@article{ijdsr20221013,
author={{Abdelfattah, Mohamed Y. and Humayyani, Nouf Al},
title={The Impact of Adding Different Proportions of Recycled Polyetherether Ketone (PEEK) Particles Fibers as a Denture Repairing Material on Mechanical Properties of Polymethyl Methacrylate},
journal={International Journal of Dental Sciences and Research},
volume={10},
number={1},
pages={8--12},
year={2022},
url={http://pubs.sciepub.com/ijdsr/10/1/3},
issn={2333-1259},
abstract={<b>Aim:</b> This laboratory research aimed to assess the impact of addition of various proportions of recycled Polyetherether Ketone (PEEK) particles fibers as a reinforcing filler material on Surface hardness, Surface roughness and Flexural strength of heat cured Polymethyl methacrylate. <b>Materials and methods:</b> .A total of 90 ; specimens of heat polymerized PMMA stored at 37¡ãC water path prior to breaking were divided into 3 main groups; 30 to test surface harndness,30 for surface roughness, and 30 to test Flexural strength with different specifications rather than those which test the surface hardness and surface roughness. For each test, the specimens were subdivided into 3 subgroups; Group I (control group n=10): specimens repaired with auto polymerizing PMMA without any additives. For Group II(n=10), and III(n10), the discarded PEEK particles remained After CAD/CAM milling process, gathered from the device, and recycled to produce particle size of 150 ¦Ìm using standard sieves of ISO standardization, no 40, 60 and 100. Group II and III specimens repaired with auto polymerizing PMMA strengthened with 1%wt. and 2%wt PEEK particles respectively. Hardness Testing Instrument FH-5 and Laser Abrasion Measurement System LAS-20 devices used to measure surface hardness and surface roughness, respectively. Hardness Testing Instrument Fh-5 was used to measure the Flexural strength. Statistical analyses were done using the One-way ANOVA test. <b>Results:</b> regarding surface hardness, there were significant improvements in Groups II&amp;III. than group I. Insignificant differences in surface roughness between group I&amp;II, and between Group II&amp;III were documented. Conversely, a marked improvement in the surface roughness was recorded between group I&amp;III. Regarding flexural strength, a significant improvement in Group III in comparison with group I or II <b>Conclusion: </b>Addition of PEEK particles fibers as filler material can be used to repair heat polymerized PMMA with improvement of the surface hardness, flexural strength, and decreased surface roughness.},
doi={10.12691/ijdsr-10-1-3}
publisher={Science and Education Publishing}
}