A reduced overbite can often result in no incisal contact at all producing an âAnterior Openbiteâ this may be the result of a soft tissue interface or Skeletal discrepancy. An increased overbite is where the lower incisors bite on the palatal gingivae (gums) or mucosa.
The Region: The Sahel region is an eco-climate zone located on the southern edge of the Sahara desert. The region spans across Nigeria, Sudan, Senegal, Mauritania, Mali, Burkina Faso, Niger, and Chad (Ethiopia and Somalia are sometimes included in the Sahel region). The name, Sahel, comes from the Arabic work for âborderâ or âmarginâ.
| Environment, Gambia, Mali, Mauritania, Senegal. Food and water shortages have left a trail of death and destruction in the Sahel [Reuters]. Between the vast Sahara Desert and the dense foliage of the African Rainforest is a band of semi-arid grassland.Known as the Sahel, this hardy landscape is one of Africa's most productive crop regions.But the crops in the Sahel are grown close to their limits of tolerance, and rely on natural rainfall.ood and water shortages have left a trail of death and destruction in the Sahel [Reuters]. Between the vast Sahara Desert and the dense foliage of the African Rainforest is a band of semi-arid grassland.