AIM : The purpose of this in-vitro study was to compare
the sealing ability of White ProRoot® MTA, MTA PlusTM,
BiodentineTM and Permite Amalgam when used as root-end
MATERIALS AND METHODS : 120 single rooted, extracted
teeth were endodontically treated. The apical 3 mm of
each root was resected, and 3 mm deep root-end cavities
Specimens were divided into four groups (n=30) and filled
with the following materials: ProRoot® MTA, MTA PlusTM,
BiodentineTM, and Permite Amalgam. Specimens were
submerged in Indian Ink for 48 hours, and sectioned
horizontally in one millimetre increments from the apical end.
Dye penetration was measured using a stereomicroscope.
RESULTS : Data for different groups was summarised as
percentages. Pairwise comparisons between the calcium
silicate materials to amalgam were done at the 0.017
level of significance, using Fisher’s exact test. Amalgam
showed significantly more leakage than the calcium silicate
materials (ProRoot® MTA, MTA PlusTM and BiodentineTM)
(p<0.001). No significant differences in sealing ability
were found among the calcium silicate materials.
CONCLUSION : Amalgam should be regarded as unsuitable
for use as a root-end filling material. Calcium silicate cements should be recommended as the material of choice
for root-end filling.