July 1st, 2008 by Mylo
What Most People Don’t Know
Ken Michener’s tooth had been hurting off and on for months, and the pain was intense one Monday night in August. So Michener, 31, of Naperville, Illinois, who worked night shifts at a company that manufactures vitamins and dietary supplements, left at 3 a.m., halfway through his shift. At home, he tossed and turned. By the next afternoon, he’d found an oral surgeon to pull his sore molar, and started taking antibiotics to beat the bacterial infection and reduce the swelling. They did neither. By Friday, Michener was still hurting, and his left cheek bulged. At a local hospital, his oral surgeon removed another tooth, drained some pus, gave him painkillers and more antibiotics, and checked him into intensive care.
By the following Monday, when Michener was rushed by ambulance to Loyola University Medical Center, in suburban Chicago, his cheek was so swollen that he couldn’t open his left eye. The infection had invaded the muscles that open the jaw, causing his jaw to clamp shut. It had also spread to Michener’s neck and was squeezing his airway. He couldn’t open his mouth, couldn’t speak and, despite a breathing tube designed to help, struggled to draw each breath.
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June 9th, 2008 by Mylo
Hockey players, rejoice! A team of University of Alberta researchers has created technology to regrow teeth–the first time scientists have been able to reform human dental tissue.
Using low-intensity pulsed ultrasound (LIPUS), Dr. Tarak El-Bialy from the Faculty of Medicine and Dentistry and Dr. Jie Chen and Dr. Ying Tsui from the Faculty of Engineering have created a miniaturized system-on-a-chip that offers a non-invasive and novel way to stimulate jaw growth and dental tissue healing.
“It’s very exciting because we have shown the results and actually have something you can touch and feel that will impact the health of people in Canada and throughout the world,” said Chen, who works out of the Department of Electrical and Computer Engineering and the National Institute for Nanotechnology.
The wireless design of the ultrasound transducer means the miniscule device will be able to fit comfortably inside a patient’s mouth while packed in biocompatible materials. The unit will be easily mounted on an orthodontic or “braces” bracket or even a plastic removable crown. The team also designed an energy sensor that will ensure the LIPUS power is reaching the target area of the teeth roots within the bone. TEC Edmonton, the U of A’s exclusive tech transfer service provider, filed the first patent recently in the U.S. Currently, the research team is finishing the system-on-a-chip and hopes to complete the miniaturized device by next year. Read the rest of this entry »