Effect of Fluoride Releasing Adhesives and Fluoride Uptake by Tooth Substrate on Nanoleakage and Shear Bond Strength of Resin Composite to Dentin / By Asmaa Yousef Abd El Hameed Harhash ; supervisors Randa Mohamed Hafez, Mohamed Riad Farid, Ola Ibraheem Fahmy.

By:

Harhash, Asmaa Yousef Abd El Hameed [author]

Contributor(s):

Material type: Text

TextPublisher: 2007Description: 158 pages : illustrations ; 30 cmContent type:

text

Media type:

unmediated

Carrier type:

volume

Other title:

تأثير اللواصق المطلقة للفلورين واﻻمتصاص السني للفلورين على التسرب النانومتري وقوة الربط القصي بين الكمبوزيت الراتنجي والعاج السني

Subject(s):

DDC classification:

617.64 H.A.E 21

Dissertation note: Thesis (Ph. D.)-Cairo University, Faculty of Oral and Dental Medicine, 2007. Summary: This research was designed to measure and compare the rate of fluoride release from two different types of fluoride releasing adhesive systems and the amount of fluoride uptake by dentin at different time intervals namely; one day, one week, one month and three months compared to a non fluoride releasing system. Then to investigate whether leaching out of fluoride from fluoride-releasing adhesives affected the nanoleakage and shear bond strength between resin composite and dentin before and after thermocycling at the aforementioned time intervals. For fluoride release test, a total of 60 cylindrical specimens were prepared from the different tested adhesive materials (Xeno III, P and B NT and Adper Single Bond 2) and divided equally between the three adhesive systems. Fluoride released in deionized water was assessed using a microprocessor-based portable fluoride meter, readings were recorded every weekSummary: A total of three hundred intact, sound, freshly extracted permanent human molar teeth, were selected and divided among the performed tests. Specimens were further subdivided and stored for four different storage periods in deionized water till they were treated according to the different testing procedures. Sixty teeth were used in the fluoride uptake test. Class V cavities were prepared on the buccal surface and restored with the investigated materials, then stored till tested. The ESEM was used to determine the amount of fluoride uptake by dentin after sectioning of the teeth longitudinally through the restoration. Analysis of percentage of fluoride present was carried out using EDAX.

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Holdings
Item type	Current library	Collection	Call number	Status	Date due	Barcode
Thesis	Main library C5 PHD	Dental sciences ( General )	617.64 H.A.E (Browse shelf(Opens below))	Not for loan		00008717

Supervisors : Mohsen H. Abi-Elhassan, Ola M. Fahmy, Heba Ahmad Farag.

Thesis (Ph. D.)-Cairo University, Faculty of Oral and Dental Medicine, 2007.

Bibliography: pages 147-158.

This research was designed to measure and compare the rate of fluoride release from two different types of fluoride releasing adhesive systems and the amount of fluoride uptake by dentin at different time intervals namely; one day, one week, one month and three months compared to a non fluoride releasing system. Then to investigate whether leaching out of fluoride from fluoride-releasing adhesives affected the nanoleakage and shear bond strength between resin composite and dentin before and after thermocycling at the aforementioned time intervals. For fluoride release test, a total of 60 cylindrical specimens were prepared from the different tested adhesive materials (Xeno III, P and B NT and Adper Single Bond 2) and divided equally between the three adhesive systems. Fluoride released in deionized water was assessed using a microprocessor-based portable fluoride meter, readings were recorded every week

A total of three hundred intact, sound, freshly extracted permanent human molar teeth, were selected and divided among the performed tests. Specimens were further subdivided and stored for four different storage periods in deionized water till they were treated according to the different testing procedures. Sixty teeth were used in the fluoride uptake test. Class V cavities were prepared on the buccal surface and restored with the investigated materials, then stored till tested. The ESEM was used to determine the amount of fluoride uptake by dentin after sectioning of the teeth longitudinally through the restoration. Analysis of percentage of fluoride present was carried out using EDAX.

Text in English, abstracts in English and Arabic.

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