Laser treatment 'zaps bad breath'

People plagued by bad breath despite regular brushing, flossing and gargling with mouth wash could benefit from laser therapy, say scientists.

In most cases bad breath comes from the build up of bacteria around the teeth and gums due to poor oral hygiene.

But in some the tonsils are to blame, the Israeli team told New Scientist.

Treating the tonsils with a laser for 15 minutes to combat bacteria lurking in the tissue can banish these bad odours, they found.

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