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Cementum covers the enamel free roots and provides
a point of attachment for the periodontal ligament.
Similar in composition to woven bone it is 45-50%
inorganic, primarily as hydroxyapatite crystals,
and 50-55% organic material.
Cementum is capable of formation, destruction
and repair and remodels continually throughout
life. It is nourished from vessels within the
periodontal ligament.
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