Effects of Gadolinium Oxide Nanoparticles and Curing Techniques on the Acrylic Mechanical Properties

Auteurs-es

  • Mithaq R. Mohammed College of dentistry-Al-Iraqia University/ Iraq-Baghdad
  • Abdalbseet A. Fatalla Department of Prosthodontics, College of Dentistry, University of Baghdad, Baghdad, Iraq.
  • Matheel Al-Rawas Prosthodontic Unit, School of Dental Sciences, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu, Kelantan, Malaysia
  • Yanti Johari School of Dentistry, Management and Science University, University Drive off Persiaran Olahraga, Section 13, 40100 Shah Alam, Selangor, Malaysia

DOI :

https://doi.org/10.5195/d3000.2026.1126

Mots-clés :

Prosthodontics, Dentures, Tooth Loss

Résumé

Objective: This study investigated the effects of gadolinium oxide (Gd₂O₃) nanoparticles on polymethyl methacrylate (PMMA) and compared the mechanical properties of denture base resins cured via UV laser and conventional water bath techniques.

Methods: Forty PMMA specimens were prepared, with half incorporating Gd₂O₃ nanoparticles. Samples were cured using one of two methods: a UV laser (150–400 nm wavelength, 10–25 minutes irradiation time) or a conventional water bath (74°C for 8 hours). The mechanical properties of all specimens were evaluated through transverse strength testing, porosity analysis, and surface roughness measurements.

Results: UV laser-cured specimens exhibited significantly higher transverse strength and significantly reduced porosity compared to water bath-cured specimens. Surface roughness showed a slight, non-significant increase with laser curing. The findings suggest that UV laser curing, combined with Gd₂O₃ nanoparticles, enhances PMMA’s mechanical properties, offering a faster, more precise alternative to traditional water bath curing with potential clinical benefits in denture durability.

Conclusion: The findings indicate that UV laser curing, especially when combined with Gd₂O₃ nanoparticles, enhances PMMA’s mechanical properties by improving polymerization efficiency and reducing porosity. This method offers a faster and more precise alternative to traditional water bath curing, with potential clinical benefits for denture durability and performance.

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Publié-e

2026-02-12

Numéro

Vol. 14 No. 1 (2026)

Rubrique

Adults & the Elderly

Licence

© Mithaq R. Mohammed, Abdalbseet A. Fatalla , Matheel Al-Rawas, Yanti Johari 2026

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