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.
Diarrhoea. 1.8 million people die every year from diarrhoeal diseases (including cholera); 90% are children under 5, mostly in developing countries. 88% of diarrhoeal disease is attributed to unsafe water supply, inadequate sanitation and hygiene. Improved water supply reduces diarrhoea morbidity by between 6% to 25%, if severe outcomes are included.