What is mineral trioxide aggregate (MTA) and what is its role in pulpotomy of primary teeth?

Study for the Pediatric Dentistry II Exam. Utilize flashcards and multiple choice questions with hints and explanations. Prepare thoroughly for your exam!

Mineral trioxide aggregate is a biocompatible, hydrophilic cement used as a pulpotomy dressing. When placed over the remaining pulpal tissue after coronal pulp removal, it sets in the presence of moisture, creating a tight seal that protects the pulp from leakage. It is also bioactive, promoting dentin bridge formation and healing, which contributes to favorable long-term outcomes in primary teeth treated with pulpotomy. It is not a composite resin, a metal alloy, or an adhesive bonding agent, which is why those descriptions do not fit its identity or its role in pulpotomy.