Assertion: MTA is also used as base as it has insulating and anti-microbial characteristics; but primarily it is used as speciality material. Reason: Currently available MTA products have slow setting characteristics.
High-Yield Explanation
MTA is also used as a base because it is insulating, anti-microbial, and nonacidic. However, currently available products have slow setting characteristics. Thus, MTA is primarily a speciality material.