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.Management Sciences
Category: Periodontal Ligament
Principal fibres of periodontal ligament are attached to_____________?
A. Alveolar bone proper
B. Bundle bone
C. Lamellar bone
D. Cortical bone
Interdependency of osteoblasts and osteoclasts in bone remodeling is called as_____________?
A. Lacunae
B. Coupling
C. Reversal lines
D. Canaliculi
The attached apparatus of tooth is composed of______________?
A. Gingiva, cementum and alveolar bone
B. Gingiva and cementum
C. Cementum and periodontal ligament
D. Peridontal ligament the cementum and the alveolar bone
Collagen biosynthesis occurs inside the______________?
A. Chondroblasts
B. Odontoblasts
C. Osteoblasts
D. Fibroblasts
Which of the following is correct?
A. Fibronectin helps in attachment of fibroblasts to collagen
B. Cementicles are found in periodontal ligament of order individuals
C. The large nerve fibres are myelinated and are concerned with discerment of touch
D. The small nerve fibres may or may not be myelinated and are concerned with discrement of pain
E. All of the above
A special feature of the periodontal ligament fibroblasts is______________?
A. The number or organelles
B. Presence of actin fibres and shape change
C. size of the cells
D. Collagen fibre formation
Group of fibres, which resist the masticatory forces___________?
A. Dentogingival
B. Transeptal
C. Oblique
D. Horizontal
The calcified mass found in the PDL are_____________?
A. Cementicles
B. Osteoblasts
C. Cementoclasts
D. Osteoclasts
Development of supporting tissues of the tooth is initiated by____________?
A. Cells of dental follicle
B. Cells of odontogenic layer
C. Cementoblasts
D. Cells of the gingiva
Periodontal ligament has predominantly_________?
A. Type II collagen fibres
B. Oxytalan fibres
C. Elastic fibres
D. Type I collagen fibres
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