Adhesion ofE. coliBacteria Cells to Prosthodontic Alloys Surfaces Modified by TiO₂Sol-Gel Coatings

Abstract

The evaluation of the degree of bacteriaE. coliadhesion to modified surfaces of the chosen prosthodontic alloys was presented. The study was carried out on Co-Cr (Wironit), Ni-Cr (Fantocer), and Fe-Cr-Ni (Magnum AN) alloys. Bare substrate as a control and titanium dioxide coated samples were used. The samples were placed for 24 hours in bacterial culture medium. After incubation period, a number of bacterial cells were evaluated by scanning electron microscope. The study revealed that modification of the alloy surfaces by titanium dioxide coating significantly decreases the amount of bacteria adhering to the surfaces and that additionally bare metal alloy substrates have a different degree of susceptibility to bacterial adhesion.

Carbon Coatings Deposited on Prosthodontic Ni-Cr Alloy

“…Figure 3 presents typical Raman spectra of manufactured carbon coatings with their deconvolution employing four-peak fitting method. Namely, D1, D2, G1 and G2 Gaussians, according to the literature [36]. The obtained de-convolution results resemble those, typical for diamond-like carbon coatings (DLC), widely presented in the literature [37].…”

Formation ofEscherichia colibiofilms on the titanium alloy Ti6Al4V: analysis of the interface and assessment of corrosion

“…In an aqueous medium, this results in the accumulation of H 2 CO 3 that ultimately dissociates, thereby releasing H + ions. This mechanism was introduced by Banaszek et al [55] who explained that E. coli could influence corrosion and the deterioration of metal surfaces via the production and release of corrosive microbial byproducts. However, the surface of the Ti did not undergo deterioration because the kinetics in the acidic medium favoured the formation of corrosion products (i.e.…”

Effect of Recasted Material Addition on the Quality of Metal‐Ceramic Bond: A Macro‐, Micro‐, and Nanostudy

“…e low roughness is very important to avoid bacterial adhesion (size of about 1 μm) on the alloy surface when parts of the crown, not coated with the porcelain veneer, may remain in contact with the oral environment [18][19][20][21].…”