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Original Research

Open Access

Bond Strength Analysis of Intracanal Posts used in Anterior Primary Teeth: an in vitro study

  • Sérgio Luiz Pinheiro1,*,
  • Marcelo José Strazzeri Bönecker2
  • Danilo Antonio Duarte3
  • José Carlos Pettorossi Imparato4
  • Margareth Oda PhD5

1School of Dentistry, Catholic University of Campinas (PUC), Santos Metropolitan University and Araras University

2,Pediatric Dentistry at the University Cruzeiro do Sul and University of São Paulo

3,Department of Pediatric Dentistry in University Cruzeiro do Sul

4,São Leopoldo Mandic

5,of Dentistry. University of São Paulo

DOI: 10.17796/jcpd.31.1.547tqq6574361549 Vol.31,Issue 1,January 2007 pp.32-34

Published: 01 January 2007

*Corresponding Author(s): Sérgio Luiz Pinheiro E-mail:


The purpose of this in vitro study is to assess the bond strength of three different posts used to restore primary anterior teeth. These posts were made by composite resin, 0.7mm alpha-shaped orthodontic wire and dentin posts. Thirty roots of extracted primary anterior teeth, with initial physiological resorption, were mounted in a container filled with self cured resin and were endodontically treated. Thirty posts were prepared using three different materials: 10 composite resin posts (Z100), 10 alpha-shaped orthodontic wire and 10 dentin posts. A bulk of composite resin (Z100) was made over the posts using a circular Teflon bisected strip. The specimens were stored in 37°C water solution for 24 hours before tensile bond strength tests in 0,5mm/min speed were performed (Instron model 4442 test machine- Instron Corporation). The results were submitted to the Kruskal-Wallis test and there were no significant statistical differences among the three types of posts assessed (p=0.8666). The dentin posts technique might be considered an alternative for rehabilitation in pediatric dentistry. because of the possibility of natural resorption.


Posts. Composite resin. Orthodontic wire. Dentin post. Bond strength

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Sérgio Luiz Pinheiro,Marcelo José Strazzeri Bönecker,Danilo Antonio Duarte,José Carlos Pettorossi Imparato,Margareth Oda PhD. Bond Strength Analysis of Intracanal Posts used in Anterior Primary Teeth: an in vitro study. Journal of Clinical Pediatric Dentistry. 2007. 31(1);32-34.


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