a state of unconsciousness from which the patient cannot be aroused, even by powerful stimuli. Traumatic brain injuries are the most frequent cause; other causes include severe uncontrolled diabetes mellitus, liver disease, kidney disease, and neurologic conditions. Evaluation of a patient in a coma is comprehensive. The underlying cause should be identified so that appropriate treatment can be initiated.
Dental Care. A veneer is a thin shield of porcelain that is used to cover the front surface of a tooth. Veneers are designed as a permanent way to change or enhance the look of stained, chipped, broken, or undesired teeth. To get a veneer, you'll very likely need to see your dentist at least two times.
1 Porcelain (indirect) veneers, which must first be created to fit your teeth in a dental laboratory and require two visits to the dentist. Porcelain veneers cost between $900-$2,500 per tooth and last from 10 to 15 years or more.  Composite (direct) veneers, in which enamel is bonded to your tooth in a single visit.