Oral irrigators are electrical devices that pump water in a steady or pulsating stream to flush out food and debris in pockets between teeth, or in braces. They also are used to deliver medicine to hard-to-reach areas. For example, prescription rinses can be sprayed into gum pockets with an oral irrigator. You can also use an oral irrigator with a diluted mouthwash, which is helpful for those who have dental implants or bridges.
Given all the mixed press on hydrogen peroxide, it may be helpful to know that the human body produces hydrogen peroxide primarily in the lungs, gut and thyroid gland.  A fascinating study done in 2009 at Harvard University suggests that the presence of hydrogen peroxide actually ‘calls’ the immune system to an injury. (3)  This makes sense when you consider that hydrogen peroxide is such a biologically fundamental ‘defense’ strategy at a cellular level.
Further research I’ve done on this showed that activated charcoal can actually be helpful in changing the pH and health of the mouth, and as such is effective in avoiding cavities and killing the bad bacteria present in tooth decay and gingivitis. For this reason, I now suggest and use it as part of my remineralizing protocol for teeth, along with my remineralizing toothpaste.
Similarly to apple cider vinegar, some swear that using citrus fruits — including lemon and/or orange peels, or lemon essential oil, which contain beneficial acids — also does the trick for whitening teeth. These foods overall are very healthy, such as benefiting digestion due to regulating levels of stomach acid, but the high acid content can also eventually wear away the enamel on the teeth if used too aggressively. Like with ACV, if you use lemon or orange peel on your teeth, always rinse your mouth afterward to be on the safe side. Use the hydrogen peroxide oral rinse formula described above for best results.
One of the options on the market to whiten teeth instantly is whitening strips. However, those are expensive and they can damage your teeth because of their peroxide content. It is very fast to whiten teeth with whitening strips, but we suggest you look into our home remedies for teeth whitening. So let's discover how to whiten teeth naturally fast at home.
Perhaps the intensity of the heat in the professional whitening lights is the culprit? Or maybe your sensitivity and irritation is caused by the caustic breakdown of the carbamide peroxide formula used in tray and gel whitening methods? No matter what the source of the discomfort is, here are some facts to help guide you in making the right choice when it comes to your preferred method of whitening:
Floss your teeth regularly. Flossing at least once a day helps remove plaque from the areas between your teeth where your toothbrush can’t reach as plaque that is not removed eventually hardens into tartar and can lead to gum disease.[9] Keep in mind that flossing may cause some discomfort at first but should not be painful either. If you floss too hard, you can damage the tissue between your teeth. With daily flossing and brushing, the discomfort should ease within a week or two. It may take a while to get used to flossing but it should slowly turn into a habit. If your pain persists, talk to your dentist. The proper steps to flossing your teeth are:
As one dentist reporting for the Dentistry IQ website puts it, “It is a misnomer that whiter teeth are the same as healthy teeth, since tooth color has very little to do with the health of the tooth. The consumer perception, though, is that white teeth equal a healthy mouth, and perception is reality.” (1) Here’s the good news: Below I explain several home remedies that help naturally whiten your teeth, while also improving overall oral hygiene. The kind of toothpaste you use plus regular brushing and flossing, using baking soda , coconut oil pulling, and tooth-healthy diet can all whiten your teeth naturally — in addition to offering benefits like antibacterial and antiseptic protection. You may also want to check out the Environmental Working Group’s Skin Deep Cosmetics Database recommendations for the best kinds of toothpaste for teeth whitening. 
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