Color stability, mineral content and surface topography of bleached enamel : In vivo and in vitro studies / Ali Essam Abdelnabi ; Supervised Amira M. Farid Alzoghbi , Mohammad Hussien Zaazou , Sherine Hafez Ibrahim

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Ali Essam Abdelnabi

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TextLanguage: English Publication details: Cairo : Ali Essam Abdelnabi , 2013Description: 145 Leaves : facsimiles ; 30cmOther title:

{uFE9B}{uFE92}{uFE8E}ت ا{uئإؤئ}{uئإإ٠}{uئإإإ}ن: ا{uئإؤئ}{uئإإ٤}{uئإء٤}{uئإ٩٨}{uئإإإ}ى ا{uئإؤئ}{uئإؤ٤}{uئإإ٠}{uئإءأ}ى و {uئإ٩٧}{uئإؤ٠}{uئآئئ}{uئإءإ}ات ا{uئإؤئ}{uئإآ٤}{uئإأ٤}{uئإء٢} {uئإؤئ}{uئإإ٠}{uئإإ٤}{uئآئئ}{uئإإ٨}{uئإ٨إ} ا{uئإؤئ}{uئإإ٤}{uئإ٩٢}{uئآئئ}{uئإأ٠}{uئإ٩٤} : درا{uئإآ٣}{uئإ٨إ}ت {uئإأآ}{uئإإ٤}{uئإإ٠}{uئآئئ}{uئإ٩٤} و {uئإإ٣}{uئإأأ}{uئإإ٤}{uئإإ٠}{uئآئئ}{uئإ٩٤} [Added title page title]

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Dissertation note: Thesis (Ph.D.) - Cairo University - Faculty of Oral and Dental Medicine- Department of Operative Dentistry Summary: Purpose: This study was carried out to evaluate the color stability of bleached enamel after bleaching with four different bleaching agents. Materials and Methods: Twenty subjects were selected from an age group from 18 to 35 years according to the inclusion criteria. Subjects were divided into four groups (B) according to the bleaching agent used where B1 for Zoom bleaching agent, B2 Dash, B3 DayWhite and B4 for DioxiWhite. Color parameters (L*,a*,b*) of all specimens were measured before and after bleaching and at time intervals of 1 and 3 months with a spectrophotometer. Color changes ({u2206}E) were calculated. Data was statistically analyzed. Results: Zoom showed the highest immediate significant tooth whitening followed by Dash, DayWhite and DioxiWhite with insignificant differences.Conclusion: in-office bleaching agents used in this study (Zoom & Dash) Showed higher and more stable bleaching effect than At-home agents (DayWhite & DioxiWhite)

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Item type	Current library	Home library	Call number	Copy number	Status	Date due	Barcode
Thesis	قاعة الرسائل الجامعية - الدور الاول	المكتبة المركزبة الجديدة - جامعة القاهرة	Cai01.09.03.Ph.D.2013.AL.C (Browse shelf(Opens below))		Not for loan		01010110064633000
CD - Rom	مخـــزن الرســائل الجـــامعية - البدروم	المكتبة المركزبة الجديدة - جامعة القاهرة	Cai01.09.03.Ph.D.2013.AL.C (Browse shelf(Opens below))	64633.CD	Not for loan		01020110064633000

Thesis (Ph.D.) - Cairo University - Faculty of Oral and Dental Medicine- Department of Operative Dentistry

Purpose: This study was carried out to evaluate the color stability of bleached enamel after bleaching with four different bleaching agents. Materials and Methods: Twenty subjects were selected from an age group from 18 to 35 years according to the inclusion criteria. Subjects were divided into four groups (B) according to the bleaching agent used where B1 for Zoom bleaching agent, B2 Dash, B3 DayWhite and B4 for DioxiWhite. Color parameters (L*,a*,b*) of all specimens were measured before and after bleaching and at time intervals of 1 and 3 months with a spectrophotometer. Color changes ({u2206}E) were calculated. Data was statistically analyzed. Results: Zoom showed the highest immediate significant tooth whitening followed by Dash, DayWhite and DioxiWhite with insignificant differences.Conclusion: in-office bleaching agents used in this study (Zoom & Dash) Showed higher and more stable bleaching effect than At-home agents (DayWhite & DioxiWhite)

Issued also as CD

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