Posts Tagged ‘dentist newton’
Barodontalgia is a toothache caused by the increase in pressure felt underwater (it can also happen at high altitudes because of low pressure). The condition, which occurs while the person is in the high- or low-pressure environment, is most common in people who have some sort of underlying dental condition, like a cavity or poorly completed filling.
Forty-one percent of respondents of a recent study said they'd experienced dental symptoms while diving. Of those, 42 percent said they'd had barodontalgia. The second-most common symptom was pain from holding the air regulator too tightly (24 percent of those who'd had a dental symptom), and the third-most common problem was jaw pain (22 percent of those who'd had a dental symptom).
Protecting your teeth
Several people reported that a dental crown — a cap that fits over a broken or damaged tooth — had loosened during a dive. One person reported a broken filling. The dry air and awkward position of the jaw while clenching down on the regulator is an interesting mix. Dive instructors reported more pain and problems than casual divers. Instructors spend more time at shallower diving depths, where the changes in pressure are most abrupt.
Divers are required to meet a standard of medical fitness before certification, but there are no dental health prerequisites," according to Dr. Johnson. In the meantime, divers can protect themselves by visiting the dentist before scuba diving to check for decay and other problems.
Original article: http://www.livescience.com Artwork: www.scubadiving.com
Dr. Ryne Johnson, prosthodontist and managing partner at Newton Wellesley Dental Partners has been treating teeth grinding and TMJ therapy for over thirty years. “Many people grind their teeth at night and we used custom-made, hard appliances (with a softer, resilient liner) to lessen the impact of this significant force” says Johnson. “The night guard is designed to absorb the impact and spread the force out over all the teeth instead of allowing it to wear away the enamel”.
What the doctor says: 'If you suspect that you are suffering from Bruxism, it is important to see your dentist who can provide a proper diagnosis”.
“Your dentist will recommend a guard specially made for your teeth to create a protective barrier from friction to prevent increased tooth wear and reduce discomfort of the jaw muscles.”
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The technology doesn't require any special capture equipment outside of the initial scans (the camera on your phone will do). Also, you don't have to purposefully bare your teeth: it can work with the incomplete information from a smile or grimace. A movie crew could generate models based on a brief, natural motion capture session.
This being Disney, the most obvious use is for digital actor models in animated movies and video games. You could see uncannily realistic characters whose details pass muster even in close-up shots. However, there are plenty of medical uses as well. The scientists see dentists using the tech to previsualize a patient's mouth before they sit in the operating chair, and it's easy to imagine this leading to more authentic-looking dentures. As silly as the notion of accurately rendered teeth may be, they could be important for your well-being.
Dr. Johnson feels that this new technology will help the film and media production companies but will not be incorporated into a dental office any time soon. However, he reminds everyone that, “digital dentistry is here and should be a part of your dental reconstructive and implant work”.
Original article: www.engadget.com Artwork: Chenglei Wu, Derek Bradley et. al.