Using mouthwash that kills mouth bacteria raises blood pressure during both day and night, with bigger increases during the day.
Scientific Claim
Antiseptic mouthwash use affects both daytime and nighttime blood pressure in healthy young adults, with daytime systolic and diastolic blood pressure increasing by 2.9 mmHg and 3.0 mmHg respectively, and nighttime systolic blood pressure increasing by 2.2 mmHg.
Original Statement
“Separation of ABPM data into daytime and nighttime means demonstrates that daytime ambulatory SBP and DBP were increased post-mouthwash (ΔSBP 2.9 ± 0.9 mm Hg, p = 0.004, and ΔDBP 3.0 ± 0.8 mm Hg, p = 0.002, respectively, Figs. 5A and B), whereas mouthwash increased only nighttime SBP (ΔSBP 2.2 ± 0.9, p = 0.022) and not DBP (Figs. 5C and D).”
Evidence Quality Assessment
Claim Status
appropriately stated
Study Design Support
Design supports claim
Appropriate Language Strength
association
Can only show association/correlation
Assessment Explanation
The study design supports quantitative association claims. The language 'affects' appropriately reflects the observed changes without implying causation.
More Accurate Statement
“Antiseptic mouthwash use is associated with increases in both daytime and nighttime blood pressure in healthy young adults, with daytime systolic and diastolic blood pressure increasing by 2.9 mmHg and 3.0 mmHg respectively, and nighttime systolic blood pressure increasing by 2.2 mmHg.”
Evidence from Studies
Supporting (1)
Physiological role for nitrate-reducing oral bacteria in blood pressure control