Periodontium components / Parts of periodontium slideshare ppt

 The periodontium is defined as those tissues supporting and investing the tooth.

Components of periodontium

1. Cementum
2. Periodontal ligaments
3. Bone lining the alveolus
4. Gingiva facing the tooth

1. Cementum

• The cementum is a hard, avascular connective tissue that covers the roots of teeth.
• Cementum is classified according to the presence or absence of cells within its matrix and the origin of the collagen fibers of the matrix. 

2. Periodontal ligaments

• The PDL is that soft, specialized connective tissue situated between the cementum covering the root of the tooth and the bone-forming the socket wall.
•  It attaches a tooth to the alveolar bone.

3. Gingiva

• It is the soft, pink tissue that surrounds and protects the bottom of the teeth where they enter the jawbone.
  

4. Alveolar process

• The alveolar process is one of the jaws containing the sockets (alveoli) for the teeth. 

Functions of periodontium

1. It provides support to the tooth.
2. It protects the tooth against oral microflora. 
3. Attachment of the tooth to the bone.

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Diagram showing Components of Periodontium