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A recent study suggests that e-cigarettes and tobacco products cause much less stain on teeth than conventional cigarettes. In a portion of the study conducted at British American Tobacco, scientists evaluated and compared a new electronic cigarette (EC), a tobacco heating product (THP), and a conventional cigarette for their impact on coloring. Tooth enamel. While cigarette smoke caused significant discolouration of enamel, EC vapors and THP aerosols caused only minimal staining. The findings are published in the American Journal of Dentistry.
These new generation products (NGP) do not involve combustion; the vapor and aerosols that they produce are less complex and contain levels of some toxic toxic much lower than cigarette smoke.
It is well known that smoking cigarettes causes stains on teeth that can not be easily removed by regular brushing, but these effects of PNG are poorly known. Scientists have therefore conducted in vitro color staining studies to compare the effect of a CE, THP glo BAT and a reference cigarette (3R4F).
Electronic cigarettes and tobacco products cause much less stain on teeth than conventional cigarettes
Photo credit: iStock
The tests were performed on enamel blocks cut into bovine incisors. To mimic the conditions in the mouth, the enamel blocks were first incubated with saliva to allow the formation of a film, a protective protein film that normally forms on the teeth. The enamel blocks were exposed to particles (isolated from smoke / steam) for 14 days and to all smoke / vapor (the equivalent of one). pack of cigarettes a day) for 5 days.
Enamel samples were evaluated before, during and after treatment; color readings were determined by an independent laboratory using an established method involving a commercially available spectrophotometer and qualified scientists.
The discoloration of enamel blocks exposed to cigarette smoke was apparent in just one day and continued to increase as the concentration of cigarette smoke increased. In contrast, exposure to EC or THP vapor resulted in little or no color change comparable to untreated controls.
"Many studies have postulated that it is tar in cigarette smoke that stains teeth.We now have a method that allows us to quickly assess in the laboratory the level of enamel discoloration caused by smoke. of cigarette and steam from our CE and THP ", explains Annette Dalrymple. , senior scientist at BAT R & D.
"The data generated by this study clearly show that the EC and THP assessments have resulted in minimal discoloration, which is very promising for the consumers of our PNGs, but further studies are needed to understand the benefits. long-term effect on tooth staining and oral health when smokers change color, to use NPMs, "he added.
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