The specimens were divided into six equal groups (10 teeth for each group) according to the treatment modality; Group (A0): Artificial saliva, Group (A1): fluoride, Group (A2): Tri-Calcium Phosphate, Group (A3): Nano Hydroxyapatite, Group (A4): Resin infiltrant and Group (A5): Resin modified glass ionomer infiltrant. The molars were decoronated and mounted in cylindrical self-cured acrylic resin molds with their buccal surface facing upwards. The buccal surface of each molar was polished using 400,600,800 and 1200 grit silicon carbide abrasive papers. A standardized window of 5mm {u00D7} 3mm dimension was created on the buccal enamel surface of each specimen which demarcated by acid resistant nail varnish of different colors. To induce incipient carious enamel lesions, specimens were immersed in demineralizing solution at pH45 for 72 hours at room temperatureAll treatments were applied according to the manufacturers{u2019} instructions. After application of the tested materials, all specimens were immersed in artificial saliva for two weeks.The specimens were finally subjected to acidic challenge using the same demineralizing protocol used for inducing caries-like lesions
530			_aIssued also as CD
653		4	_aDemineralization
653		4	_aFluoride
653		4	_aIncipient carious lesions
700	0		_aDina Wafik ElKassas , _eSupervisor
700	0		_aHeba Salah Eldin Hamza , _eSupervisor
856			_uhttp://172.23.153.220/th.pdf
905			_aNazla _eRevisor
905			_aShimaa _eCataloger
942			_2ddc _cTH
999			_c62967 _d62967