The oral hygiene trend of tongue scraping may improve hygiene and reduce bad breath — but overdoing it could harm heart health by disrupting good bacteria and raising blood pressure risk.

A dental expert is sounding the alarm over a viral oral hygiene trend that could be doing more harm than good.

Too much plaque on your tongue can also alter ... Before or after brushing your teeth, place the scraper on the back of the tongue and move it forward. Scrape several times in different directions ...