In 1828, Dieffenbach enhanced the surgical treatment of cleft palate by introducing hard palatal mucosa elevation to allow the closure of hard palatal cleft. von Langenbeck (1859) proposed the creation of a bipedicle mucoperiosteal flap that can be mobilized medially to close the palatal cleft.
In fact, over 2 million deaths occur each year from water-related diarrhea alone. At any given time, almost half of the people in developing countries suffer from water-related diseases.â â¢ WHO World Health Report 1999. Statistical Annex. Totals of 2.3 million excluding several water-related diseases.
Learn more about waterborne diseases: http://www.cdc.gov/healthywater/disease/index.html. Today, almost 900 million people do not. have access to safe drinking waterâabout. one in every eight people. The global. consumption of water is doubling every. twenty years, twice the rate of population. growth, and it is estimated that in 2025, at. least 3 billion people will be living in areas.