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The Influence of Adding Zero-Dimensional Nanomaterial on Certain Mechanical Properties of Repaired Heat -Cured Acrylic Denture Base | ||
| Tikrit Journal for Dental Sciences | ||
| Volume 12, Issue 2, December 2024, Pages 484-496 PDF (627.91 K) | ||
| DOI: 10.25130/tjds.12.2.24 | ||
| Author | ||
| Shurooq F. Altaie* | ||
| Prosthetic Dental Techniques Department, College of Health and Medical Techniques, Middle Technical University, Baghdad., Iraq | ||
| Abstract | ||
| Denture fracture is a prevalent issue in prosthodontic practice that affects patients and prosthodontists. This study aims to investigate the influnce of MgO nano fillers on flexural and impact strengthof repaired heat–cured acrylic resin denture base. Materials and methods: Sixty heat-cured acrylic resin specimens have been created according to the ISO standard 1567:1999/2003(E) for denture base polymers. Thirty specimens were created for flexural strength test with dimension of ( 65mm x10mm x2.5 mm ±0.1mm) and the other thirty specimens for impact strength test with dimension of (50mm x 6mm x 4mm ).Curing was done in a water bath machine,andcompleted the finishing and polishing. Then, the specimens separation were done by a separating disc . Each group was subdivided as follows: Group (A): control repaired done with self-curing resin without MgO nanoparticles, Group (B) and (C): the repaire wasdone with self-curing resin with the addition of MgO nanoparticles at concentrations of 2wt.%and 4wt.% (n=10). Curing repaired specimens in Ivomat device. Data were analyzed using Tukey HSD test andaP-value ≤ 0.05 was considered- a statistically significant.Results: TheTukey HSD test indicated significant difference P-value ≤ 0.05 in theflexural strength between control group and group 4wt. % MgO, whereas no significant differencewas identified between 2wt.%MgOwith4wt.%MgO. However,there was no significant difference in the impact strength (P ˃ 0.05) for all groups.Conclusions: The incorporation of 2wt.% of MgO nano fillers into repaired PMMA resin had no effect on flexural or impact strength. | ||
| Keywords | ||
| Self; cure resin Repair MgO nanoparticles f | ||
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