Effect of silver diamine fluoride and potassium iodide pretreatment on microleakage, penetration depth, and color changes of fissure sealants: an in vitro study

Description

Hamide Cömert and Ecem Elif Çege present a 2026 dental laboratory study on protecting young permanent teeth. Silver diamine fluoride stops early decay but stains teeth dark, so dentists ask whether adding potassium iodide, or pre-cleaning the surface, changes how fissure sealants behave afterward. The team tested protocols on sixty extracted molars with early enamel lesions.

Teeth were split into six groups mixing the fluoride treatment, iodide, a cleaning agent, and standard etching before sealing. Color, leakage, and sealant depth were measured under a confocal microscope. The fluoride groups darkened clearly beyond what patients would accept, and iodide only partly softened the stain. Leakage and penetration depth, reassuringly, did not differ between groups, so sealing quality survived the pretreatments.

Catalog record

Source: https://europepmc.org/articles/PMC13383417