Baking soda (bicarbonate of soda) is a handy cleaning product that is mildly abrasive in solution and is excellent for dissolving grease and molds. It can also be used as a powder to absorb musty odors. For these reasons, baking soda is great in the laundry or for cleaning the refrigerator and the powder can take bad smells from musty old books. It’s easy to be a fan of such a versatile product but be cautious before you join the craze to use baking soda on your gums and teeth. The ADA seems blissful in their recent relationship with Arm and Hammer, running ads for home and professional toothpastes in every journal – but is everyone happy with results from baking soda products?
When gum disease was first recognized as a dental problem, the suggested treatment was to cut the gums and reduce the depth of pockets around teeth. Dentists did not know this was an infection but believed poor brushing was the cause. They cut the gums to less than 4 mm (the length of a toothbrush bristle) assuming the toothbrush would now reach the bottom of the pocket. In the 1970s there was uproar when someone suggested a different approach and that bacteria were to blame for gum pockets.
In 1978 a dentist called Paul Keyes, working at the National Institute of Dental Research, caused this controversy when he used a special microscope to diagnose periodontal disease, identifying germs in gum pockets and suggesting the revolutionary idea of “non-surgical” treatment. Dr. Keyes used a mixture of baking soda and hydrogen peroxide, followed by systemic antibiotics. Even Keyes describes sensitivity following his treatment and suggested fluoride may help.
A mixture of baking soda and peroxide had been used fifty years previously to treat ANUG, an ulcerative gum infection in the teeth of veterans living in the trenches of WWI. This mixture appeared to kill aggressive spirochete bacteria, allowing the gums to heal. Obviously baking soda may be a useful emergency treatment, but beware if you have sensitivity, enamel erosion, or gum recession after using it. Also be aware peroxide can release mercury from silver fillings, and both products may cause the edges of fillings to deteriorate.
What’s the Risk?
Over many years as a clinician I noticed baking soda connected with sensitivity, erosion, and gum recession – particularly in women with poor saliva or on mouth-drying medications. My hypothesis is that baking soda may damage the protein layer that protects teeth and gums from mechanical, thermal, and chemical assault. This layer is also important for attracting minerals to teeth, so its loss would cause sensitivity. I never recommend “sensitive” toothpastes because they are a panacea and not a solution, and I often wonder if there is some link between baking soda and the makers of these toothpastes!
For a clean mouth I’d suggest you explore my Complete Mouth Care System and cultivate protective mouth conditions. I recommend patients use digestive probiotics because I believe it is impossible to enjoy mouth health without a healthy digestion. Oral probiotics may seem a good idea, but many contain artificial sweeteners like Splenda, that can damage gut health and even promote acid reflux. If you want an oral probiotic, I recommend Garden of Life Probiotic Smile lozenges, which contain strains of Streptococcus uberis KJ2, S.oralis KJ3 and S.rattus JH145, plus xylitol to feed probiotic bacteria. This product claims to safely whiten teeth because these probiotics produce a kind of hydrogen peroxide that comfortably and naturally whitens teeth, without the harsh and damaging chemicals found in other whitening products.
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