Periodontium anatomy 2024/2025

When does the periodontium start to develop?

• During the formation of enamel

• During the formation of pulp

• During the formation of root

What are the cells that are involved in periodontium formation?

• Cells of dental papilla

• Stellate reticulum

• Cells of dental follicles

What is the percentage of inorganic material in cementum?

• 50-60%

• 90-95%

• 20-30%

The periodontal tissues develop from_____________

State one example of inorganic material present in cementum

State one example of organic material in cementum.

State one similarity between cementum and bone.

State one difference between cementum and bone.

What is the normal level of alveolar bone height in relation to CEJ

• 1-2mm below CEJ

• 2-3mm below CEJ

• 0.2 to to 0.8mm above CEJ

What is the average width of periodontal ligament?

• 0.2mm

• 1.0mm

• 2.0mm