Periodontal ligament is a series of soft connective tissue fibers that hold the teeth in place in the jaws. This ligament also provides cushioning for the teeth and helps protect them from trauma. Periodontal ligament rods are made up of collagen fiber bundles arranged along long axes, which run parallel to each other at right angles to the long axis of the tooth.
Periodontal ligament is also known as periodontal membrane, gingival lamina or cementum attachment system. Periodontal ligament connects each tooth to the surrounding jawbone and helps hold the teeth in their sockets. It also provides a blood supply to the root surface of the teeth and helps protect the gums from damage.
Periodontal Ligament made of?
- The ligament is composed of connective tissue fibers that attach to both the gum tissue around each tooth, as well as to the underlying bone. This connection between tooth and jawbone is called a periodontal attachment. It enables biting forces to be distributed throughout the entire length of each tooth.
- These fibers are organized into bundles that run along the length of each tooth. They are held together by substances called ground substance and proteoglycans, which give them flexible strength. Periodontal ligament rods, then, help to hold the teeth in place during daily functions such as chewing and speaking, but also allow for movement of the teeth when necessary, such as during orthodontic treatment.
- The periodontal ligament is constantly being remodeled, or rebuilt, through a process of cell turnover. This ensures that the ligament remains healthy and able to do its job properly. When this remodeling process is disrupted, it can lead to problems such as chronic inflammation and even tooth loss.
- Some factors that may affect periodontal ligament health include poor oral hygiene, trauma to the teeth, infection or inflammatory diseases such as gingivitis. Individuals who are at a greater risk for periodontal disease due to these conditions may require extra care in maintaining healthy periodontal ligaments.
- The periodontal ligament is essential to the function and health of your teeth. Fortunately, by practicing good oral hygiene habits and visiting your dentist regularly, you can help keep this vital tissue functioning at its best.
Types of Periodontal Ligament:
Periodontal ligament has two main types: alveolar and gingival. Alveolar ligament is the type that attaches your teeth to your jawbone, while gingival ligament is the type that attaches your gum tissue to your teeth.
1. Alveolar Ligament consists of collagen fibers that are arranged in bundles. These fibers attach to both the tooth and the surrounding bone. The alveolar ligament also contains blood vessels and nerves that help nourish the tooth and provide sensation.
2. Gingival Ligament, on the other hand, is made up of collagen fibers that attach the gum tissue to the teeth. This type of ligament also contains blood vessels and nerves.
Both types of ligament are constantly being remodeled, or replaced, through a process called turnover. The turnover begins in alveolar ligament around age 6 to 8, but it occurs much later for gingival ligament—around puberty. This is because the gingival tissue does not completely cover the tooth, but is only attached to a portion of the tooth called the cementum. The cementum, in turn, receives its blood supply from alveolar ligament.
Importance of Periodontal Ligament:
- The periodontal ligament is a specialized tissue that attaches the teeth to the surrounding bone. It is also responsible for regulating tooth movement during orthodontic treatment and provides support and protection of the final dental restoration.
- Healthy periodontal ligament is imperative to healthy teeth, gums, and jawbone. Without this tissue, the teeth would eventually fall out. Additionally, the periodontal ligament helps to distribute chewing forces evenly throughout the teeth and jawbone. This prevents the teeth from becoming damaged or dislodged.
- The periodontal ligament also contains nerves that provide sensation to the teeth, gums, and surrounding tissues. These nerves help us to avoid hot, cold, or sweet foods that may damage the teeth.
- In short, the periodontal ligament is a vital tissue necessary for the function and health of our teeth. Therefore, it is important to take care of this tissue by practicing good oral hygiene habits and visiting the dentist regularly.
The periodontal ligament is a specialized tissue that attaches the teeth to the surrounding bone and helps to distribute chewing forces evenly throughout the teeth and jawbone. This tissue also contains nerves that provide sensation to the teeth, gums, and surrounding tissues.
The periodontal ligament is essential for the function and health of our teeth and gums, and it is important to take care of this tissue by practicing good oral hygiene habits and visiting the dentist regularly.