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.
Environmental Impact. Water Shortages. Roughly 26 billion gallons of water are used each day in the United States, about 6 billion gallons of which go to operate toilets. Household water consumption has a significant impact on aquatic life, especially when water supplies come from freshwater lakes and streams.