How is cementum classified, and what is its function?
Cementum is classified into two types: acellular and cellular. Acellular cementum is found closer to the crown and is essential for the attachment of the PDL fibers. Cellular cementum, which contains cementocytes, is located nearer to the root apex and is involved in the repair and regeneration of the periodontium. The primary function of cementum is to provide a medium for the attachment of the PDL fibers to the tooth.
