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1. Previous Forsyth research had shown that as many as 700 different types of oral bacteria may be found in dental plaque. While some bacteria appear to be benign or even helpful, others may invade and destroy gum tissue and bone leading to loss of teeth, and, possibly, to infection elsewhere in the body. Snow whitening They found that blue light at 480nm rapidly killed BPB in pure cultures and that it selectively eliminated BPB in plaque samples containing 500-600 different bacteria. Teeth whitening They also found that certain species were more readily inactivated by the light than others and that varying the intensity and exposure time had different impacts on different species. The researchers conclude that intraoral light exposure can selectively reduce pathogens in dental plaque. The findings could lead to new methods for preventing or controlling periodontal disease. Such methods would be rapid, non-invasive, and nontoxic, Soukos said. Teeth whitening kit One product that light therapy might replace is the breath mint. Black-pigmented bacteria are also to blame for halitosis, and light therapy gets at its root cause by killing the bacteria, rather than simply masking their odor as mints and mouthwashes do. Bacteria that cause periodontal disease transport hemoglobin into their bodies...Light directed at these bacteria is absorbed by the porphyrin and, through a chemical reaction, produces substances that are toxic within the bacterial cell. Contact Details: Website URL: https://www.envismile.com/shipping-returns