Abstract
Aim: The aim of this study was the microroughness evaluation of composite resin samples which are exposed to various types of drinks after brushing with whitening toothpaste. Material and Method: As acidic drinks coke, orange juice, sport drink, green tea, apple tea, green tea + lemon tea; as resin restorative materials Tetric, Premise and Filtek Z – 250; as whitening toothpaste Plus White were used during the study. 28 samples were prepared as 5 mm in diameter and 2 mm in thickness from every material. For three composite resin groups; we had 84 samples, totally. Every sample was immersed within the asidic drinks at room temperature for 3h/ day during 1 week. The control group samples were stored at % 0,9 isotonic sodium chloride without subjecting to any cycling. This process was repeated for 7 days, by renewing the used asidic drinks every day. The samples were brushed every day with brushing machine, after removing asidic drinks. After the samples were dried at the end of 7 days, surface roughness was measured by using (Surftest 211.Mitutoyo, Japan) profilometer equipment. Results: When surface roughness values of all materials has been examined, no significant difference has been actuarially observed among the roughness values of the composite samples kept into 0.9% isotonic sodium chloride (p>0.05); whereas, it has been determined that sports drink significantly causes more roughness than the other drinks in composite resin samples (p<0.05). It has been determined that, actuarially, Premise samples kept into sports drink are significantly more rough than Tetric and Filtek Z-250 (p<0.05). Conclusion: After being subjected to acidic beverages brushing with whitening toothpastes, composite resin samples were observed to cause microroughness.
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