Comparative Evaluation of Mechanical Properties of Dental Nanomaterials
Küçük Resim Yok
Tarih
2017
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Hindawi Ltd
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
This study examines the properties of nanobased dental restorativematerials with nanoindentationmethod in a precise, repeatable, and comparableway. Microhybrid and nanohybrid composites, conventional glass ionomermaterials, and light cured nanoionomer materialswere utilised for the study. Specimen discs (r = 10mm, h = 2 mm) were prepared to test the hardness, modulus of elasticity, yield strength, and fracture toughness values for each sample in a nanoindentation device with an atomic force microscopy addon (n = 25). Comparative analyses were performed by one-way ANOVA and post hoc Tukey tests. The hardness and modulus of elasticity values of nanocomposite were higher (2.58 GPa and 32.86GPa, resp.) than those of other dental materials. Although glass ionomer exhibited a hardness that was similar to a nanoionomer (0.81 versus 0.87GPa), glass ionomer had the lowest fracture toughness value (K-c = 0.83MPa/mm(0.5)). The mechanical properties of resin composites improve with additional nanoscale fillers, unlike the glass ionomer material.
Açıklama
Anahtar Kelimeler
Kaynak
Journal of Nanomaterials
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
