Effects of different concentrations of metal ions on the adherence ability of mutans streptococci, in vitro

Abstract EN

In this study different concentrations of zinc, copper, strontium and lithium ions were tested for their ability to prevent adherence of mutans streptococci in vitro.

A model of a tooth held by a stainless wire and inserted in sucrose broth was used.

After seven days of incubation results showed that copper ion at conc.

10, 50, and 100 mmol / L were effective in prevention of adherence of bacteria when used for one minute.

While Zinc ions at conc.

of 7.5 and 10 mmol / L required 2 minutes to be effective and one minute at conc.

25 and 50 mmol / L.

Lithium at conc.

of 600, 800 and 1000 mmol / L were effective when used for two minutes.

The only strontium were not able to prevent adherence at all conc.

Tested (100, 250 and 400 mmol / L) for one or two minutes treatment periods.