ArticleMedical science monitor : international medical journal of experimental and clinical research2025
Comparative Spectrophotometric Assessment of Crown Discoloration from Diverse Endodontic Sealers.
Article in Medical science monitor : international medical journal of experimental and clinical research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND Crown discoloration is a significant aesthetic concern in endodontics, particularly following the use of obturation sealers. Using spectrophotometric analysis, this study evaluated the extent of discoloration caused by 4 types of sealers: mineral trioxide aggregate (MTA)-based, zinc oxide eugenol (ZnOE)-based, calcium hydroxide (Ca(OH)2)-based, and resin-based sealers. MATERIAL AND METHODS We randomly divided 75 extracted maxillary central incisors into 5 groups: 4 experimental groups and 1 control group. Standardized endodontic treatment was performed, with the respective sealers placed according to the manufacturer's instructions. Coronal discoloration was measured using a spectrophotometer at baseline, immediately after treatment, and at 1 and 6 months. Chromatic parameters (CIE L*, a*, b*) and total color difference (ΔE) were analyzed. Statistical analysis included repeated-measures ANOVA and post hoc tests. RESULTS All sealers caused significant crown discoloration over time. The MTA-based sealer exhibited the least discoloration, while ZnOE-based sealers had the highest ΔE values. Significant changes were noted in chromatic parameters across materials and time. ΔL (lightness change) ranged from 1.53±1.67 for MTA to 4.06±1.96 for Resin-based sealers at baseline to immediately after treatment. Resin-based sealers had the highest mean change (2.18±2.40) in Δb. For ΔE, significant differences were found between materials, with Ca(OH)₂ showing the highest mean change (5.04±2.59). CONCLUSIONS Endodontic sealers can induce varying degrees of crown discoloration, with ZnOE-based sealer causing the most significant changes. Clinicians should consider the aesthetic impact of sealer selection, particularly for anterior teeth.
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