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).
All tooth enamel is covered with pellicles. The natural development of a pellicle provides a way for bacteria to latch onto teeth. All tooth surfaces are covered with pellicles. Pellicles, which can be polished off by a dentist, are considered the base on which plaque forms.