Periodontal ligament is made up of____________?
Correct answer: B. Type I and Type III collagen
- A. Type I collagen
- B. Type I and Type III collagen
- C. Type I and Type II collagen
- D. Type I and Type IV collagen
Explanation
The periodontal ligament contains mainly type I collagen, with a significant contribution from type III collagen that forms part of its supporting fibre network. Type II is characteristic of cartilage, while type IV is associated mainly with basement membranes.
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