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.
A 2004 study by the Population Resource Center found that 2.2 million infants and children die each year from diarrhea, caused largely by contaminated water and food. And, according to their estimates, polluted water in Africa and India causes 1.4 million deaths each year as a result of diarrheal diseases such as cholera and dysentery.