[Pulp tissue response to a glass and silver filings ionomer used as a permanent capping material]

A study was undertaken to ascertain the effect of [glass-and-silver fillings ionomer] on the pulp tissue at different times (15, 30 and 60 days). For that purpose, 34 premolars were evaluated, on which a basic coating of calcium hydroxide was applied previous to their obturation with an ionomer cement (Ketac Silver). Dental organs were divided in four groups, namely: untreated control, and three groups of 10 premolars which were extracted after 15, 30 and 60 days. Results yielded by this research suggest that applying a calcium hydroxide coating is not enough to prevent the toxic effect of the glass ionomer on the pulp.