Brushing the tongue when brushing your teeth has been touted as a cure for bad breath caused by bacteria that form on your tongue. This cleaning of the tongue is supposed to both improve bad breath and lessen the risk of infection in periodontal openings while reducing bacterial population. While the process seems fairly benign, there are possible side effects from brushing improperly or too harshly. A May 2003 study by the Department of Periodontology, Academic Centre for Dentistry, Amsterdam, the Netherlands reported on by Wiley Interscience concluded there was reduced coating and increased sense of taste after brushing, but only minor lessening of bacteria on the tongue surface 1. But the Vol. 134, No. 1 of the Journal of the American Dental Association states that brushing the tongue can reduce bad breath by as much as 70 percent.
Prolonging Bacterial Presence
Tongue brushing can result in pressing bacteria further into the tongue surface (filliform) rather than removing it. Brushing without scraping had little positive effect and could actually prolong the bacterial propagation and resulting bad breath according to Dr. Dan Peterson on the Family Gentle Dental website 2.
Protein Digestion and Body Odor
The gag reflex is triggered because the problematic bacteria tend to gather in the rear of the mouth where brushing is most likely to make you gag. The Bad Breath Killer website reports this is temporary and tolerated by most people.
Taste Buds Damage
Damage to the taste buds and opening the way for possible infection are side effects of brushing the tongue too vigorously or with harsh bristles. The Bad Breath Killer website advises gentle brushing or scraping of the tongue to avoid damage to its surface.
Protein Digestion and Body Odor
How to Clean a Toothbrush
Side Effects of Whitening With Carbamide Peroxide
The Effects of Chewing Gum on the Tongue
How to Remove Tooth Tartar at Home
Diseases and Disorders of the Tongue
How to Use Dental Tools at Home to Remove Plaque
The Effects of Smoking on the Tongue
The Best Ways to Water Clean Teeth
Pros & Cons of Braces
- Wiley Interscience
- Dental Gentle Care
- Williams A. Manual lymphatic drainage: exploring the history and evidence base. British Journal of Community Nursing. 2010;15(Sup3). doi:10.12968/bjcn.2010.15.sup3.47365
- Choi I, Lee S, Hong YK. The new era of the lymphatic system: No longer secondary to the blood vascular system. Cold Spring Harbor Perspectives in Medicine. 2012 Apr; 2(4): a006445. doi:10.1101/cshperspect.a006445.
- de Godoy JMP, de Godoy ACP, Godoy MFG. Considering the hypothesis of the pathophysiology of cellulite in its treatment. Dermatology Reports. 2017 Oct 16;9(2):7352. doi:10.4081/dr.2017.7352.
- de Godoy JMP, de Godoy ACP, Maria FGG. Evolution of Godoy & Godoy manual lymph drainage. Technique with linear movements. Clinics and Practice. 2017 Oct 24;7(4):1006. doi:10.4081/cp.2017.1006.
Richard Nilsen writes poetry, fiction, features and news stories in upstate New York. He was an emergency mental-health consultant for 20 years and directed a mentoring agency for a decade. Nilsen is a black-fly control technician in the Adirondack Park, where he enjoys hiking, biking and boating.