ArticleInternational journal of dentistry2026
Comparison of Tooth Discoloration Induced by Mineral Trioxide Aggregate and Polycarboxylate Cement Containing Potassium Nitrate in the Presence and Absence of Blood: An Ex Vivo Study.
Article in International journal of dentistry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Purpose: Most materials used in endodontic procedures may cause tooth discoloration. This study aimed to compare coronal tooth discoloration after application of mineral trioxide aggregate (MTA) and polycarboxylate cement containing 5 wt% potassium nitrate (PCPN) as vital pulp therapy materials in the presence and absence of blood. Methods: Sixty-eight extracted human single-rooted anterior and premolar teeth were selected, prepared, and standardized to 5 mm root length. After access cavity preparation and enlargement of canals up to Glidden drills #6, cylindrical pieces of white sponge were placed into the canals up to the cementoenamel junction. Specimens were then randomly assigned into two experimental groups ( Results: A significant interaction was observed between time and groups ( Conclusions: MTA exhibited more severe tooth discoloration than PCPN when used in the presence of blood. Both materials showed increased discoloration after 1 month.
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