Valplast is a flexible denture base resin that has been used in dentistry since 1954 and is ideal for partial dentures and unilateral restorations. The resin is a biocompatible nylon thermoplastic with unique physical and aesthetic properties that provides unlimited design versatility and eliminates the concern about acrylic allergies. It allows your patient's natural tissue tone to appear through the material, matching the basic shade categories (medium, light pink, and meharry). Patient's report that it feels more comfortable because of the thinness and light weight. It is also guaranteed for life against breakage when fabricated and handled according to the manufacturer's specified procedures.
The Valplast Nesbit is ideal for posterior single tooth replacement and the Valplast Flipper is ideal for anterior single tooth replacement. The design of the new flexible plastic framework takes the danger out of an accidental swallowing of the appliance. In the event that someone did swallow one, it is unlikely that any damage could be done to the lining of the digestive system.
Researchers at the University of Virginia Health System have discovered troubling side effects of N-acetylcysteine (NAC), a common antioxidant used in nutritional and bodybuilding supplements.
NAC can form a red blood cell-derived molecule called nitrosothiol that fools your body into thinking thereís an oxygen shortage, which can lead to pulmonary arterial hypertension (PAH).
PAH is a serious condition, where the arteries in the lungs narrow, increasing the blood pressure in your lungs, causing the right side of your heart to swell.
Lead researcher Dr. Ben Gaston, noted that this is an entirely new understanding of how oxygen is sensed by the body. As it turns out, your body responds to the nitrosothiols, which are created when a decreased amount of oxygen is carried by red blood cells -- not to the amount of oxygen dissolved in the blood.
So far, studies have only been performed on mice. The next step is to determine the threshold at which the antioxidant becomes detrimental to heart and lung function in humans.
Journal of Clinical Investigation September, 2007; 117(9):2592-601 (Free Full Text Report)
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