1. The Effects of Office Bleaching Techniques on Nanoceramic Composite Resin
- Author
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Esin ÜLPER, Cafer TÜRKMEN, Hale CİMİLLİ, and uelper E., Tuerkmen C., CİMİLLİ Z. H.
- Subjects
HARDNESS ,Sağlık Bilimleri ,Medical Ecology and Hydroclimatology ,SURFACE-ROUGHNESS ,Clinical Medicine (MED) ,Tıbbi Ekoloji ve Hidroklimatoloji ,Araştırma ve Teori ,MICROHARDNESS ,Health Sciences ,İncelemeler ve Referanslar (tıbbi) ,Klinik Tıp (MED) ,TIP, ARAŞTIRMA VE DENEYSEL ,RESTORATIVE MATERIALS ,composite resin ,GELS ,PEROXIDE ,Internal Medicine Sciences ,Klinik Tıp ,Research and Theory ,Dahili Tıp Bilimleri ,General Medicine ,CLINICAL MEDICINE ,Tıp ,LIGHT ,MEDICINE, RESEARCH & EXPERIMENTAL ,Reviews and References (medical) ,surface roughness ,Medicine ,Bleaching - Abstract
Objective: The aim was to evaluate the effect of activated bleaching agents on the nanoceramic composite resins based on microhardness and surface roughness measurements. Methods: Opalescence Boost (Ultradent Products, USA) and Whiteness HP Blue Calcium (FGM Dental Products, Brazil) bleaching agents and a nanoceramic composite resin Ceram.X® SphereTEC™ One (DENTSPLY, Germany) were used in the study. Fifty composite samples in disc form (8x2mm) were prepared. The samples were polished with discs (Sof-Lex, 3M Dental Products, St.Paul, USA) and incubated in the dark in distilled water. Samples were divided into 5 main groups (n=10). Control group (C), Opalescence Boost/ without light (OB), Opalescence Boost/ with light (OBL), Whiteness HP Blue/ without light (WB), and Whiteness HP Blue/ with light (WBL). Surface roughness (Ra) and Vickers microhardness (VHN) measurements were conducted after the bleaching process. Statistical analyses were performed using the Kruskal Wallis – H test and the Mann Whitney – U test; a p value of < 0.05 was considered statistically significant. Result: The VHN was significantly different among groups in terms of the application of bleaching agents and light (p = 0.008). The Ra was not significantly different among groups with respect to the application of bleaching agents or lighting conditions (p = 0.144). Conclusion: Within the conditions of this study, after bleaching procedure the microhardness values of the nanoceramic composite increased, however bleaching did not show any effect on surface roughness.
- Published
- 2023