Tooth Anatomy

To understand the basics of dental science, it is important to understand the anatomy of a tooth. Teeth are commonly divided into four main parts; the crown, the root, the periodontal ligament and the cementum. The crown is the visible portion of the tooth, situated above the gum line, and is usually referred to as the enamel. It is the hardest tissue in the human body and shields the tooth from wear and tear. Underneath the crown is the dentin, which is a softer tissue that is connected to the enamel. The root is the part of the tooth anchored in the jawbone, and it is usually covered in cementum, which is a hard covering that helps hold the root in place. The periodontal ligament is a soft collection of fibers that connect the root to the bony socket of the jawbone, allowing for the movement of the tooth. The interior of the tooth is filled with a variety of soft tissues and nerves, including the pulp chamber, which contains a bundle of nerves and vessels that connect to the root. The pulp is responsible for providing nutrients and nerve signals to the tooth and is the reason why cavities cause pain. All teeth have deep grooves and indentations known as pits and fissures, which can easily collect and absorb food and plaque but can be difficult to clean. This is why it is important to floss and brush your teeth at least twice a day. By having a basic understanding of tooth anatomy, you can better understand the importance of proper dental hygiene. It is important to brush and floss regularly, as well as to visit your dentist for regular checkups. By doing this, you can help protect your teeth from damage and decay.