Introduction: Various kinds of dye infiltration protocols for the inspection of microleakage in composite and ceramic restorations have been described in the literature.
Aim: The aim of this article is to briefly present the different staining methods used to inspect microleakage in composite and ceramic restorations.
Materials and Methods: This review includes articles searched without date restriction in the Medline/PubMed database. A variety of keywords and their combinations were used: “microleakage”, “staining methods”, “ceramic restorations”, “fuchsine”, “methylene blue”, “silver nitrate”, “composite restorations”, “dye infiltration”.
Results: The review was based upon 71 references. The literature provided information regarding the different staining protocols used for the inspection of microleakage in composite and ceramic restorations.
Conclusion: Numerous types of protocols have been reported. The most common staining agents used for research purposes are fuchsine, methylene blue, and silver nitrate. In order to make the results between different experimental studies comparable, it will be beneficial to have standardized methodologies.
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