In Vitro Effect of Denture Cleansers on the Color Stability of Polyetheretherketone and Other Denture Base Polymers

The aim of this in vitro study was to compare the long-term effect overnight use denture cleansers with different chemical compositions on color stability base polymers (DBPs). four DBPs evaluated were PEEK (PK group), thermoinjection-molded polyamide (PA auto-polymerized polymethylmethacrylate (PMMA) (AP and heat-polymerized resin PMMA (HP group). cleaning agents used Corega tablet (CT), Protefix (PT), 0.5% sodium hypochlorite (NaOCl) solution (SH). Distilled water (DW) served as a control. Forty-eight disc-shaped specimens (10mm × 2mm) prepared from each DBP randomly immersed storage media (n=12 Color measurements before after immersion made using spectrophotometer (VITA Easyshade V). changes measured recorded L* a* b*. After 120 d, CIEDE2000 formula calculate (∆E00). For analysis data, multivariate variance (p<0.05). results statistical revealed significant change differences various Groups PA PK showed highest values for all solutions. AP-SH ∆E00 value group AP, no difference found between other In HP, there statistically average Long-term daily affected DBPs, although level acceptable. Laboratory clinical studies are needed confirm study.