Crossword clues for the word: FLUORIDE The word FLUORIDE has appeared as an answer to at least 8 crossword clues on different crossword puzzles. Crossword clues for FLUORIDE Showing 1 to 8 of 8 results Clue(s) Aquafresh additive Controversial compound. Crest component Enamel strengthener Mouthwash ingredient Protector of some canines Tooth-saving compound? Toothpaste chemical