Rows in the table - periods. Elements in the same horizontal row are said to be in the same period. The periods are numbered from top to bottom. The period number is the same as the number of electron shells that are occupied. Now try a Test Bite - foundation.
Open Bite. Inadequate vertical overlap of the front teeth characterizes an open bite. It is caused by oral habits such as tongue thrust, digit sucking, or jaws that donât grow evenly. Timing of treatment is critical to the overall success of the therapy. Open bite should be corrected because it can: Cause premature wear of the back teeth.
Open Head Injury. Open head injuries can be very scary and can sometimes appear worse than they actually are. Since an open head injury refers to a trauma to the head where the skull gets punctured, not unlike any other puncture wound, the victim may be covered in blood and it may be difficult to locate the precise location of the wound.