A new survey of recreational scuba divers finds that 41 percent report dental problems related to diving
. Most of the problems had to do with pain from the increased pressure underwater or from clutching the air regulator too tightly in their mouths, but a few people experienced loosened crowns or cracked fillings. Dr. Ryne Johnson
, prosthodontist and managing partner of Newton Wellesley Dental Partners
reports that, “over my 30 years in clinical practice, I have seen numerous patient who presented with broken or shifted teeth induced by long-time use of a regulator”. He further recommends, “The survey was limited, but suggests that people should make sure their teeth are in good shape before they go deep. An unhealthy tooth underwater would be much more obvious than on the surface. One hundred feet underwater is the last place you want to be with a fractured tooth."
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.
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Original article: http://www.livescience.com