Nelson Rolihlahla Mandela was the first South  African president to be elected in a fully representative  democratic election in 1994. He was also the first non-European  pâ¦resident of South Africa.     He was born 18 July 1918 in South Africa.
Semi-adjustable articulator with mounted casts. An articulator is a mechanical device used in dentistry to which casts of the maxillary (upper) and mandibular (lower) teeth are fixed, reproducing recorded positions of the mandible in relation to the maxilla.
Joints permit varying degrees of movements. Joints are classified into three groups: immovable, slightly movable and freely movable. Arthroscopy is the science concerned with the study of joints or articulations. The articulations of the body are classified into three areas: