An in vitro assessment of biaxial flexural strength, degree of monomer conversion, color stability, and ion release in provisional restorations containing Sr-bioactive glass nanoparticles

Autor: Chawal Padunglappisit, Napassorn Suwanprateep, Harit Chaiwerawattana, Parichart Naruphontjirakul, Piyaphong Panpisut
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Biomaterial Investigations in Dentistry, Vol 10, Iss 1 (2023)
Druh dokumentu: article
ISSN: 26415275
2641-5275
DOI: 10.1080/26415275.2023.2265393
Popis: AbstractThis study examined the mechanical and chemical properties of an experimental provisional restoration containing Sr-bioactive glass nanoparticles (Sr-BGNPs) compared to commercial provisional materials. The experimental material (TempS10) contained dimethacrylate monomers with added 10 wt% Sr-BGNPs. The degree of monomer conversion (DC) of self-curing (n = 5), biaxial flexural strength (BFS)/modulus (BFM) (n = 5), and color changes (ΔE*00) of materials in red wine (n = 5) were determined. Additionally, ion release (Ca, P, and Sr) in water at 2 weeks was examined (n = 3). The commercial materials tested included polymethyl methacrylate-based provisional material (Unifast) and bis-acrylic materials (Protemp4 and Cooltemp). TempS10 exhibited a comparable degree of monomer conversion (49%) to that of Protemp4 (60%) and Cooltemp (54%) (p > 0.05). The DC of Unifast (81%) was significantly higher than that of other materials (p
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