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1) Size of pulp chamber____________? a. Increases with age b. Decreases with age c. Increased in some cases and decreases in some cases d. None of the above
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2) The average life time of primary pulp in oral cavity is__________? a. 8.3 years b. 2 years c. 7 years d. 3 years
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3) The fibroblasts associated with capillaries are__________? a. Plasma cell b. Histocytes c. Lymphocytes d. Pericytes
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4) The size of apical foramen of maxillary teeth in adult is______________? a. 0.4 mm b. 0.3 mm c. 0.2 mm d. 0.7 mm
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5) The number of pulp organs in a person in___________? a. 32 b. 50 c. 52 d. 62
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6) The cell free zone in pulp lies____________? a. Above odontoblast b. Below odontoblast c. In radicular pulp d. In pulp horn
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7) Cells occurring in greatest number in pulp are______________? a. Cementoblasts b. Fibroblasts c. Osteoblasts d. Ameloblasts
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8) The odontoblasts killed during cavity preparation are derived from_____________? a. Unaffected odontoblasts from the pulp b. Undifferentiated cells c. Histocytes d. Osteoblasts
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9) Histologically the dental pulp most closely resembles______________? a. Nerve tissue b. Vascular tissue c. Granulation tissue d. Loose connective tissue
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10) The dental pulp is derived form____________? a. Dental papilla b. Dental sac c. Odontoblasts d. Stellate reticulum
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11) Weil’s zone of pulp is__________? a. Cell degenerated zone b. Cell rich zone c. Cell regenerated zone d. cell free zone
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12) The primary function of the dental pulp is____________? a. Nutritive b. Production of dentin c. Production of enamel d. Vascular supply to the teeth
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13) All of the following are true about functions of dental pulp except______________? a. Formation of dentin b. Nerve supply to dentin c. Sends impulses to CNS d. Nerve supply to enamel through fibres
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14) Which of the following structures is not found in a living pulp ? a. Collagen fibres b. Haversian fibres c. Non-myelinated nerve fibres d. Reticulum
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15) In a dried skull, holes on the lingual aspects of the deciduous teeth are called_____________? a. Volkmann canals b. Canals of Hirchfeld and Zuckerland c. Herversian canals d. Gubernacular canals
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16) The type of bone present in the labial area of anterior teeth is_______________? a. Cortical b. Cancellous c. Osteophytics d. Exophytic
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17) Width of PDL is_______________? a. 0.10 mm b. 0.50 mm c. 0.25 mm d. 0.75 mm
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18) The periodontal ligament is approximately_____________? a. 0.25 mm in thickness b. 0.5 mm in thickness c. 0.75 mm in thickness d. mm in thickness
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19) 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
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20) Width of the periodontal ligament is least at______________? a. Cervical third b. Apical third c. Fulcrum of rotation d. It has uniform width
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21) Cementicles are found in the_____________? a. Gingiva b. Periodontal ligament c. Alveolar bone d. Cementum
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22) Periodontal ligament is made up of____________? a. Type I collagen b. Type I and Type III collagen c. Type I and Type II collagen d. Type I and Type IV collagen
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23) Interdependency of osteoblasts and osteoclasts in bone remodeling is called as_____________? a. Lacunae b. Coupling c. Reversal lines d. Canaliculi
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24) Periodontal fibres joining cemental surface of one tooth, to cemental surface of adjacent tooth are called____________? a. Gingivodental b. Cemental fibres c. Horizontal fibres d. Transseptal fibres
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25) Sharpey’s fibres are derived from_____________? a. Hertwig’s root sheath b. Epithelial rests of malassez c. Alveolar bone d. Dental follicle
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26) Periodontal ligament has predominantly_________? a. Type II collagen fibres b. Oxytalan fibres c. Elastic fibres d. Type I collagen fibres
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27) Which of the following groups of fibres are not attached to alveolar bone ? a. Transseptal b. Horizontal c. Oblique d. Apical
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28) The most abundant principle fibre group in periodontal ligament is____________? a. Horizontal b. Transeptal c. Apical d. Oblique
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29) In mammals independent and tough suspension for teeth is provided by____________? a. Alveolar sockets b. Cementum c. Gubernacular cords d. Periodontal membrane
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30) Group of fibres, which resist the masticatory forces___________? a. Dentogingival b. Transeptal c. Oblique d. Horizontal
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