Mouthwash Habit May Raise Blood Pressure, Experts Warn

Daily oral hygiene is essential, but some dental professionals now question the widespread use of certain mouthwash products. Dr. Mark Burhenne, a dentist with extensive experience, has raised concerns that the habit, potentially common among millions in the United States, might adversely affect cardiovascular and metabolic health. He explains that indiscriminate mouthwash use can eliminate nitrate-reducing bacteria necessary for producing nitric oxide, a key molecule for blood pressure regulation and insulin sensitivity.

Research cited by Dr. Burhenne suggests a correlation between frequent mouthwash use and adverse health outcomes. A Harvard-affiliated study indicated that individuals using mouthwash twice daily faced a significantly higher risk of developing prediabetes or diabetes. Furthermore, other studies have linked twice-daily use to an increased risk of high blood pressure and found that it could even negate the blood pressure benefits of exercise within hours.

However, other dental experts clarify that not all mouthwash use is detrimental. Dr. Niyati Arora, a prosthodontist, states that appropriate mouthwash use can contribute to good oral hygiene. She advises that strong prescription mouthwashes, like chlorhexidine, should only be used as directed by a dentist for specific conditions. For routine care, standard fluoride or betadine mouthwashes are considered safe for beneficial oral bacteria when used as needed, but brushing and flossing remain the primary methods for maintaining oral health.