Comparison of the Radiopacities of Different Root-End Filling and Repair Materials

Abstract EN

This study evaluated the radiopacity of 3 repair materials, Biodentine, MM-MTA, and MTA Angelus.

Standardized cylindrical rings were prepared.

Samples of Biodentine MM-MTA and MTA Angelus were prepared (n=10 in each group), filled into the rings, and preserved at 37°C until setting.

A 1 mm thick dentin slice was used as control.

All set specimens were removed and radiographed along with the dentine slice and a graduated aluminium step wedge.

Digital images were transferred to the computer using a software.

The radiographic densities of the specimens were determined, and the values were converted into millimetres of aluminium (mm Al).

One-way ANOVA was used for intergroup comparison, whereas Tukey HSD test was used for detecting the group with the difference.

The mean radiopacities of Biodentine, MTA Angelus, and MM-MTA were 2.8 ± 0.48, 4.72 ± 0.45, and 5.18 ± 0.51 mm Al, respectively.

The radiopacity of Biodentine was significantly lower compared to other materials (P=0.001), whereas no significant difference was noted between MTA Angelus and MM-MTA (P=0.109).

All materials had significantly higher radiopacities compared to dentine.

The relatively lower radiopacity of Biodentine can be improved to achieve more reliable results in procedures such as retrograde fillings.