21 Questions
What is the primary function of osteoblasts in osteoid tissue formation?
To produce an organic intercellular substance
What is the term for the formation of calcifiable intercellular substance in osteoid tissue?
Secondary osteoid tissue
What is the characteristic of Sharpey's Fibers in areas of recent bone apposition?
They are flexible and reflective of plasticity
What type of Sharpey's Fibers joins old and new fibrils?
Continuous Fibers
What is the term for the region where Sharpey's Fibers are attached?
Bundle Bone
What is the primary function of the periodontal ligament in relation to the tooth?
To absorb shock and provide resistance to light and heavy forces
What is the range of width of the periodontal ligament?
.10-.38 mm
What is the term for the joint-like connection between the tooth and bone?
Syndesmoses
What is the function of the periodontal ligament in relation to mastication?
To provide sensory information during mastication
How does the width of the periodontal ligament vary with age?
It varies with age, with different widths at different age ranges
What is the term for the process of continuous remodeling of the periodontal ligament?
Remodeling
What is the function of osteoclasts in the periodontal ligament?
To maintain the periodontal ligament by resorbing bone
What type of cells can form dental cysts if stimulated?
Epithelial cells
What is the primary function of mesenchymal cells in the periodontal ligament?
To provide a source of new cells for the periodontal ligament
What is the role of macrophages in the periodontal ligament?
To respond to immune stimuli and phagocytose foreign bodies
What type of collagen fibers are predominant in the periodontal ligament?
Type I and III
What is the primary function of collagen fibers in the periodontal ligament?
To provide tensile strength and support
What is the function of the alveolar crest group of fibers in the periodontal ligament?
To resist vertical forces
What is the function of the horizontal fiber group in the periodontal ligament?
To resist horizontal forces
What is the function of the oblique fiber group in the periodontal ligament?
To provide additional support and stabilization
What is the result of increased functional load on the periodontal ligament?
Widening of the periodontal space
This quiz covers the anatomy and functions of periodontal ligament and cementum, including their role in tooth anchoring and response to mechanical trauma. It also explores the relationship between cementum and dentin with alveolar bone.
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