Ten years ago I discovered xylitol and the positive effects it had on the health of my gums. Four years later I reported on my unintentional experiment in which I discovered that regular use of xylitol in my dental care routine kept my teeth in better shape than they had ever been.
I'm still a huge proponent of xylitol, but today I must report an important caveat: be careful to check the ingredients of any xylitol product you use.
For years I had swished pure xylitol around in my mouth before going to sleep at night—and sometimes during the day as well. That led to a huge dental health victory for me. But I was concerned that most xylitol comes from China, and I try to avoid food products from there if possible, because of their many known abuses. So I was excited to discover a North American-based source of xylitol, and even more so because they also sold xylitol mints and candies that were both more convenient and more interesting than plain xylitol.
Then the reports from my dentist started going downhill, and I was having to have crowns replaced that should have lasted for years, because of decay at the gumline. My dentist was dumbfounded, and so was I. Then I looked at the ingredients list on my xylitol candy packages. Many seemed fine—if flavorings alone caused problems, they would not be in toothpaste. But it turns out that some of the candies, particularly the fruit-flavored ones, also include citric acid.
There may be other factors that led to my dental problems, but certainly it could not have been good to be bathing my teeth in citric acid at night, particularly since I would let the candies disolve slowly in my mouth as I fell asleep, and would also reach for them in the middle of the night to calm a dry cough. After all, it's not so much the bacteria that cause dental caries, but the acid created by the bacteria.
So I'm back to using pure xylitol for my teeth, and taking care to avoid the xylitol candies and mints that contain citric acid. I share this for everyone, including my own grandchildren, who chew xylitol mints as part of their nightly routine, because their dentists have recognized the value of xylitol for dental health. It's still a great idea—but have a care for the other ingredients.