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 hard material of the tooth is composed of calcium, phosphorus, and other mineral salts. The material in the majority of the tooth is called dentine. The hard, shiny layer that you brush is called the enamel. Teeth have two basic parts, a root to anchor the tooth to the jaw and a crown above the gum line.here are 3 different layers which are different for the crown of the tooth and the root of the tooth. Crown: Enamel-The hardest substance in the human body. It is approximately 95% calcified and is primarily made up of hydroxyapatite crystals.