'PAR' in PAR 20 or PAR 50 is an acronym standing for Parabolic Aluminized Reflector. This name refers to the construction of the PAR bulb. The bulb traditionally features a tungsten filament surrounded by a reflector with an aluminum coating (hence aluminized). The reflector intensifies the beam and makes it more efficient.
Toe necrosis; Toe ischemia; Amputation; Dry gangrene Abstract Toe necrosis may have vast different etiologies. These include ischemia, embolus, and others. (1) The most common etiology is ischemia. It is a reduction in blood supply to a viable tissue that can lead to susceptibility to infection and tissue death. Peripheral ischemia, which is rooted in the
Necrotizing Ulcerative Gingivitis (NUG). Necrotizing ulcerative gingivitis (NUG) is a condition affecting the gums that is caused by a bacterial infection. It is a form of periodontal (gum) disease.But unlike other forms, it typically develops quickly and causes moderate to severe pain.Necrotizing means that the condition destroys tissue.y your next visit, it is likely that the symptoms of NUG will have started to subside. Your dentist will clean the area more aggressively with a process called scaling and root planing. He or she will examine your other teeth to see if any are affected and will review your home-care instructions.