Sunday January 19, 2020

E-cigarettes May Not Stain Teeth, says Study

Conversely, exposure to vapour from the e-cigarettes or tobacco heating products resulted in little or no colour change that was comparable to the untreated controls

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Vaping, teeth,e-cigarette, cigarettes
Nicotine vaping on rise among US teenagers: Survey. Pixabay

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.

e-cigarettes
In this April 11, 2018, photo, an unidentified 15-year-old high school student uses a vaping device near the school’s campus in Cambridge, Mass. Health and education officials across the country are raising alarms over wide underage use of e-cigarettes and other vaping products. The devices heat liquid into an inhalable vapor that’s sold in sugary flavors like mango and mint — and often with the addictive drug nicotine. VOA

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.

e-Cigarette
e-Cigarette, Pixabay

The enamel samples were assessed before, during and after treatment and colour readings were determined using an established method involving spectrophotometer and trained scientists.

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Discolouration of enamel blocks exposed to cigarette smoke was apparent in as little as one day and continued to increase as the concentration of cigarette smoke increased, the findings revealed.

Conversely, exposure to vapour from the e-cigarettes or tobacco heating products resulted in little or no colour change that was comparable to the untreated controls. (IANS)

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Here’s how Vaping Can Increase the Risk of Asthma and COPD

Vaping increases risk of asthma and COPD says a study

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COPD smoking
Inhaling heated tobacco vapor through e-cigarettes increases chances of asthma and chronic obstructive pulmonary disease (COPD). Pixabay

Inhaling heated tobacco vapor through e-cigarettes increases chances of asthma and chronic obstructive pulmonary disease (COPD), conditions long shown to be caused by smoking traditional, combustible cigarettes.

The research data, published in the American Journal of Preventive Medicine, also suggest chances of developing COPD may be around six times greater among people who vape as well as smoke tobacco regularly, compared with those who don’t use any tobacco products.

“Although e-cigarettes may turn out to be safer than traditional combustible cigarettes, our studies add to growing evidence that they carry health risks,” said researcher Michael Blaha from Johns Hopkins University in the US.

Cases of asthma and COPD are rising worldwide, according to the World Health Organisation (WHO), with most cases of COPD resulting from traditional cigarettes.

Asthma COPD
Cases of asthma and COPD are rising worldwide, according to the World Health Organisation (WHO). Pixabay

To shed light on the risk, the researchers used national survey data gathered by the Behavioural Risk Factor Surveillance System in 2016-17.

In the analysis, published in BMC Pulmonary Medicine, the investigators analysed data from 402,822 people who identified themselves as never smokers — those who smoked less than 100 combustible cigarettes in their lifetimes.

Of these, 3,103 reported using e-cigarettes or vaping, and 34,074 people reported having asthma. Almost 11 per cent of e-cigarette users reported asthma compared with eight per cent of those who had never used e-cigarettes.

The people who reported to be e-cigarette users were 39 per cent more likely to self-report asthma compared with those who said they never used e-cigarettes.

Those who said they used e-cigarettes some days were 31 per cent more likely, and daily users 73 per cent more likely to report asthma, compared with non-e-cigarette users.

For the study published in the American Journal of Preventive Medicine, the researchers analysed the same data from all the questioned participants.

Of the 700,000 plus participants, 61 per cent reported being never smokers, nine per cent current smokers, 30 per cent former smokers, more than three per cent e-cigarette users and two per cent used both e-cigarette and traditional cigarettes.

Of the e-cigarette users, about 11 per cent said they had chronic bronchitis, emphysema or COPD, compared with 5.6 per cent who said they never used e-cigarettes.

Also Read- Know About the Adverse Health Effects of E-Cigarettes

Among never smokers, e-cigarette users were 75 per cent more likely to report COPD, compared with those who had never used them.

For both studies, the researchers cautioned that they weren’t designed to show that vaping directly causes lung disease, but only whether doing so was associated with an increased likelihood of having disease. (IANS)