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.
663 million people in the world â one in ten â do not have clean water. (WHO/UNICEF Joint Monitoring Programme (JMP) Report 2015) Around 315,000 children under-five die every year from diarrhoeal diseases caused by dirty water and poor sanitation. That's almost 900 children per day, or one child every two minutes.