Friday, 16 March 2018
Toothpaste alone does not prevent dental erosion, new research suggests.
After analysing nine fluoridated toothpastes that are available throughout Europe, including Colgate Caries Protection and Sensodyne Rapid Relief, Swiss researchers found enamel loss still occurs to some extent despite regular brushing.
Although none of the toothpastes studied prevent dental erosion, Blend-a-Med Pro Expert and Regenerate were found to be the least effective, while Sensodyne Pronamel and Elmex Erosion Protection are no better than saliva.
The researchers believe toothpastes should be used as part of an oral-care regimen alongside dentists' advice and healthy lifestyles.
Dental erosion occurs when hard tissue is lost due to acidic break down combined with abrasive brushing or tongue movements.
Continuous erosion can expose the underlying dentine, which causes people to suffer sensitivity and pain.
Professor Ana Cecília Corrêa Aranha, from the University of São Paulo, who was also involved in the study, said: 'None of these toothpastes werecapable of preventing dental erosion or dentin hypersensitivity, which is a cause of concern'.
Speaking of the importance of a complete oral-care regimen, study author Dr Samira Helena João-Souza, from the University of São Paulo, added: 'Dental erosion is multifactorial. It has to do with brushing, and above all, with diet.
'Food and drink are increasingly acidic as a result of industrial processing.'
The researchers plan to conduct a similar experiment that also measures any pain relief.
How the research was carried out
The researchers created 150 enamel samples out of premolar teeth, which were preserved until required.
Such samples were then divided into 10 groups, all of which were exposed to equal amounts of an erosive substance for five consecutive days while undergoing a process that mimicked the effects of brushing.
One group was exposed to an artificial saliva, which acted as the experiment's control.
Four of the groups were then treated with toothpastes that claim to desensitise and the remainder with supposed anti-erosive versions.
All of the toothpastes analysed have fluoride concentrations between 1,040 and 1,450 ppm.
After exposure to erosion and the toothpastes, the samples' enamel surface loss was calculated.
The results were published in the journal Scientific Reports.
Article by By Alexandra Thompson Health Reporter for MailOnline: http://www.dailymail.co.uk/health/article-5500141/Toothpaste-does-not-prevent-dental-erosion.html
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