KVV E-Modules

1. Classification of Cementum

1. Classification of Cementum

1. Define cementum. Classify cementum and describe its types in detail. Key points to include: Definition: Cementum is a specialized mineralized tissue that covers the root of the tooth and helps anchor the periodontal ligament (PDL) fibers. Functions: Tooth support, repair, compensation for attrition, and maintaining occlusal height. Classification of Cementum (based on cellularity and fiber content): Acellular Afibrillar Cementum (AAC): Found at the cervical enamel surface Contains no cells or collagen fibers Formed by cementoblasts without inserting fibers Acellular Extrinsic Fiber Cementum (AEFC): Located in the cervical and middle third of the root No cells but contains Sharpey's fibers from PDL Main function: Tooth anchorage Cellular Intrinsic Fiber Cementum (CIFC): Found mainly in resorption lacunae and apical areas Contains cementocytes and intrinsic collagen fibers Formed by cementoblasts during repair Cellular Mixed Stratified Cementum (CMSC): Found in apical third and furcation areas Contains both extrinsic and intrinsic fibers and cementocytes Formed during continuous eruption or adaptation Intermediate Cementum: Located between granular dentin and cementum Contains enamel-like proteins Formed by Hertwig’s epithelial root sheath Clinical significance: Role in periodontal therapy, regeneration, and orthodontics 2. Classify cementum and differentiate between cellular and acellular cementum. Key points to include: Classification as above Compare on basis of location, cellularity, function, thickness, and presence of fibers Table format for easy comparison Relevance in clinical procedures like scaling, root planing, regeneration

1. Classification of Cementum