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Original Research

Open Access

Multiple Teeth Fractures in Dentinogenesis Imperfecta: A Case Report

  • Min B1
  • Song J S1
  • Lee J H1
  • Choi B J1
  • Kim K M1
  • Kim S O1,*,

1e College of Dentistry, Yonsei University, Seoul, Korea.

DOI: 10.17796/jcpd.38.4.q523456j733642r2 Vol.38,Issue 4,July 2014 pp.362-365

Published: 01 July 2014

*Corresponding Author(s): Kim S O E-mail: KSODDS@yuhs.ac

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Abstract

Dentinogenesis imperfecta (DGI) is a hereditary defect consisting of opalescent teeth composed of irregularly formed and hypomineralized dentin. This paper presents the multiple fractures of DGI-affected teeth and suggests the reason of low fracture resistance by observing the dentin microstructures directly using scanning electron microscope (SEM) and by measuring its surface hardness using the Vickers hardness test. . SEM revealed that while the enamel microstructure was similar in the DGI-affected and normal teeth, the microstructure of the DGI-affected dentin was poorly woven and more loosely packed than that of the normal dentin. The Vickers hardness of the DGI-affected dentin was 4.89 times softer than the normal dentin. The low fracture resistance of DGI-affected teeth can be attributed to the poorly woven microstructure of their dentin, which leads to a reduction in hardness.

Keywords

Dentinogenesis imperfecta, Teeth fractures, Scanning electron microscope, Vickers hardness test, children.

Cite and Share

Min B,Song J S,Lee J H,Choi B J,Kim K M,Kim S O. Multiple Teeth Fractures in Dentinogenesis Imperfecta: A Case Report. Journal of Clinical Pediatric Dentistry. 2014. 38(4);362-365.

URL:

https://www.jocpd.com/articles/10.17796/jcpd.38.4.q523456j733642r2

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