000			02878cam a2200337 a 4500
003			EG-GiCUC
005			20250223032454.0
008			191207s2018 ua d h f m 000 0 eng d
040			_aEG-GiCUC _beng _cEG-GiCUC
041	0		_aeng
049			_aDeposite
097			_aPh.D
099			_aCai01.09.03.Ph.D.2018.He.I
100	0		_aHeba Helal Mounir Abdelshafi Alsherbiney
245	1	0	_aIn situ evaluation of dentinal tubule occlusion of hydroxyapatite-containing toothpaste or calcium sodium phosphosilicate-containing toothpaste for treatment of dentin hypersensitivity / _cHeba Helal Mounir Abdelshafi Alsherbiney ; Supervised Omaima Safwat Hamza , Heba Ahmed Eldeeb
246	1	5	_aتقيم مكانى لإغلاق القنوات العاجيه لمعجون الأسنان المحتوى على الهيدروكسى أبيتايت أو لمعجون الأسنان المحتوى على الكالسيوم صوديوم فوسفوسيليكيت لعلاج حساسيه الأسنان
260			_aCairo : _bHeba Helal Mounir Abdelshafi Alsherbiney , _c2018
300			_a124 P. : _bcharts , facsimiles ; _c25cm
502			_aThesis (Ph.D.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Operative Dentistry
520			_aIntroduction Dentin hypersensitivity is a common dental problem The most accepted theory for dentin hypersensitivity known as the hydrodynamic theory. This theory explains that the exposure of open dentinal tubules to stimuli activating mechanoreceptors that elicit short sharp pain. Materials and methods: A total number of forty two patients received two customized intra-oral appliances. A dentin specimen was attached to the customized intra-oral appliance. Patients were divided into two groups according to the tooth paste used; calcium sodium phosphosilicate or hydroxyapatite containing tooth paste. They were subdivided into three subgroups according to the testing periods: 24 hour, six and eight weeks. Patients were recalled after each time interval to obtain the dentin specimen which was reexamined under the scanning electron microscope and analyzed for dentinal tubules occlusion. Results: Results of the image analysis revealed a statistical significant difference between hydroxyapatite and calcium sodium phosphosilicate containing tooth pastes regardless follow up periods at (P=0.013). And there was no statistical significant difference comparing different follow up periods regardless of the tooth paste used (P=0.135)
530			_aIssued also as CD
653		4	_aCalcium sodium phosphosilicate
653		4	_aHydroxyapatite
653		4	_aHypersensitivity
700	0		_aHeba Ahmed Eldeeb , _eSupervisor
700	0		_aOmaima Safwat Hamza , _eSupervisor
856			_uhttp://172.23.153.220/th.pdf
905			_aAsmaa _eCataloger
905			_aNazla _eRevisor
942			_2ddc _cTH
999			_c75675 _d75675