Comparative Evaluation of Chlorhexidine, Citric Acid, and Sodium Chloride Solutions for Toothbrush Decontamination: A Pilot Exploratory Interventional Study.

Researchers compared three solutions for decontaminating toothbrushes: chlorhexidine, citric acid, and sodium chloride. Citric acid reduced bacterial colonies as effectively as chlorhexidine (both 99.9% reduction), while sodium chloride was far less effective.

A plain-English summary of the study's own findings — we don't add our own claims or interpretation. Read the full paper for the complete methods and results, and apply your own clinical judgement.