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Original Research

Open Access

Dentin Microhardness of Primary Teeth Undergoing Partial Carious Removal

  • Dalpian DM1
  • Casagrande L1,*,
  • Franzon R1
  • Dutra GMC1
  • Araujo FB1

1Department of Pediatric Dentistry, Federal University of Rio Grande do Sul, Ramiro Barcelos 2492, Bom Fim, Porto Alegre, RS 90.035-003, Brazil.

DOI: 10.17796/jcpd.36.4.n404t58110t18082 Vol.36,Issue 4,July 2012 pp.363-367

Published: 01 July 2012

*Corresponding Author(s): Casagrande L E-mail: lucianocasagrande@hotmail.com luciano.casagrande@ufrgs.br

Abstract

To evaluate the dentin microhardness of primary teeth undergoing indirect pulp capping (IPC) after partial caries removal. Materials: Primary molars were treated with IPC, restored with self-etching primer (Clearfil SE Bond; CSE), and filled with composite resin (Filtek Z250) with (n = 10) or without (n = 7) a calcium hydroxide base liner (Dycal; Dy). After tooth exfoliation, the microhardness of the demineralized dentin remaining under the restoration (n = 17) was analyzed and compared with that of sound and carious primary dentin (n = 20). Microhardness measurements were obtained from the deepest portion of the cavity until the roof of the pulp chamber. Data were analyzed by Kruskal-Wallis test (p < 0.05). Results: There was no difference in microhardness values at all depths between the treated groups (DY and CSE), but when the exfoliated carious teeth were included, the CSE had significantly higher values at 35-μm depth. This difference was only detected in the DY group after a depth of 200 μm. At 700 μm, there was no difference in microhardness values between all 4 groups. Conclusions: Primary teeth that underwent IPC showed the same microhardness, regardless of the capping material used.

Keywords

Primary Tooth, Dentin Hardness, Dental Pulp Capping.

Cite and Share

Dalpian DM,Casagrande L,Franzon R,Dutra GMC,Araujo FB. Dentin Microhardness of Primary Teeth Undergoing Partial Carious Removal. Journal of Clinical Pediatric Dentistry. 2012. 36(4);363-367.

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