Sharpey’s fibres are derived from_____________?
A. Hertwig’s root sheath
B. Epithelial rests of malassez
C. Alveolar bone
D. Dental follicle
Periodontal Ligament
Periodontal ligament has predominantly_________?
Periodontal ligament has predominantly_________?
A. Type II collagen fibres
B. Oxytalan fibres
C. Elastic fibres
D. Type I collagen fibres
Which of the following groups of fibres are not attached to alveolar bone ?
Which of the following groups of fibres are not attached to alveolar bone ?
A. Transseptal
B. Horizontal
C. Oblique
D. Apical
The most abundant principle fibre group in periodontal ligament is____________?
The most abundant principle fibre group in periodontal ligament is____________?
A. Horizontal
B. Transeptal
C. Apical
D. Oblique
In mammals independent and tough suspension for teeth is provided by____________?
In mammals independent and tough suspension for teeth is provided by____________?
A. Alveolar sockets
B. Cementum
C. Gubernacular cords
D. Periodontal membrane
Group of fibres, which resist the masticatory forces___________?
Group of fibres, which resist the masticatory forces___________?
A. Dentogingival
B. Transeptal
C. Oblique
D. Horizontal
Fibres of periodontal ligament embedded in the bone are_____________?
Fibres of periodontal ligament embedded in the bone are_____________?
A. Sharpey’s fibres
B. Tomes fibres
C. Elastic fibres
D. Ray’s fibres
The attached apparatus of tooth is composed of______________?
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
Age changes in periodeontal ligament include which of the following ?
Age changes in periodeontal ligament include which of the following ?
A. Increased fibroplasia
B. Increased vascularity
C. Increased thickness
D. Decreased in number of cementicles
Collagen molecule exhibits all of the following features except_____________?
Collagen molecule exhibits all of the following features except_____________?
A. Triple pleated sheath
B. Mostly contains glycine residues
C. Exhibit cross striations at 64 μm
D. Intracellular in nature