A comparison of bond strengths of complete crowns using two types of cements and three cleaning agents / Uma comparação de resistência de união de coroas completas usando dois tipos de cimentos e três agentes de limpeza

ABSTRACT

This study evaluated the influence of three cleaning agents on the bond strength of complete crowns cemented with zinc phosphate and polycarboxylate cements. For the polycarboxylate cement group, three cleaning agents were used Tergentol; Tergentol + polyacrylic acid; Tergentol + citric acid. Zinc phosphate cement was used as a control group with Tergentol. There were no statistically significant differences of mean retentive force for either cement regardless of the testconditions. The marginal fit after cementation was also evaluated and the results of zinc polycarboxylayte were lower than zinc phosphate cement and were statistically significant