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).
The knowledge of the healthy tooth layers or lack there of, will help you to better understand root sensitivity. The outer chewing surface of your tooth is enamel. Enamel is naturally white in color and is the hardest substance in your body. A layer called cementum protects the tooth root under the gum. For various reasons, the gum tissues can recess or the enamel may wear away (i.e. excessive improper Brushing).