Microleakage of MTA in primary molar pulpotomies

Authors

  • J Farto University of Barcelona, Barcelona, Spain. DDS. Mc. PhD Postgraduate student
  • C Canalda Sahli University of Barcelona, Barcelona, Spain. DDS. PhD. Professor and Head of Department of Endodontics
  • JR Boj University of Barcelona, Barcelona, Spain. DDS. PhD. Professor and Head of Department of Paediatric Dentistry

DOI:

https://doi.org/10.23804/ejpd.2017.18.03.03

Keywords:

Coronal microleakage, Dye Penetration, MTA, Primary teet, Pulpotomy

Abstract

AIM: The main goal of this study was to compare the coronal microleakage of MTA and IRM®, using the dye penetration technique in primary molars. METHODS: Study design: 160 extracted primary molars (caries-free or not) were used and randomly distributed among four groups of study (n=30) and four groups of controls, two positive (n=10) and two negative (n =10). Class II type cavities were created in 140 molar crowns and 120 of those were randomly restored with IRM or MTA. A dye penetration technique was used to evaluate the coronal microleakage. One group of each restorative material and one of each positive and negative control were kept submerged in a methylene blue solution for 24 hours, and the other groups and controls were kept in the solution for 28 days. The penetration of the colouring solution was examined under the microscope in two different locations, the coronal axial wall and the proximal cavity.