People who often chew aspirin over a prolonged period could severely damage their teeth, according to a case study in this month’s issue of the Journal of the American Dental Association (JADA).
“Aspirin can cause severe damage to both the hard and soft tissues of the mouth,” said researchers from the University of Maryland Dental School, Baltimore. “Dentists should counsel and educate patients and other health care practitioners about the dangers to both hard and soft oral tissues from chewing aspirin,” they added.
The researchers presented two cases of enamel erosion attributed to daily chewing of multiple aspirin tablets on a long-term basis. In the first case, a 52-year-old woman presented herself at a facial pain center, complaining of temporomandibular joint (jaw) pain. She had avoided dental care for about 10 years and needed comprehensive dental treatment. The patient stated that she had been taking four to eight aspirin tablets a day for one to two years to relieve headaches. She typically held the aspirin tablets on the tooth surfaces and crushed them until they dissolved.
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Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.
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Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.
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Ultra-short, high-intensity X-ray flashes open the door to the foundations of chemical reactions. Free-electron lasers generate these kinds of pulses, but there is a catch: the pulses vary in duration and energy. An international research team has now presented a solution: Using a ring of 16 detectors and a circularly polarized laser beam, they can determine both factors with attosecond accuracy.
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12.07.2018 | Event News
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