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s2smodern

A study by scientists at British American Tobacco has shown that e-cigarettes and tobacco heating products cause significantly less staining to teeth than conventional cigarettes.

"Many studies have postulated that it is the tar in cigarette smoke that stains teeth. We now have a method where we can rapidly assess in the laboratory the level of enamel discoloration by cigarette smoke and vapour from our ECs and THPs," explains Annette Dalrymple, a senior scientist at BAT R&D.