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KUD University Question Paper
Second Year B.D.S. Degree Examination May 2009
Paper – III : ORAL ANATOMY, HISTOLOGY AND PHYSIOLOGY
Time : 3 Hours
Max. Marks : 100
PART – A
1. Enumerate the types of dentin. Discuss about various structures observed in a ground section of dentin. 10
2. Discuss in detail with diagrams, the macroscopic and microscopic structure of gingiva. 10
3. Write briefly on the following : (3×5=15 Marks)
a) Stellate reticulum.
b) Occlusal aspect of mandibular first premolar.
c) Phases of deglutition
4. Multiple choice questions : (1×15=15 Marks)
1) The cells in oral epithelicum, those function as pressure sensitive cells
a) Merkel cells b) Basal cells c) Langerhans' cells d) Spinous cells
2) Type of collagen that forms a chicken wire configuration in basement membrane
a) Type VIII b) Type VII c) Type IV d) Type I
3) The lines observed in bone, that is indicative of constant remodelling of bone
a) Resting lines
b) Reversal lines
c) Imbrication lines
d) Incremental lines
4) Basic structural and functional unit of bone is
a) Haversian canal
b) Volkmann's canal
c) Osteon
d) Lamellae
5) The functional integrity of periodontium is maintained through _____________ function of periodontal ligament.
a) Supportive function
b) Proprioceptive function
c) Nutritive function
d) Homeostatic function
6) Remnants of Hertwig's Epithelial Root sheaths are
a) Cell rests of Zukerkandl
b) Cell rests of Malassez
c) Cell rests of Serres'
d) Cell rests of Retzius
7) Hyaline layer of Hopewell Smith is found
a) Between dentin and cementum
b) Between dentin and enamel
c) Lining the periphery of cementum
d) Covering the newly erupted teeth
8) Slow rate of cementum deposition leads to formation of
a) Acellular afibrillar cementum
b) Mixed stratified cementum
c) Acellular cementum
d) Afibrillar cementum
9) Perikimata is the
a) External manifestation of striae of Retzius
b) External manifestation of enamel lamellae
c) Organic covering on newly erupted teeth
d) Organic covering formed from saliva on enamel
10) The optical phenomenon of enamel that can be observed only in reflected light is
a) Gnarled enamel
b) Hunter Schreger bands
c) Striae of Retzius
d) None of the above
11) Non successor permanent teeth develop from
a) Successional lamina
b) Primary epithelial band
c) Accessional lamina
d) Vestibular lamina
12) The only paranasal sinus which is large enough to be evident radiographically, at the time of birth
a) Maxillary sinus
b) Sphenoid sinus
c) Ethmoid sinus
d) Frontal sinus
13) Normal serum calcium level is
a) 9-11 gm%
b) 9-11 mg%
c) 3-5 mg%
d) 14-18 mg%
14) The tooth that may show a 'Y' shaped configuration of developmental grooves
a) Maxillary 2nd premolar
b) Mandibular first premolar
c) Mandibular 2nd premolar
d) Mandibular 2nd molar
15) Only permanent tooth that shows longer mesial slope from the facial aspect
a) Canines
b) Maxillary first premolar
c) Mandibular first premolar
d) Maxillary second premolar
PART – B
5. Discuss the various differences between deciduous and permanent dentition. 10
6. Describe with diagram the histology of pulp. Add a note on its functions. 10
7. Write briefly on the following : (3×5=15 Marks)
a) Enamel rods
b) Ligaments of TMJ
c) Differences between cellular and acellular cementum.
8. Multiple choice questions : (1×15=15 Marks)
1) The cytoplasmic organelle that contribute material that forms a permeability barrier in keratinized epithelium is
a) Od land bodies b) Keratinosomes c) Golgi complex d) Desmosomes
2) ______________ forms a protective covering for newly formed enamel till the tooth erupts.
a) Nasmith's membrane
b) Enamel pellicle
c) Reduced enamel epithelium
d) Dental lamina
3) First permanent tooth erupts into the oral cavity at about
a) 8 - 9 years
b) 6 years
c) 4 - 5 years
d) 7 - 8 years
4) Linear elevation found extending from the cusp tip to the cervical region of a tooth, on buccal aspect is called as
a) Cervical ridge
b) Triangular ridge
c) Cuspal ridge
d) Buccal ridge
5) The largest cusp in permanent maxillary first molar is
a) Mesiolingual cusp
b) Mesiobuccal cusp
c) Distolingual cusp
d) Distobuccal cusp
6) Uncalcified or hypocalcified structure found in fully mineralized dentin matrix is
a) Inter tubular dentin
b) Interglobular dentin
c) Intra tubular dentin
d) None of the above
7) Incremental lines of dentin are called as
a) Incremental lines of Retzius
b) Incremental lines of von Ebner
c) Incremental lines of von Korffs
d) Incremental lines of Owen
8) Cell free zone of pulp is also called as
a) Zone of Rashkow
b) Zone of Weil
c) Zone of Hopewell Smith
d) Zone of Retzius
9) The type of cementum that is primarily involved in attachment of tooth to alveolar bone
a) Acellular cementum
b) Cellular cementum
c) Intermediate cementum
d) Mixed stratified cementum
10) Most of the cellular processes of cementocytes are directed towards the
a) Dentinocemental junction
b) Periodontal ligament
c) Cervical part of the tooth
d) To all the above mentioned direction
11) ______________ fibers are also celled as interdental ligament.
a) Intermediate fibers
b) Inter radicular fibers
c) Trans alveolar fibers
d) Trans-septal fibers
12) The perforations present in interdental and inter radicular septa which allows the passage of blood vessels and nerves are called
a) Canal of Zuckerkandl and Hirschfeld
b) Haversian canal
c) Volkmann's canal
d) None of the above
13) Main type of inter cellular junctions found between epithelial cells of oral mucosa is
a) Hemidesmosomes
b) Desmosomes
c) Gap junctions
d) Tight junction
14) The cells that may be observed as an age change among the salivary duct lining cells, which contain coarse eosinophilic granular cytoplasm
a) Asterocytes
b) Myoepithelial cells
c) Goblet cells
d) Oncocytes
15) Odontoclasts are capable of resorbing
a) Only dentin
b) Dentin and cementum
c) Only cementum
d) Enamel, dentin and cementum
KUD University Question Paper
Second Year B.D.S. Degree Examination May 2009
Paper – III : ORAL ANATOMY, HISTOLOGY AND PHYSIOLOGY
Time : 3 Hours
Max. Marks : 100
PART – A
1. Enumerate the types of dentin. Discuss about various structures observed in a ground section of dentin. 10
2. Discuss in detail with diagrams, the macroscopic and microscopic structure of gingiva. 10
3. Write briefly on the following : (3×5=15 Marks)
a) Stellate reticulum.
b) Occlusal aspect of mandibular first premolar.
c) Phases of deglutition
4. Multiple choice questions : (1×15=15 Marks)
1) The cells in oral epithelicum, those function as pressure sensitive cells
a) Merkel cells b) Basal cells c) Langerhans' cells d) Spinous cells
2) Type of collagen that forms a chicken wire configuration in basement membrane
a) Type VIII b) Type VII c) Type IV d) Type I
3) The lines observed in bone, that is indicative of constant remodelling of bone
a) Resting lines
b) Reversal lines
c) Imbrication lines
d) Incremental lines
4) Basic structural and functional unit of bone is
a) Haversian canal
b) Volkmann's canal
c) Osteon
d) Lamellae
5) The functional integrity of periodontium is maintained through _____________ function of periodontal ligament.
a) Supportive function
b) Proprioceptive function
c) Nutritive function
d) Homeostatic function
6) Remnants of Hertwig's Epithelial Root sheaths are
a) Cell rests of Zukerkandl
b) Cell rests of Malassez
c) Cell rests of Serres'
d) Cell rests of Retzius
7) Hyaline layer of Hopewell Smith is found
a) Between dentin and cementum
b) Between dentin and enamel
c) Lining the periphery of cementum
d) Covering the newly erupted teeth
8) Slow rate of cementum deposition leads to formation of
a) Acellular afibrillar cementum
b) Mixed stratified cementum
c) Acellular cementum
d) Afibrillar cementum
9) Perikimata is the
a) External manifestation of striae of Retzius
b) External manifestation of enamel lamellae
c) Organic covering on newly erupted teeth
d) Organic covering formed from saliva on enamel
10) The optical phenomenon of enamel that can be observed only in reflected light is
a) Gnarled enamel
b) Hunter Schreger bands
c) Striae of Retzius
d) None of the above
11) Non successor permanent teeth develop from
a) Successional lamina
b) Primary epithelial band
c) Accessional lamina
d) Vestibular lamina
12) The only paranasal sinus which is large enough to be evident radiographically, at the time of birth
a) Maxillary sinus
b) Sphenoid sinus
c) Ethmoid sinus
d) Frontal sinus
13) Normal serum calcium level is
a) 9-11 gm%
b) 9-11 mg%
c) 3-5 mg%
d) 14-18 mg%
14) The tooth that may show a 'Y' shaped configuration of developmental grooves
a) Maxillary 2nd premolar
b) Mandibular first premolar
c) Mandibular 2nd premolar
d) Mandibular 2nd molar
15) Only permanent tooth that shows longer mesial slope from the facial aspect
a) Canines
b) Maxillary first premolar
c) Mandibular first premolar
d) Maxillary second premolar
PART – B
5. Discuss the various differences between deciduous and permanent dentition. 10
6. Describe with diagram the histology of pulp. Add a note on its functions. 10
7. Write briefly on the following : (3×5=15 Marks)
a) Enamel rods
b) Ligaments of TMJ
c) Differences between cellular and acellular cementum.
8. Multiple choice questions : (1×15=15 Marks)
1) The cytoplasmic organelle that contribute material that forms a permeability barrier in keratinized epithelium is
a) Od land bodies b) Keratinosomes c) Golgi complex d) Desmosomes
2) ______________ forms a protective covering for newly formed enamel till the tooth erupts.
a) Nasmith's membrane
b) Enamel pellicle
c) Reduced enamel epithelium
d) Dental lamina
3) First permanent tooth erupts into the oral cavity at about
a) 8 - 9 years
b) 6 years
c) 4 - 5 years
d) 7 - 8 years
4) Linear elevation found extending from the cusp tip to the cervical region of a tooth, on buccal aspect is called as
a) Cervical ridge
b) Triangular ridge
c) Cuspal ridge
d) Buccal ridge
5) The largest cusp in permanent maxillary first molar is
a) Mesiolingual cusp
b) Mesiobuccal cusp
c) Distolingual cusp
d) Distobuccal cusp
6) Uncalcified or hypocalcified structure found in fully mineralized dentin matrix is
a) Inter tubular dentin
b) Interglobular dentin
c) Intra tubular dentin
d) None of the above
7) Incremental lines of dentin are called as
a) Incremental lines of Retzius
b) Incremental lines of von Ebner
c) Incremental lines of von Korffs
d) Incremental lines of Owen
8) Cell free zone of pulp is also called as
a) Zone of Rashkow
b) Zone of Weil
c) Zone of Hopewell Smith
d) Zone of Retzius
9) The type of cementum that is primarily involved in attachment of tooth to alveolar bone
a) Acellular cementum
b) Cellular cementum
c) Intermediate cementum
d) Mixed stratified cementum
10) Most of the cellular processes of cementocytes are directed towards the
a) Dentinocemental junction
b) Periodontal ligament
c) Cervical part of the tooth
d) To all the above mentioned direction
11) ______________ fibers are also celled as interdental ligament.
a) Intermediate fibers
b) Inter radicular fibers
c) Trans alveolar fibers
d) Trans-septal fibers
12) The perforations present in interdental and inter radicular septa which allows the passage of blood vessels and nerves are called
a) Canal of Zuckerkandl and Hirschfeld
b) Haversian canal
c) Volkmann's canal
d) None of the above
13) Main type of inter cellular junctions found between epithelial cells of oral mucosa is
a) Hemidesmosomes
b) Desmosomes
c) Gap junctions
d) Tight junction
14) The cells that may be observed as an age change among the salivary duct lining cells, which contain coarse eosinophilic granular cytoplasm
a) Asterocytes
b) Myoepithelial cells
c) Goblet cells
d) Oncocytes
15) Odontoclasts are capable of resorbing
a) Only dentin
b) Dentin and cementum
c) Only cementum
d) Enamel, dentin and cementum
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