TY - JOUR T1 - Evaluating the effects of bleaching on color stability and surface roughness in single-shade and multi-shade resin composites AU - Tepe, Hatice AU - Çeliksöz, Özge AU - Biçer, Zeynep AU - Yaman, Batucan PY - 2024 DA - October Y2 - 2024 DO - 10.38053/acmj.1543644 JF - Anatolian Current Medical Journal JO - Anatolian Curr Med J / ACMJ / acmj PB - MediHealth Academy Yayıncılık WT - DergiPark SN - 2718-0115 SP - 372 EP - 381 VL - 6 IS - 6 LA - en AB - Aims: This study aimed to evaluate the effects of aging and bleaching procedures on the color stability and surface roughness of single-shade composite resins and compare them with a multi-shade composite resin.Methods: Fifty composite resin specimens (n=10 per group) from five brands— Omnichroma (Tokuyama, Japan) (OMN), Zenchroma (President Dental, Germany) (ZNC), Charisma Diamond One (Kulzer, Germany) (CHR), Essentia Universal (GC Corporation, Japan) (ESU) and one multi-shade composite resin Filtek Z550 (3M ESPE, USA) (FLT), —were subjected to aging (1-year simulated staining and brushing) and bleaching procedures. Color measurements were taken at baseline, after aging, and after bleaching using a spectrophotometer, while surface roughness was measured using a contact mode profilometer. Data were analyzed using Generalized Linear Models and Tukey’s test for multiple comparison, with a significance level set at p KW - Single-shade composites KW - multi-shade composites KW - color stability KW - surface roughness KW - bleaching CR - Cho K, Rajan G, Farrar P, et al. Dental resin composites: a review on materials to product realizations. Compos B Eng. 2022; 230(1):109495 CR - Leal CdFC, Miranda SB, Alves Neto ELd, et al. Color stability of single-shade resin composites in direct restorations: a systematic review and meta-analysis of randomized controlled trials. Polymers. 2024;16(15):2172. CR - Ismail EH, Paravina RD. Color adjustment potential of resin composites: optical illusion or physical reality, a comprehensive overview. J Esthet Restor Dent. 2022;34(1):42-54. 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