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.
What causes an articulation disorder? An articulation disorder may be attributed to hearing loss, neurological disorders, physical impairments such as cleft lip or palate, vocal abuse or misuse, hypotonia, oral-motor skills, or difficulty with placement of articulators. However, the cause of the disorder is often unknown.