Archivio Istituzionale della RicercaIn order to evaluate the influence of toothbrushing on the in vivo corrosion resistance of dental amalgams, immersion tests were carried out in vitro in artificial saliva at 37 °C under static and under dynamic conditions. Three types of dental amalgam were employed: a conventional type, a dispersion-type amalgam and a 'single-composition alloy' amalgam. Brushing of the surfaces avoids the accumulation of corrosion products and causes an accelerated corrosion of the amalgam. This phenomenon is particularly evident in the conventional amalgam. Observation of the surface by scanning electron microscopy (SEM) after 100 000 brushing strokes shows deep corrosion of the γ2-phase.
Influence of brushing and abrasion on the in vitro corrosion resistance of dental amalgams / Angelini, EMMA PAOLA MARIA VIRGINIA; P., Bianco; F., Zucchi. - In: SURFACE & COATINGS TECHNOLOGY. - ISSN 0257-8972. - STAMPA. - 34:4(1988), pp. 523-535. [10.1016/0257-8972(88)90107-7]
Influence of brushing and abrasion on the in vitro corrosion resistance of dental amalgams
ANGELINI, EMMA PAOLA MARIA VIRGINIA;
1988
Abstract
In order to evaluate the influence of toothbrushing on the in vivo corrosion resistance of dental amalgams, immersion tests were carried out in vitro in artificial saliva at 37 °C under static and under dynamic conditions. Three types of dental amalgam were employed: a conventional type, a dispersion-type amalgam and a 'single-composition alloy' amalgam. Brushing of the surfaces avoids the accumulation of corrosion products and causes an accelerated corrosion of the amalgam. This phenomenon is particularly evident in the conventional amalgam. Observation of the surface by scanning electron microscopy (SEM) after 100 000 brushing strokes shows deep corrosion of the γ2-phase.
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https://hdl.handle.net/11583/1653845
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