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.
884 million people in the world lack access to safe water supplies. More than 840,000 people die each year from water-related disease. Almost 2 in 3 people who need safe drinking water survive on less than $2 a day. In many developing countries, millions of women spend several hours a day collecting water from distant, often polluted sources. Every minute a child dies of a water-related disease.