Effect of Chlorhexidine digluconate on endodontic sealers

November 29th 2022

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A recent study showed increased antimicrobial activity of three endodontic sealers after chlorhexidine contact. Cell toxicity and physicochemical properties were mostly negatively affected.
Effect of chlorhexidine digluconate on antimicrobial activity, cell viability and physicochemical properties of three endodontic sealers

, , , , , and | May 30th 2022

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The main hypothesis of the study as rejected as exposure to CHX affected sealers’ properties. CHX in contact
with sealer surfaces improved the antibacterial properties of the sealer leachates and reduced cell viability for all sealer leachates, except for freshly mixed PCS. Among the tested sealers, BioRoot RCS leachates presented the highest antibacterial properties and cell viability with and without CHX contact.

Fabrication techniques and ion release in cobalt-chromium alloys

October 28th 2020

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A recent study tested the behaviour of cobalt-chromium alloys under corrosive conditions mimicking the acidity observed in oral biofilm. Cobalt-chromium has become the alloy of choice for the framework of porcelain-fixed-to-metal (PFM) prosthetics also in combination with titanium implants. The alloy specimens were fabricated by both traditional casting, by milling and by laser melting and sintering.

Cobalt–chromium alloys fabricated with four different techniques: Ion release, toxicity of released elements and surface roughness

, , , , , and | September 15th 2020

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The aim of the study was to investigate the metal ion release, surface roughness and cytoxicity for Co–Cr alloys produced by different manufacturing techniques before and after heat treatment. In addition, to evaluate if the combination of materials affects the ion release.
In Vitro Effects of Dental Monomer Exposure – Dependence on the Cell Culture Model

, and | June 11th 2020

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Methacrylate monomers are major components of resin-based biomaterials. The polymerization of these materials is never complete, and methacrylates leaking from cured materials cause exposure of patients. Only some selected methacrylates have thoroughly been tested for possible interaction with living cells. In the current study, we compared the effects of 2-hydroxyethyl-methacrylate (HEMA; a carefully studied methacrylate) […]