Health & Diet

Vaping Through E-Cigarettes Do Not Blemish Teeth, Says This Study

| March 25 , 2018 , 19:30 IST

A new study has suggested that vaping through e-cigarettes do not blemish our teeth. According to a research done by British American Tobacco, the smoke of cigarette can quickly discolour our teeth in a period of 2 weeks whereas, teeth exposed to e-cigarette vapour or vapour from Glo, a tobacco-heated product, do not affect our teeth.

The study revealed that after 2 weeks of almost continuous exposure to an e-cigarette, the teeth were almost similar to teeth that were not exposed to any vaping product. Smokers usually get ‘light blemishes’, which turns teeth to an unhealthy-looking yellow/brown colour from a healthy-looking white colour.

Although this is commonly referred to as nicotine staining which is not exactly the case, rather it is caused by tar in the smoke. As part of a detailed study on oral health, scientists at British American Tobacco studied discolouration in teeth. A prototype vaping e-cigarette and Glo which is a tobacco heating product, both were assessed for tooth discolouration and to compare the impact on teeth with vape smoke and cigarette smoke.

An artificial puffing robot was used to puff on the products to produce smoke and vapour. In each case, the smoke was collected on a filter pad and then a solvent was used to extract the solid material from that filter pad. The impact of the extracted material (extract) on tooth discolouration was then tested using cow’s teeth.

This incubation created a so-called pellicle layer on the teeth. This layer is a smooth film you can feel on your teeth while rubbing your tongue over your teeth. When certain molecules in saliva bond to the tooth enamel, then this normal protein layer forms on teeth.

The teeth were then incubated in an oven at body temperature and were exposed to the various extracts from the cigarette smoke or e-cig or THP vapour. Some teeth were also incubated in a solvent with no extract at all to act as a control or blank.

The teeth exposed to the smoke extract started to change colour after the very first day and over the course of 14 days, these teeth got darker in colour. Even the change in colour occurred due to the cigarette extract can be seen easily with the naked eyes after one day.

Using a special camera that can detect tiny changes in hue, the exact colour change was also measured in the laboratory. In comparison to teeth exposed to smoke those exposed to an e-cigarette or THP vapour exhibited a minimal change in colour, similar to untreated teeth.