Source:http://linkedlifedata.com/resource/umls/id/C0227011
MSH: The constricted part of the tooth at the junction of the crown and root or roots. It is often referred to as the cementoenamel junction (CEJ), the line at which the cementum covering the root of a tooth and the enamel of the tooth meet. (Jablonski, Dictionary of Dentistry, 1992, p530, p433),NCI: The area of a tooth where the enamel of the crown and the cementum of the root(s) are joined.