Evaluation of Color Stability of Polymethylmethacrylate (PMMA) versus Polyetheretherketone PEEK, Invitro Study. | ||||
| Sue Oral and Dental Medicine Journal | ||||
| Volume 1, Issue 2, June 2025, Page 90-94 PDF (278.35 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/suodmj.2025.398396.1015 | ||||
 View on SCiNiTO | ||||
| Author | ||||
Abd Allah El-Saadany 
| ||||
| Alsalam university | ||||
| Abstract | ||||
| Aim of the work: The aim of this study to evaluate color stability of PMM and PEEK as denture base materials. Materials and methods: Twenty specimens of PMMA and PEEK were prepared according to ISO/FDIS 20795-1 by milling machine with (50 ± 1) mm diameter and (0,5 ± 0,1) mm thickness. All PMMA and PEEK specimens were stored in the oven for 24 h ± 30 min at (37 ± 1) °C. Then ten specimens of each PMMA and PEEK were stored in the dark in a laboratory environment. Another 10 specimens of PEEK and PMMA were aging according to ISO 7491:2000 guidelines. The specimen’s colors were measured before and after aging using a portable Reflective spectrophotometer. The color changes (ΔE) of the specimens were measured according to ISO/FDIS 20795-1, statistical analysis was made by SPSS Statistical Package of Social Science version 25. Results: Before aging, highest color stability mean value was exhibited in PEEK (ΔE = 1.8 ± 0.12). lowest color stability mean value was exhibited in PMMA (ΔE = 4.6 ± 0.35). After artificial aging, PEEK showed the least color alteration with a ΔE value of (3.6 ± 0.21), then PMMA (ΔE = 7.9 ± 0.77). Conclusion: Within the limitations of this study, PEEK is the best color stable, while PMMA exhibited higher susceptibility to color change. | ||||
| Keywords | ||||
| Color Stability; PEEK; Denture Base Materials; Artificial Aging; Spectrophotometer | ||||
|
Statistics Article View: 35 PDF Download: 22 |
||||
