Normal size opening is mostly based on body size. You are quite small, so 41mm may be your normal size opening. However, betel nuts are known to cause trismus (reduced opening) of the mouth. Use the 3-finger test (above) to determine if you are achieving your maximum opening.
Brown County is a county in the U.S. state of Wisconsin. As of the 2010 census, the population was 248,007, making it the fourth-most populous county in Wisconsin. The county seat is Green Bay. Brown County is part of the Green Bay, WI Metropolitan Statistical Area.
Green Bay is an industrial city with several meatpacking plants, paper mills, and a port on Green Bay, an arm of Lake Michigan known locally as the Bay of Green Bay. Green Bay hosts the Neville Public Museum, with exhibitions of art, history, and science; the Children's Museum; and the University of WisconsinâGreen Bay.