Influence of the artificial saliva storage on 3‐D surface texture characteristics of contemporary dental nanocomposites

Texture (cosmology) Box counting
DOI: 10.1111/jmi.12432 Publication Date: 2016-06-17T09:12:57Z
ABSTRACT
The aim of this study was to analyse the influence artificial saliva on a three-dimensional (3-D) surface texture contemporary dental composites. representatives four composites types were tested: nanofilled (Filtek Ultimate Body, FUB), nanohybrid Z550, FZ550), microfilled (Gradia Direct, GD) and microhybrid Z250, FZ250). specimens polymerised polished by multistep protocol (SuperSnap, Shofu). Their examined, before after 3 weeks' exposure storage. analysed using atomic force microscope (AFM). obtained images processed calculate areal autocorrelation function (AACF), anisotropy ratio Str (texture aspect ratio), structure (SF). log-log plots SF used fractal properties, such as dimension D, pseudo-topothesy K. analysis showed changes in values, which became higher, whereas Sq roughness (root-mean-square) reduced All samples exhibited bifractal treatment, but only half them remained afterwards (GD, FZ250), other turned into monofractal (FUB, FZ550). cube-count Dcc found be material- treatment-insensitive.
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