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.
Articulation is the process by which sounds, syllables, and words are formed when your tongue, jaw, teeth, lips, and palate alter the air stream coming from the vocal folds. When an individual cannot produce or distort an age-expected sound/s, it draws attention away from the speakerâs message.