الفهرس 
Introduction.Only 14 pages are availabe for public view
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Abstract
This study was conducted to evaluate the effect of applying potassium- iodide (KI) and glutathione (GSH) on silver-diamine fluoride (SDF) induced demineralized dentin discoloration as well as their effect on its remineralization potential.
To examine color change, cervical dentinal artificially demineralized cavities were performed mesially and distally in 16 human premolars giving 32 cavity samples. Glass-ionomer restoration (GIC) was applied and allocated to four groups I-IV (n=8) according to the following pre-treatments: No pre- treatment, SDF, SDF+KI, SDF+20%(wt) GSH. Spectrophotometric evaluation of samples at time intervals: 1,7 and 14 days of GIC application.
On the other hand, to examine the effect of remineralization, 21 bovine dentin blocks acquired from the buccal and palatal wall of cervical bovine anterior roots, were divided into groups I-III (n=7): SDF, SDF + KI, and SDF
+ GSH. Vickers microhardness was measured on three intervals, before and after artificial demineralization and after 7 days of treatment.
The spectrophotometric results showed significant differences among all groups after 14 days. Groups III and IV showed significant reduction in ΔE compared with group II, although they showed significant increase in ΔE compared with group I. KI showed better management of SDF discoloration than GSH.
The microhardness test results showed significant difference in all groups (I-III) after treatment application to demineralized dentin. KI and GSH didn’t affect SDF remineralization potential to demineralized dentin. Both showed significant increase in microhardness of demineralized dentin, which was comparable to that of SDF.