(PR76) Applicability of the Root Canal Irrigation with the Prototype EDTA Solution

Abstract: Objectives of the study: The purpose of this study was to analyze the effects of irrigation for root canal dentin with the prototype alkaline EDTA solution prepared on resin cement adhesion to be used at the time of building the abutment after root canal filling. MATERIALS and

Methods: Bovine mandible anterior teeth were used for this study. Teeth were cut horizontally at the cervical region, then the root was split into halves in the tooth axis direction. The method for measuring the tensile bond strength test at the root canal dentine surface is follows.Test samples were sorted into three groups: the prototype EDTA solution (EDTA group); Smear Clean (SC group); and untreated (control group). Adhesive resin cement (PANAVIA V5) was applied on the sample and crimped with fingers. Afterward, a tensile bond strength test was performed by the desktop universal testing machine (EZ Test). The statistical analysis used by the One-way ANOVA and Bonferroni correction.

Results: The results showed that the most highly adhesive group was the EDTA group (21. 3), followed by the control group (18. 3), then the SC group (14. 3). Compared with the SC group, the EDTA group indicated significantly higher adhesive strength.

Discussion: Therefore, the results of this study suggested that the dentin surface after root canal cleaning with the prototype alkaline EDTA solution increased the adhesive strength of resin cement for making an abutment.