How much calcification does cementum have?

Cementum is a specialized, calcified tissue that forms the outer covering of the tooth root. It plays a crucial role in anchoring the tooth within the alveolar bone through the periodontal ligament. The correct amount of calcification in cementum is approximately 50%. This percentage reflects the unique composition of cementum, which differs from other dental hard tissues like enamel and dentin. While enamel is highly calcified, cementum has a relatively lower degree of mineralization, allowing for flexibility and adaptability in response to the stresses of occlusion and periodontal health. This property is essential for maintaining the integrity of the tooth within the bone structure and for the maintenance of periodontal health. Thus, the correct answer accurately represents the unique characteristics of cementum compared to other dental tissues.