1 - A special feature of the periodontal ligament fibroblasts is______________?
1 - A special feature of the periodontal ligament fibroblasts is______________?
Presence of actin fibres and shape change
2 - Age changes in periodeontal ligament include which of the following ?
2 - Age changes in periodeontal ligament include which of the following ?
Increased fibroplasia
3 - Aging process affects pulp tissue by_____________?
3 - Aging process affects pulp tissue by_____________?
Decreasing the size and shape of pulp tissue and cellular component
4 - All of the following are true about functions of dental pulp except______________?
4 - All of the following are true about functions of dental pulp except______________?
Nerve supply to enamel through fibres
5 - All of the following cells of periodontal ligament are of mesenchymal origin except______________?
5 - All of the following cells of periodontal ligament are of mesenchymal origin except______________?
Cell rests of malassez
6 - Anchoring fibrills are composed of_____________?
6 - Anchoring fibrills are composed of_____________?
Type V and VII collagen
7 - Bone adjacent to periodontal ligament that contains a great number of sharpey's fibres is known as______________?
7 - Bone adjacent to periodontal ligament that contains a great number of sharpey's fibres is known as______________?
Bundle bone
8 - Cells occurring in greatest number in pulp are______________?
8 - Cells occurring in greatest number in pulp are______________?
Fibroblasts
9 - Cementicles are found in the_____________?
9 - Cementicles are found in the_____________?
Periodontal ligament
10 - Centre of the disc in TMJ is_____________?
10 - Centre of the disc in TMJ is_____________?
Avascular & deviod of nervous tissue
11 - Collagen biosynthesis occurs inside the______________?
11 - Collagen biosynthesis occurs inside the______________?
Fibroblasts
12 - Collagen molecule exhibits all of the following features except_____________?
12 - Collagen molecule exhibits all of the following features except_____________?
Intracellular in nature
13 - Development of supporting tissues of the tooth is initiated by____________?
13 - Development of supporting tissues of the tooth is initiated by____________?
Cells of dental follicle
14 - Dystrophic calcifiaction is seen most commonly in which of the following oral tissues__________?
14 - Dystrophic calcifiaction is seen most commonly in which of the following oral tissues__________?
Pulp
15 - Fibres of periodontal ligament embedded in the bone are_____________?
15 - Fibres of periodontal ligament embedded in the bone are_____________?
Sharpey's fibres
16 - Group of fibres, which resist the masticatory forces___________?
16 - Group of fibres, which resist the masticatory forces___________?
Oblique
17 - Histologically the dental pulp most closely resembles______________?
17 - Histologically the dental pulp most closely resembles______________?
Loose connective tissue
18 - In a dried skull, holes on the lingual aspects of the deciduous teeth are called_____________?
18 - In a dried skull, holes on the lingual aspects of the deciduous teeth are called_____________?
Gubernacular canals
19 - In mammals independent and tough suspension for teeth is provided by____________?
19 - In mammals independent and tough suspension for teeth is provided by____________?
Periodontal membrane
20 - Interdependency of osteoblasts and osteoclasts in bone remodeling is called as_____________?
20 - Interdependency of osteoblasts and osteoclasts in bone remodeling is called as_____________?
Coupling
21 - Intermediate plexus is absent in which of the following principle fibres_____________?
21 - Intermediate plexus is absent in which of the following principle fibres_____________?
Gingival
22 - Intermediate plexus is seen in the____________?
22 - Intermediate plexus is seen in the____________?
PDL
23 - Narrowing of periodontal ligament in labially placed mandibular canine with age is due to_____________?
23 - Narrowing of periodontal ligament in labially placed mandibular canine with age is due to_____________?
Due to deposition of cementum and bone
24 - Odontoblasts are derived from______________?
24 - Odontoblasts are derived from______________?
Undifferentiated mesenchymal
25 - Pain originate in the pulp due to_________?
25 - Pain originate in the pulp due to_________?
free nerve ending at sub odontoblastic layer
26 - Pericytes are found___________?
26 - Pericytes are found___________?
Around capillaries of pulp
27 - Periodontal fibres joining cemental surface of one tooth, to cemental surface of adjacent tooth are called____________?
27 - Periodontal fibres joining cemental surface of one tooth, to cemental surface of adjacent tooth are called____________?
Transseptal fibres
28 - Periodontal ligament has predominantly_________?
28 - Periodontal ligament has predominantly_________?
Type I collagen fibres
29 - Periodontal ligament is made up of____________?
29 - Periodontal ligament is made up of____________?
Type I and Type III collagen
30 - Principal fibres of periodontal ligament are attached to_____________?
30 - Principal fibres of periodontal ligament are attached to_____________?
Bundle bone
31 - Propriceptors are seen in all except______________?
31 - Propriceptors are seen in all except______________?
Pulp
32 - Protein secreted by odontoblast_____________?
32 - Protein secreted by odontoblast_____________?
Collagen
33 - Pulp responds to all stimuli by pain because it has only_______________?
33 - Pulp responds to all stimuli by pain because it has only_______________?
Free nerve endings
34 - Pulp tissue contains all except____________?
34 - Pulp tissue contains all except____________?
Ameloblasts
35 - Regressive changes in pulp include____________?
35 - Regressive changes in pulp include____________?
All of the above
36 - Remnants of the Hertwig's root sheath are found in____________?
36 - Remnants of the Hertwig's root sheath are found in____________?
Periodontal ligament
37 - Sharpey's fibres are derived from_____________?
37 - Sharpey's fibres are derived from_____________?
Dental follicle
38 - Sharpey's fibres are present in_______________?
38 - Sharpey's fibres are present in_______________?
Bone
39 - Size of pulp chamber____________?
39 - Size of pulp chamber____________?
Decreases with age
40 - The 2nd most prominent cells in pulp are______________?
40 - The 2nd most prominent cells in pulp are______________?
Odontoblasts
41 - The attached apparatus of tooth is composed of______________?
41 - The attached apparatus of tooth is composed of______________?
Peridontal ligament the cementum and the alveolar bone
42 - The average life time of primary pulp in oral cavity is__________?
42 - The average life time of primary pulp in oral cavity is__________?
8.3 years
43 - The calcified mass found in the PDL are_____________?
43 - The calcified mass found in the PDL are_____________?
Cementicles
44 - The cell free zone in pulp lies____________?
44 - The cell free zone in pulp lies____________?
Below odontoblast
45 - The cells of the dental pulp which are responsible for the deposition of reparative dentin are_________?
45 - The cells of the dental pulp which are responsible for the deposition of reparative dentin are_________?
Odontoblasts
46 - The component of future T.M.J shows development at _____________?
46 - The component of future T.M.J shows development at _____________?
10 weeks
47 - The dental pulp contains nerve endings/receptors for____________?
47 - The dental pulp contains nerve endings/receptors for____________?
Pain
48 - The dental pulp is derived form____________?
48 - The dental pulp is derived form____________?
Dental papilla
49 - The development of pulp begins__________?
49 - The development of pulp begins__________?
8th week of IU
50 - The diameter of the largest arterial vessels in the pulp range from_____________?
50 - The diameter of the largest arterial vessels in the pulp range from_____________?
50-100 μm
51 - The fibroblasts associated with capillaries are__________?
51 - The fibroblasts associated with capillaries are__________?
Pericytes
52 - The main function of horizontal fibres of P.D ligament is____________?
52 - The main function of horizontal fibres of P.D ligament is____________?
Maintains the mesiodistal width
53 - The most abundant group of fibres in the PDL are_____________?
53 - The most abundant group of fibres in the PDL are_____________?
Oblique
54 - The most abundant principle fibre group in periodontal ligament is____________?
54 - The most abundant principle fibre group in periodontal ligament is____________?
Oblique
55 - The number of pulp organs in a person in___________?
55 - The number of pulp organs in a person in___________?
52
56 - The odontoblasts killed during cavity preparation are derived from_____________?
56 - The odontoblasts killed during cavity preparation are derived from_____________?
Undifferentiated cells
57 - The periodontal ligament is approximately_____________?
57 - The periodontal ligament is approximately_____________?
0.25 mm in thickness
58 - The periodontal ligament_____________?
58 - The periodontal ligament_____________?
Contains epithelial cells
59 - The plexus of Rashkov is present in which of the following zones in pulp ?
59 - The plexus of Rashkov is present in which of the following zones in pulp ?
Cell free zone
60 - The primary function of the dental pulp is____________?
60 - The primary function of the dental pulp is____________?
Production of dentin
61 - The primary response of the pulp to tissue destruction is_______________?
61 - The primary response of the pulp to tissue destruction is_______________?
Inflammation
62 - The radicular pulp is continous with tissues of the periapical area via the____________?
62 - The radicular pulp is continous with tissues of the periapical area via the____________?
Apical foramen
63 - The rest of malassez in the periodontal ligament are derived from_____________?
63 - The rest of malassez in the periodontal ligament are derived from_____________?
Odontogenic epithelium
64 - The size of apical foramen of maxillary teeth in adult is______________?
64 - The size of apical foramen of maxillary teeth in adult is______________?
0.4 mm
65 - The total volumes of all permanent pulp organ______________?
65 - The total volumes of all permanent pulp organ______________?
0.38 cc
66 - The type of bone present in the labial area of anterior teeth is_______________?
66 - The type of bone present in the labial area of anterior teeth is_______________?
Cortical
67 - The vascular supply of the periodontal ligament is______________?
67 - The vascular supply of the periodontal ligament is______________?
A net like plexus that runs closer to the bone than to the cementum
68 - True about osteoclasts_____________?
68 - True about osteoclasts_____________?
All of the above are true
69 - Unmyelinated nerve fibres of pulp are____________?
69 - Unmyelinated nerve fibres of pulp are____________?
Associated with blood vessels and are sympathetic in nature
70 - Vitality of pulp depends on________________?
70 - Vitality of pulp depends on________________?
Blood supply
71 - Weil's zone of pulp is__________?
71 - Weil's zone of pulp is__________?
cell free zone
72 - Which of the following groups of fibres are not attached to alveolar bone ?
72 - Which of the following groups of fibres are not attached to alveolar bone ?
Transseptal
73 - Which of the following is not the principle fibre group of the periodontal ligament___________?
73 - Which of the following is not the principle fibre group of the periodontal ligament___________?
Transseplat
74 - Which of the following structures is not found in a living pulp ?
74 - Which of the following structures is not found in a living pulp ?
Haversian fibres
75 - Width of PDL is_______________?
75 - Width of PDL is_______________?
0.25 mm
76 - Width of the periodontal ligament is least at______________?
76 - Width of the periodontal ligament is least at______________?
Fulcrum of rotation
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