000			03264cam a2200337 a 4500
003			EG-GiCUC
005			20250223032246.0
008			190417s2018 ua do f m 000 0 eng d
040			_aEG-GiCUC _beng _cEG-GiCUC
041	0		_aeng
049			_aDeposite
097			_aM.Sc
099			_aCai01.09.03.M.Sc.2018.Ab.M
100	0		_aAbdullah Abdelbaky Mohammad Diaa Eldeen Alafifi
245	1	0	_aMicrohardness of incipient enamel demineralization after novamin remineralization with or without pre-conditioning by air-abrasion using polyacrylic acid-bioactive glass : _bAn in vitro study / _cAbdullah Abdelbaky Mohammad Diaa Eldeen Alafifi ; Supervised Olfat Elsayed Hassanein , AsmaaYassen
246	1	5	_aالصلادة الدقيقة لشبه آفات مينا الأسنان الأولية بعد إعادة المعدنة بإستخدام مادة النو{u٠٦ء٤}امين مع أو بدون التكييف المسبق بالكشط الهوائي باستخدام حمض البولي أكريليك-والزجاج النشطة بيولوجيا : _b دراسة معملية
260			_aCairo : _bAbdullah Abdelbaky Mohammad Diaa Eldeen Alafifi , _c2018
300			_a81 P. : _bcharts , photographs ; _c25cm
502			_aThesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Operative Dentistry
520			_aObjectives: to evaluate the microhardness of incipient enamel-like lesions with or without pre-conditioning by air-abrasion using polyacrylic acid-bioactive glass before application of NovaMinremineralizing agent. Methods: Forty extracted human molars were selected , sectioned mesiodistally obtaining buccal and lingual halves and embedded in resin molds allowing each specimen to serve its own control. Specimens were randomly assigned to 4 groups (n=10) according to the remineralization protocol: G1- (Control, artificial saliva), G2- (pre-conditioning), G3- (NovaMin), G4- (pre-conditioning and NovaMin). Enamel windows 4mmx4mm were done on the buccal and lingual surfaces. Specimens were immersed in a daily renewed demineralizing solution to create artificial white spot lesions. Remineralizing agents were applied according to the manufacturer{u2019}s instructions and specimens were stored in a daily renewed artificial saliva. Microhardness was assessed using Vicker's hardness number (VHN) at baseline (positive control), after demineralization (negative control), 24 hours and one month remineralization. Results: pre-conditioning / NovaMin group after one month showed a statistically significant high VHN, with no statistically significant difference between it and the positive control. This was followed by NovaMin group after one month, while the lowest VHN was found in the demineralized group with no statistically significant difference between it and the pre-conditioning group, whether after 24 hours or one month
530			_aIssued also as CD
653		4	_aAir-abrasion
653		4	_aBioactive glass
653		4	_aCalcium-sodium phosphosilicate
700	0		_aAsmaaYassen , _eSupervisor
700	0		_aOlfat Esayed Hassanein , _eSupervisor
856			_uhttp://172.23.153.220/th.pdf
905			_aNazla _eRevisor
905			_aRania _eCataloger
942			_2ddc _cTH
999			_c71525 _d71525