Rebekah Moan, contributing writer, and Theresa Pablos, editor in chief[email protected]Infection ControlCase report: Dorsal tongue ulcer in COVID-19 patientA dental team in Afghanistan identified a dorsal tongue ulcer in a 62-year-old man who later tested positive for COVID-19. The man's painful lesion persisted for weeks, and he also experienced asymptomatic geographic tongue, according to details published on May 20 in BMC Oral Health.May 25, 2021CAD/CAMImaging reveals dentition of 3.67-million-year-old skullA team of global researchers used high-resolution imaging to reveal never-before-seen dental details in a 3.67-million-year-old skull of a prehuman ancestor known as Little Foot. The images and insights were published on March 2 in e-Life.March 8, 2021Page 1 of 1Top StoriesBrainGum disease may be linked to impaired brain functionPeriodontitis may be a risk factor for brain damage, providing a potential treatment target for the early prevention of Alzheimer's disease, according to an American Academy of Periodontology press release.Invisible AlignersAI applications on the rise in clear aligner therapySmile DesignClinical tip: What you need to know about platelet-rich fibrinLegal IssuesDentist accused of trying to meet up with childSponsor ContentFree Webinar January 22 @ 8 p.m. ET