Term paper. A term paper is a research paper written by students over an academic term, accounting for a large part of a grade. Term papers are generally intended to describe an event, a concept, or argue a point.
Figure 1. Crown of the tooth. The teeth are made up of two major parts: the crown and the root. The crown of the tooth is what is visible in the mouth (Figure 1). The root of the tooth is the portion which normally not visible in the mouth and is anchored within the bone (Figure 2).
Structure. The portion of a tooth that rises above the gum is the crown; the portion below is the root. The crown is covered by enamel, which is related to the epithelial tissue of the skin and is the hardest substance in the human body. The surface of the root is composed of a bonelike tissue called cementum.