<?xml version="1.0" encoding="UTF-8"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-10-19T00:27:18Z</responseDate><request verb="GetRecord" identifier="oai:ebyu-rdlopen.rawdatalibrary.net:ebyu/11292" metadataPrefix="oai_dc">https://ebyu-rdlopen.rawdatalibrary.net/oai/request</request><GetRecord><record><header><identifier>oai:ebyu-rdlopen.rawdatalibrary.net:ebyu/11292</identifier><datestamp>2026-10-18T21:13:16Z</datestamp><setSpec>openaire</setSpec><setSpec>driver</setSpec><setSpec>com_ebyu_10000</setSpec><setSpec>col_ebyu_10001</setSpec></header><metadata><oai_dc:dc xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd"><dc:title>The effect of whitening toothpastes on the color stability and surface roughness of stained resin composite</dc:title><dc:creator>Gömleksiz, Seda</dc:creator><dc:creator>Okumuş, Ömer Faruk</dc:creator><dc:subject>Activated charcoal</dc:subject><dc:subject>Color stability</dc:subject><dc:subject>Resin composite</dc:subject><dc:subject>Surface roughness</dc:subject><dc:subject>Whitening toothpaste</dc:subject><dc:subject>Coffee</dc:subject><dc:subject>Color</dc:subject><dc:subject>Composite Resins</dc:subject><dc:subject>Humans</dc:subject><dc:subject>Hydrogen Peroxide</dc:subject><dc:subject>Materials Testing</dc:subject><dc:subject>Microscopy, Atomic Force</dc:subject><dc:subject>Microscopy, Electron, Scanning</dc:subject><dc:subject>Silicon Dioxide</dc:subject><dc:subject>Spectrophotometry</dc:subject><dc:subject>Surface Properties</dc:subject><dc:subject>Tooth Bleaching</dc:subject><dc:subject>Tooth Bleaching Agents</dc:subject><dc:subject>Toothbrushing</dc:subject><dc:subject>Toothpastes</dc:subject><dc:subject>resin</dc:subject><dc:subject>tooth bleaching agent</dc:subject><dc:subject>toothpaste</dc:subject><dc:subject>atomic force microscopy</dc:subject><dc:subject>chemistry</dc:subject><dc:subject>dental procedure</dc:subject><dc:subject>human</dc:subject><dc:subject>procedures</dc:subject><dc:subject>scanning electron microscopy</dc:subject><dc:subject>surface property</dc:subject><dc:description>Background: This study aimed to investigate the effect of whitening toothpastes on the color stability and surface roughness of resin composites stained with coffee and cigarette smoke. Methods: Seventy-two disk-shaped specimens (6 × 2 mm) of suprananohybrid resin composite were randomly divided into two groups and exposed to coffee and cigarette smoke (n = 36). After staining, the samples randomly divided into four groups according to whitening toothpastes and were brushed for 4 min: Opalescence Whitening (OW); Colgate Optic White (COW); Curaprox Black is White (CPX) and, distilled water (control) (n = 9). Color was measured with spectrophotometer at the initial, after staining, and after brushing, and surface roughness was measured with profilometer at the initial and after brushing. A surface morphology analysis was examined using scanning electron microscopy and atomic force microscopy. The obtained data were statistically analyzed. (p &lt; 0.05). Results: Cigarette smoke caused a significantly higher color change than coffee in the resin composite (p &lt; 0.05). Brushing with hydrogen peroxide and silica-containing whitening toothpaste showed significant differences in color change (p &lt; 0.05). The lowest whitening effect was found in activated charcoal-containing toothpaste. While all toothpastes increased the degree of surface roughness of resin composites, the highest roughness was caused by whitening toothpastes containing activated charcoal. (p &lt; 0.05). Conclusions: The color stability and surface properties of resin composites can be affected by brushing them with whitening toothpaste. The utilization of whitening toothpaste containing hydrogen peroxide can be considered a safe method for increasing the whiteness of discolored resin composites. © The Author(s) 2024.</dc:description><dc:publisher>BioMed Central Ltd</dc:publisher><dc:date>2024</dc:date><dc:type>Article</dc:type><dc:identifier>https://rdlopen.rawdatalibrary.net/r/ebyu/11292</dc:identifier><dc:identifier>https://doi.org/10.1186/s12903-024-04654-3</dc:identifier><dc:identifier>1472-6831</dc:identifier><dc:language>en</dc:language><dc:relation>BMC Oral Health</dc:relation><dc:rights>info:eu-repo/semantics/openAccess</dc:rights><dc:type>info:eu-repo/semantics/article</dc:type><dc:identifier>https://ebyu-rdlopen.rawdatalibrary.net/tr/items/ebyu/11292</dc:identifier></oai_dc:dc></metadata></record></GetRecord></OAI-PMH>