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Tooth discoloration induced by calcium-silicate-based pulp-capping materials.

AbstractOBJECTIVES:
The aim of this study was to evaluate tooth discoloration induced by contact with various calcium silicate-based pulp capping materials in the presence or absence of blood in vitro.
MATERIALS AND METHODS:
Eighty bovine samples were divided into six experimental groups and two control groups according to the type of material used (ProRoot [PR], Endocem [EC], or EndocemZr [ECZ]) and the presence or absence of contamination with blood. A spectrophotometer was used to calculate the color difference (ΔE) between the baseline measurement (after placement of materials) and measurements taken 1, 2, 4, and 8 weeks. The results were analyzed with repeated measures analysis of variance, Tukey's post-hoc tests and independent t-tests (P = 0.05).
RESULTS:
The PR group and EC group showed significantly higher mean values of ΔE than the negative control group after 2 weeks (P < 0.05), whereas ECZ did not. There were larger ΔE values when there was contact with blood, especially in PR and EC group (P < 0.05).
CONCLUSIONS:
ECZ which contains zirconium oxide as a radiopacifier showed less discoloration irrespective of blood contamination compared to PR and EC.
AuthorsDa-A Yun, Su-Jung Park, Seok-Ryun Lee, Kyung-San Min
JournalEuropean journal of dentistry (Eur J Dent) 2015 Apr-Jun Vol. 9 Issue 2 Pg. 165-170 ISSN: 1305-7456 [Print] Germany
PMID26038644 (Publication Type: Journal Article)

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