European Archives of Paediatric Dentistry

, Volume 14, Issue 2, pp 65–71 | Cite as

Clinical, radiographic and histologic analysis of the effects of pulp capping materials used in pulpotomies of human primary teeth

  • T. M. OliveiraEmail author
  • A. B. S. Moretti
  • V. T. Sakai
  • N. Lourenço Neto
  • C. F. Santos
  • M. A. A. M. Machado
  • R. C. C. Abdo
Original Scientific Article



To compare the clinical, radiographic and histological responses of the pulp to mineral trioxide aggregate (MTA), calcium hydroxide (CH) and Portland cement (PC) when used as a pulpotomy agent in human primary teeth.

Study design

Forty-five mandibular primary molar teeth were randomly assigned to CH, MTA or PC groups and treated by pulpotomy technique.


The teeth were treated by conventional pulpotomy technique, differing only in the capping material for each group. Clinical and radiographic evaluations were recorded at 6-, 12- and 24-month follow-up. Teeth in the regular exfoliation period were further processed for histologic analysis.


Data were tested using parametric tests at a significance level of 5 %. The histological results were expressed descriptively.


Clinically and radiographically, the MTA and PC groups showed 100 % success rates at 6, 12 and 24 months. In CH group, several teeth presented clinical and radiographic failures detected throughout the follow-up period, and internal resorption was a frequent radiographic finding. Histologic analysis revealed the presence of dentine-like mineralised material deposition obliterating the root canal in the PC and MTA groups. CH group presented, in most of the sections, necrotic areas in the root canals.


MTA and PC may serve as effective materials for pulpotomies of primary teeth as compared to CH. Although our results are very encouraging, further studies and longer follow-up assessments are needed in order to determine the safe clinical indication of Portland cement.


Mineral trioxide aggregate Calcium hydroxide Portland cement Primary teeth Pulpotomy 


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Copyright information

© European Academy of Paediatric Dentistry 2013

Authors and Affiliations

  • T. M. Oliveira
    • 1
    Email author
  • A. B. S. Moretti
    • 2
  • V. T. Sakai
    • 2
  • N. Lourenço Neto
    • 2
  • C. F. Santos
    • 3
  • M. A. A. M. Machado
    • 1
  • R. C. C. Abdo
    • 1
  1. 1.Department of Pediatric Dentistry, Orthodontics and Public Health, Bauru School of DentistryUniversity of São PauloSão PauloBrazil
  2. 2.Department of Pediatric DentistryFederal University of AlfenasAlfenasBrazil
  3. 3.Department of Biological SciencesBauru School of Dentistry, University of São PauloSão PauloBrazil

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