Squid ink can help dentists detect gum disease

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Researchers from the University of California San Diego have found that combining squid ink with light and ultrasound works as a dental imaging method to examine patient’s gums in a non-invasive, more comprehensive and more accurate way than current methods. Dentists usually assess gum health using a thin, hook-like metal tool called a periodontal probe, which is marked with measurements and inserted between teeth and into gums to analyse whether and how much the gums have shrunk back from the teeth. This inspection of pockets, as they are known, finds healthy gums with a 1-2mm measurement, while 3mm or more…

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