Coronal Staining Potential of "ERRMF ", "Biodentine" and "WMTA" Used for Direct Pulp Capping -A Comparative in Vitro Study-

Abstract

Background & Objective:: White mineral trioxide aggregate (WMTA) has been reported to cause dental discoloration. It is postulated that the discoloration is a result of chemical interaction of bismuth oxide with dentin. (Biodentine) and EndoSequence Root Repair Material fast set putty (ERRMF) have been developed to overcome the shortcomings of (WMTA). The purpose of this study was to compare the discoloration potential of    (ERRMF; Brasseler), (Biodentine, Septodont),  and (ProRoot MTA, Dentsply) when placed coronally in human extracted teeth over a 6-month period.

Materials & Methods: In total, 51 human anterior teeth were sectioned 1mm below the cementoenamel junction. The specimens were randomly assigned to four groups: ERRMF (n=15), Biodentine  (n=15), WMTA  (n=15), and  restored with composite alone (control, n=6). Tooth color was measured at five time points: after material placement, after 2weeks, 1month, 3months, 6month, and color difference values rE were calculated by using VITA Easyshade® Advance 4.0. Statistical analysis was performed using one-way ANOVA & Bonferroni tests to compare the color changes (P<0.05) using SPSS v16.0 software.

Results: The color change rE of ERRMF and Biodentine was significantly less than that of WMTA. The rE did not differ significantly between the ERRMF and control group.  Biodentine group exhibited a significantly higher rE compared with the control group. Tooth color change in all experimental groups increased over time.

Conclusions: The ERRMF and control group specimens exhibited color stability over a 6-month period, ERRMF and Biodentine exhibited less tooth discoloration than WMTA.  Therefore, WMTA should be used with caution, especially in the aesthetic zone, and ERRMF may be used as an alternative material.