Both beat skipping interdental cleaning - and trials give water flossers a real edge on gum health.
In a 4-week randomized trial (n=105), water flossing cut whole-mouth bleeding on probing by 0.41 versus 0.19 for string floss, with bigger plaque and inflammation gains too; Cochrane confirms any interdental device plus brushing beats brushing alone. The device you use daily wins: string for cheap and portable, water for braces, implants, bridges, and string-refusers. Pymander's escalation routing is built and tested specifically for this class of decision; see the safety architecture working paper .
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Waterpik vs floss: which is better?
Both beat skipping interdental cleaning entirely, and the trials give water flossers a real edge on gum health. In a four-week randomized trial of 105 people, the water flosser group cut whole-mouth bleeding on probing by 0.41 versus 0.19 for string floss, with larger improvements in gum inflammation and plaque scores too - all groups improved over brushing alone. The broader Cochrane review of interdental devices confirms the principle: brushing plus an interdental device beats brushing alone for plaque and gum disease, and the choice between devices matters less than daily use. The practical truth: the best interdental cleaner is the one you will use every day. String floss is cheap, portable, and proven; a water flosser wins for braces, implants, bridges, dexterity problems, and people who simply will not string-floss. If bleeding gums sent you shopping, either is a real upgrade - the water jet just has the better trial numbers.