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- Title
Translucency of nanoparticle-reinforced PMMA denture base material: An invitro comparative study.
- Authors
GAD, Mohammed M.; ABUALSAUD, Reem; ALQARAWI, Firas K.; EMAM, Abdel-Naser M.; KHAN, Soban Q.; AKHTAR, Sultan; MAHROUS, Amr A.; AL-HARBI, Fahad A.
- Abstract
The aim of this study was to assess the translucency of denture base acrylic resin reinforced with zirconium dioxide (ZrO2NPs), silicon dioxide (SiO2NPs), and diamond (DNPs) nanoparticles. A total of 130 heat-polymerized acrylic discs (15×2.5 mm) were fabricated conventionally and divided into control and experimental groups according to nanoparticle type and concentration (0.5, 1, 1.5, and 2.5 wt%). Unmodified acrylic resin specimens served as control. All specimens were thermocycled (5,000 cycles). Translucency was measured using a spectrophotometer. ANOVA and post-hoc Turkeys’ test were used for data analysis at α=0.05. The translucency of modified PMMA was significantly lower than control (p<0.05) except 0.5% ZrO2NPs and SiO2NPs (p>0.05) which exhibited the highest translucency values among modified groups. As the NPs concentration increased, the translucency decreased and the lowest value was seen with 2.5% DNPs (1.18±0.10). The addition of ZrO2NPs, SiO2NPs, and DNPs into denture base resin decreased the translucency.
- Subjects
DENTURES; ZIRCONIUM oxide; COMPARATIVE studies; SILICA; ACRYLIC resins
- Publication
Dental Materials Journal, 2021, Vol 40, Issue 4, p972
- ISSN
0287-4547
- Publication type
Article
- DOI
10.4012/dmj.2020-296