Evaluating the Effect of Polyetheretherketone Particles Adding on Some Mechanical Properties of Polymethacrylate Denture Base Material


Aims: The aim of the present study was to assess some mechanical properties of PMMA after incorporating with polyetheretherketone particles (vectrex peek polymer) (PEEK) material with a different percentage (1%, 2% and 3%). Materials and Methods: The PEEK particle size of 130μm. The PEEK of 1%, 2% and 3% wt. respectively was added to the PMMA resin base to achieve a PMMA/PEEK composite of three different particles percentage to compare with the PMMA with no additives (control). The conventional heat-curing method was applied using a water bath to polymerize the specimens for both Vickers hardness, tensile and transvers strength tests. Study data were analysed via One-way ANOVA (post-hoc/Tukey test) performed at significant P-value of (p≤0.05) and confidence. Results: After comparing the results, a significant alteration in the hardness, tensile and transvers strength of PMMA/2%PEEK composites was noticed comparing to other tested groups (p≤0.05). Conclusions: the polyetheretherketone particles used as dental filler at 1%, 2% and 3% wt. added to PMMA reduced the tensile strength and enhanced the hardness and transvers strength of PMMA denture base material