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.
In the developing world, 80% diseases are water-related. The World Health Organization states that the provision of safe water alone will reduce diarrheal diseases by up to 50%. Also, as a result of pollution, the water you drink may contain heavy metals and iron rust which boiling cannot remove. These metals can hamper the mental development in children.