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Tooth discoloration induced by calcium-silicate-based pulp-capping materials.
Da-A Yun1, Su-Jung Park1, Seok-Ryun Lee1
1Department of Conservative Dentistry, School of Dentistry, Wonkwang University, Iksan, Korea.
European Journal of Dentistry
|June 4, 2015
Summary
EndocemZr (ECZ) showed less tooth discoloration than ProRoot (PR) and Endocem (EC) pulp capping materials, even with blood contamination. This finding is crucial for selecting dental materials that maintain tooth aesthetics.
Area of Science:
- Dentistry
- Biomaterials Science
Background:
- Tooth discoloration is a concern with pulp capping materials.
- Calcium silicate-based materials are commonly used for pulp capping.
Purpose of the Study:
- To evaluate in vitro tooth discoloration caused by ProRoot (PR), Endocem (EC), and EndocemZr (ECZ) pulp capping materials.
- To assess the influence of blood contamination on material-induced tooth discoloration.
Main Methods:
- Eighty bovine teeth samples were used.
- Materials were placed, and color difference (ΔE) was measured using a spectrophotometer at baseline and after 1, 2, 4, and 8 weeks.
- Groups included PR, EC, ECZ, with and without blood contamination, plus control groups.
Main Results:
- PR and EC groups showed significant discoloration compared to the control after 2 weeks.
- Blood contamination increased discoloration, particularly in the PR and EC groups.
- ECZ demonstrated minimal discoloration, unaffected by blood contamination.
Conclusions:
- EndocemZr (ECZ) exhibits superior color stability compared to ProRoot (PR) and Endocem (EC).
- The inclusion of zirconium oxide in ECZ contributes to its reduced discoloration potential.
- ECZ is a promising alternative for pulp capping, minimizing aesthetic concerns related to tooth discoloration.

