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).
No. Teeth can crack in several different ways: 1  Cracked tooth: This is when a crack runs from the biting surface of the tooth down towards the root. 2  Craze lines: These are tiny cracks that affect only the outer enamel of the tooth. 3  Cracked cusp: The cusp is the pointed part of the biting surface of the tooth.