Dental General b9f6c3a3 Dakin's solution is A 0.5% NaOCl B 2.5% NaOCl C 1.25% NaOCl D 5.2% NaOCl High-Yield Explanation NaOCl as a buffered 0.5% solution was recommended for irrigation of wound during world war I by Dakin. Coolidge introduced NaoCl to endodontics.