“Between now and 2015 there will be an extra 400m toilets,” notes Keith Weed, head of home-care and hygiene at Unilever, with enthusiasm: “The more toilets, the more surfaces that need cleaning.”

Keith Weed,联合利华家庭护理与卫生的首席长官充满激情的说：“从现在到2015年，将会产生4亿个厕所。厕所越多，需要清理的表面就越多”。

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Effective treatment requires professional care followed by stepped up oral hygiene at home.

CNN: Gingivitis