Consuming green vegetables is the best way to stay healthy and the current trend for green smoothies can be called a great help too, but it could dull your smile as it stains teeth.
The colour in foods comes from chromogens, highly pigmented molecules which easily adhere to tooth enamel, reports femalefirst.co.uk.
The staining action is increased if food high in chromogens are combined with tannins, found in citrus foods and legumes as well as tea and coffee, as tannins boost chromogens’ ability to stick to the enamel.
However, you don’t have to sacrifice your morning green boost to keep your teeth gleaming. One just needs to keep in mind a few steps to take care of teeth soon after having green smoothies.
* To further prevent staining, drink your smoothie through a straw, minimising contact with teeth.
E-cigarettes and tobacco heating products cause significantly less staining to teeth than conventional cigarettes, a new study has found.
While cigarette smoke caused significant enamel discolouration, vapour from the e-cigarettes and aerosol from the tobacco heating products caused only minimal staining.
These next generation products do not involve combustion; the vapour and aerosol they produce are less complex and contain significantly lower levels of certain toxicants compared to cigarette smoke.
“Many studies have postulated that it is the tar in cigarette smoke that stains teeth,” said Annette Dalrymple, senior scientist at British American Tobacco in the UK.
“The study clearly shows that the e-cigarettes and tobacco heating products assessed caused minimal discolouration — very promising for consumers. However, further studies are required to understand the long-term effect on teeth staining and oral health when smokers switch to using next generation products,” Dalrymple added.
For the study, published in the journal American Journal of Dentistry, the team assessed and compared an e-cigarette, a tobacco heating product and a conventional cigarette for their impact on teeth enamel staining.
They assessed in the laboratory the level of enamel discoloration by cigarette smoke and vapour from e-cigarettes and tobacco heating products.
Tests were carried out on enamel blocks cut from bovine incisors — substitute for human teeth in dental research.
The enamel blocks were exposed to the particulate matter (isolated from the smoke/vapour) for 14 days and then whole smoke/vapour for five days.
The enamel samples were assessed before, during and after treatment and colour readings were determined using an established method involving spectrophotometer and trained scientists.