Does potassium iodide application following silver diamine fluoride reduce staining of tooth? A systematic review

source extracted confidence: high 2026-04-09
#cariostatic-agents #dental-caries #fluorides-topical #humans #potassium-iodide

Does potassium iodide application following silver diamine fluoride reduce staining of tooth? A systematic review

Roberts et al., 2020 | Aust Dent J | Systematic Review

Citation

Roberts A, Bradley J, ... Sharma D. Does potassium iodide application following silver diamine fluoride reduce staining of tooth? A systematic review. Aust Dent J. 2020-Jun;65(2):109-117. doi:10.1111/adj.12743

Abstract

OBJECTIVES: To assess if using potassium iodide (KI) immediately after application of silver diamine fluoride (SDF) significantly reduces the staining of tooth structure. DATA SOURCE AND SELECTION: Four online databases (OVID, Scopus, PubMed and Google Scholar) were searched (June 2019). Additional studies were sought through grey literature search and hand searching the reference list of included articles. All studies that analysed the effect of KI on SDF staining of tooth structure with access to full text in English language were included. DATA SYNTHESIS: Of the six articles included in the review, five reported stain reduction in the teeth treated with application of KI to carious tooth structure following the application of SDF while one article reported no significant beneficial effect on reducing staining, when compared to SDF alone. Of the materials selected to restore SDF + KI treated teeth, resin-modified glass ionomer was found to produce the lightest results, followed by glass ionomer cement and composite resin. An in vivo case report also revealed some staining after six months, even with SDF + KI treatment. CONCLUSIONS: Although some studies reported a positive effect, insufficient evidence exists supporting a tangible clinical benefit of SDF + KI treatment on the tooth staining, mainly due to methodical variations within the current literature.

Key Findings

Although some studies reported a positive effect, insufficient evidence exists supporting a tangible clinical benefit of SDF + KI treatment on the tooth staining, mainly due to methodical variations within the current literature.

Outcomes Measured

  • Requires manual extraction

Population

Field Value
Population See abstract
Sample Size See abstract
Age Range See abstract
Condition See abstract

MeSH Terms

  • Cariostatic Agents
  • Dental Caries
  • Fluorides, Topical
  • Humans
  • Potassium Iodide
  • Quaternary Ammonium Compounds
  • Silver Compounds
  • Staining and Labeling

Evidence Classification

  • Level: Systematic Review
  • Publication Types: Journal Article, Systematic Review
  • Vertical: potassium

Provenance

Source extracted via PubMed E-utilities API on 2026-04-09