Aim: The aim of this study is to evaluate the effects of whitening toothpaste applications on the color stability of different tooth-colored restorative materials (Fuji IX, GC Fuji II LC, Equia Forte, and Kerr Point 4)  Methodology: Standardized fourty disc-shaped specimens were prepared from esthetic restorative materials and polished. The baseline color values of each specimen were then measured using a spectrophotometer, according to the Commission Internationale de l'Eclairage L*, a*, and b* (CIELAB) color scale. Ten specimens from each group were then immersed in two different beverages (cherry juice and coke) for seven days. After immersion, the color value of each specimen was re-measured. Each sample was brushed with whitening toothpaste for 30 seconds using an electric toothbrush. The samples were kept in distilled water at room temperature and brushing continued twice a day for seven days. The color change value, Delta E (ΔE), was calculated. Data were analyzed by two-way ANOVA and post hoc Tukey's test. Results: When the results were evaluated, after the colored samples had been brushed with whitening toothpaste, a difference was found between the Delta E values according to the materials used (p<0.001), but no difference was found in relation to the beverages (p>0.001). When the values of the color changes were evaluated after the first brushing with whitening toothpaste and before the specimens were colored with drinks, a difference was observed in the Fuji II cola, Fuji II cherry, and Equia Forte cola groups (p<0.05). When the values of the color changes were evaluated for specimens in which brushing had been done twice a day for seven days with whitening toothpaste and before they were colored with drinks, a significant difference was observed in the Fuji II cherry and Equia Forte cola groups (p<0.05). Conclusion: Using Signal White Now whitening toothpaste for 2 min 2 times a day for seven days caused significant changes in the color of the restorative materials. The color change is dependent upon the type of restorative material that is used.   How to cite this article: Kahvecioğlu F, Çoban E, Ülker HE. The effect of optical brightening toothpaste on the color stability of esthetic restorative materials. Int Dent Res 2021;11(Suppl.1):80-4. https://doi.org/10.5577/intdentres.2021.vol11.suppl1.13   Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.

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Objective: The aim of this study is to evaluate the effects of different types of mouthwashes (Klorhexidin, Curasept ADS 205, Meridol, Listerine Cool Citrus) on the surface roughness and color changes of a microhybrid (Point 4), a bulk fill (SonicFill), and a nanohybrid (Nova Compo-N) resin-based composite (RBC). Materials and Methods: Disk-shaped specimens were prepared from tested RBCs and divided into four subgroups which immersed in four different types of mouthwashes. The specimens were subjected to immersion cycles in the mouthwashes and artificial saliva (n = 8). Each cycle consisted of complete immersion in a mouthwash for 21 min and afterwards in saliva for 12 h at 37°C, and this cycle was repeated 8 times. The surface roughness was evaluated using a profilometer and coloration was evaluated using a spectrophotometer before and after immersion time. One-way analysis of variance (ANOVA) for the evaluation of surface roughness data was performed, and interrelation between groups was identified with the Sheffe's multiple comparison test. Results: There were no significant differences between the Ra values of the RBCs before and after immersion in mouthwashes (P > 0.05). There were significant differences between ΔE value of the SF and NCN groups before and after immersion time (P < 0.05). Conclusion: Mouthwashes contribute to oral health, especially in patients at high risk of caries. However, in such patients, patient-specific recommendations should be made when using mouthwashes due to the large number of composite fillings.

Ön bölgedeki şekil ve pozisyon bozukluklarının tedavisinde direkt kompozit rezin restorasyonlar uygulanabilmektedir. Bu olgu sunumunun amacı, direkt yöntemle kompozit rezin kullanılarak ön bölgedeki estetik sorunların tedavisi ile ilgili bir olgu sunumunu anlatmaktır. Kliniğimize estetik şikâyetlerle başvuran 32 yaşındaki erkek hastanın özgeçmişinde sistemik bir hastalığı olmadığı öğrenildi. Hastaya tedavi yöntemleri anlatıldı ve direkt kompozit veneerler ile dişlerin estetik olarak restore edilmesine karar verildi. Restorasyon tamamlandıktan sonra bitirme ve cila işlemleri yapıldı. 10 gün sonra yapılan klinik değerlendirmede; restorasyonların fiziksel özellikleri, marjinal bütünlüğü ve estetik özellikleri kontrol edildi. Kontrol seansında yapılan restorasyonların hastanın estetik beklentilerini karşıladığı belirlendi. Bu olgu sunumundan elde edilen değerlendirmelere göre kompozit veneerler ortodontik tedavi düşünülmeyen hastalarda estetik olarak alternatif bir tedavi seçeneği olabilir.