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Hi All ok I have compiled another series of DAO test questions there are 60 questions in this section and pretty much most it was in my exam, there is 10 in a bunch. Please dont check the answers..and revise it..I will post one more on occlusion..Dental Anatomy questions
DAO test 1
1. The clinical crown of a tooth is:
a. That part that is covered by enamel
b. That part covered by cementum
c. That part that is visible in the mouth
d. None of the above
2. The buccal surface of the tooth is that surface of the tooth that faces the:
a. Tongue
b. Cheek
c. The opposing tooth
d. The adjacent tooth
3. Tooth #30 in the Universal system is:
a. Lower left first molar
b. Lower right first molar
c. Upper left second premolar
d. Upper right second premolar
4. The mandible is the upper jaw and the maxilla is the lower jaw: T/F?
5. In the Universal numbering system, the maxillary left lateral incisor is tooth #:
a. #6
b. #7
c. #8
d. #9
e. #10
6. What terms may be interchangeable🙁on exam it was facial surface)
a. Lingual
b. Facial
c. Occlusal
d. Buccal
e. Labial
1. a and c
2. b and d
3. a and e
4. b, d, and e
7. The root and the crown of the tooth are separated by:
a. DEJ
b. The gingiva
c. CEJ
d. Cementum and Dentin
8. Name the teeth in a single quadrant:
9. Mamelons are normally found on the incisal edge of :
a. All permanent incisor teeth
b. All teeth
c. Are not normal
d. Only posterior teeth
10. What teeth have their mesial surfaces contacting:
a. #7 and #8
b. #8 and #9
c. #25 and #26
d. #6 and #7
Answers:
1. c
2. b
3. b
4. false
5. e
6. 4
7. c
8. central incisor (1), lateral incisor (1), canine (1), premolar (2) , molar (3)
9. a
10.b
DAO test 2
1. From a mesial view, the mandibular lateral and central incisors have a cervical line that:
a. Forms a straight line across the crown labio-lingually
b. Is more curved towards the incisal than on the distal
c. Is convex towards the apex
d. Is less curved towards the incisal than on the mesial
2. From the incisal view of the mandibular lateral incisor the:
a. The cingulum is towards the distal
b. The cingulum is centrally placed on the tooth
c. The cingulum is towards the mesial
d. It is very variable
3. Sharpeys fibers attach:
a. The bone to dentin
b. The cementum to dentin
c. The bone to cementum
d. Bone to gingiva
4. Which of the following tissues is the most inorganic in its makeup?
a. Pulp
b. Dentin
c. Cementum
d. Bone
e. Enamel
5. Name the cells that produce:
a. Enamel
b. Dentin
c. Cementum
d. Pulp tissue
6. Which are the centric holding cusps?
a. Buccal of the upper and lingual of the lower
b. Buccal of the lower and palatal of the upper
c. All cusps hold the occlusion
d. The lingual of the lower and the lingual of the upper
7. On the root of the mandibular lateral incisor you could find:
a. 1 or 2 canals
b. Deep depressions on the mesial and distal surfaces
c. Smooth convex labial
d. All of the above
8. Which of the following are true for the mandibular incisors?
a. Narrowest teeth in the arch
b. Central is wider than the lateral
c. Has a very prominent cingulum
d. Crowns are wider mesiodistally than faciolingually
9. When adjusting the occlusion in Centric (MI) we try to adjust which cusps for the working side of lateral occlusion?
a. Any cusp that interferes
b. The buccal of the lower and lingual of the upper
c. Buccal of the upper and lingual of the lower
d. None of the above
10. Which of the following tissues are not vital? Check all that apply?
a. Dentin
b. Bone
c. Cementum
d. Pulp
e. Gingiva
f. Enamel
Answers:
1. b
2. a
3. c
4. e
5. ameloblasts, odontoblasts, cementoblasts, fibroblasts
6. b
7. d
8. a
9. c
10.f
DAO Test 3
1. When we swallow, the teeth are usually:
a. In a non-working relationship
b. In physiological rest position
c. In MI (maximum intercuspation) position
d. In CENTRIC RELATION
2. In the lingual view of tooth #6 the crown has:
a. A lingual ridge separating the two lingual fossae
b. A CEJ which may have a flattened outline
c. Five convexities, the most prominent of which is the cingulum
d. All of the above
3. From the FACIAL view of tooth #27:
a. The mesial cusp slope is shorter than the distal cusp slope
b. The cusp tip is mesial to the center of the crown
c. The mesial outline of the tooth is straighter than the distal outline
d. All of the above
4. Which developmental groove is unique to the mandibular first premolar?
a. The mesial marginal ridge groove
b. The mesiofacial groove
c. The mesiolingual groove
d. The distolingual groove
5. ECCENTRIC movements of the mandible are?
a. Protrusive
b. Lateral protrusive
c. Lateral working
d. Lateral non-working
e. All of the above
6. Lateral movement of the mandible, having the upper and lower canines in contact is called?
a. Bennett movement
b . Centric occlusion
c. Non-working side contact
d. Working side contact
7. Which of the following is determined by tooth-to-tooth contacts?
a. Postural position
b. Centric relation
c. Maximum intercuspation
d. All of the above
8. In the three cusp variety of the mandibular second premolar:
a. The two lingual cusps are the same size
b. The ML cusp is larger than the DL cusp
c. The DL cusp is larger than the ML cusp
d. All three cusps are the same size
9. When we open our mouth wide, as in yawning:
a. The condyles first translate then rotate
b. The condyles first rotate then translate
c. They rotate and translate at the same time
d. May do any of the above
10. The CENTRIC RELATION position:
a. Is a reproducible position
b. Is a stable position that does not involve tooth contacts
c. Based on anatomical positions
d. All of the above
Answers:
1. c
2. d
3. d
4. c
5. e
6. d
7. c
8. b
9. b
10.d
DAO Test 4
1. Vertical Dimension of Rest is:
a. The distance between the maxilla and mandible when the teeth are in contact
b. Is tooth dependent
c. The distance between the upper and lower jaws when the mandible is in
physiological rest
d. None of the above
2. Mutually protected occlusion refers to:
a. In the MI position the posterior teeth support the vertical dimension and
prevent the transfer of heavy loads to the anterior teeth
b. In lateral movements the canines discluded the posterior teeth
c. In the act of incising the anterior teeth protect the posterior teeth
d. All of the above
e. None of the above
3. All are true for the maxillary 1st premolar EXCEPT:
a. There is a mesial marginal ridge developmental groove
b. Has two roots
c. The occlusal has a twisted appearance
d. May have supplemental secondary occlusal grooves
4. When viewed from the distal the facial cusp of the 2nd premolar?
a. Shorter than the lingual
b. Taller than the lingual
c. Same height as the lingual
d. May vary
5. From the occlusal view of tooth #13:
a. The occlusal form is hexagonal
b. The facial cusp slopes run diagonally across the crown
c. The cusp tips are distal to the center of the crown
d. The crown tapers slightly to the palatal
6. What developmental groove is found on both the 1st and 2nd maxillary premolars?
a. Central developmental groove
b. Mesial marginal ridge groove
c. Distal marginal ridge groove
d. Mesiolingual groove
7. Which statements are true?
a. The medial pterygoid muscles acting togther protrude the mandible
b. The lateral pterygoid muscles acting together protrude the mandible
c. The lateral pterygoid muscles acting together cause lateral movement of the mandible
e. The medial pterygoid muscles acting together cause lateral movement of the
Mandible
8. Vertical overlap:
a. Is the same as Overjet
b. Is the same as Overbite
c. Does not incisal guidance
d. All of the above
9. At what age does tooth #5 erupt?
At what age is the root completed?
10. In group Function occlusion:
a. There is contact on the non-working side
b. The buccal cusps of the posterior teeth contact in lateral movement
c. Is not a used type of occlusion
d. All of the above
Answers:
1. c
2. d
3. d
4. c
5. d
6. a
7. b
8. b
9.
10.b
DAO Test 5
1. In the occlusal view of tooth #3, the shape has two acute angles and two obtuse angles. The obtuse angles are?
a. DL and MB
b. DB and ML
c. MB and ML
d. DB and DL
2. All are true for tooth #14 except:
a. The tooth is wider Mesio-distally on the lingual than on the buccal (from the
occlusal view)
b. The height of the oblique ridge is the same as the height of the mesial and distal marginal ridges
c. The MB cusp is the largest cusp
d. The occlusal surface will have four fossae
3. Tooth #15 will differ from tooth #14:
a. The DL cusp is smaller
b. #15 does not have a cusp of carabelli
c. The apex of the MB root will line up with the furcation area
d. All of the above
4. From the facial view of tooth #3, the MB and DB cusps are:
a. The same size
b. The MB will form an acute angle and the DB will form an obtuse angle
c. The MB will form an obtuse angle and the DB will form an acute angle
d. The buccal developmental groove is in the center of the buccal surface
5. For the permanent maxillary first molar:
Calcification begins?
Tooth erupts?
Root is completed?
6. All are true except
a. All mandibular molars oppose their opposite and one tooth posterior
b. The DB cusps of tooth #30 and #31 contact the central fossa of their respective
opposite molar
c. The ML cusps of #2 and #3 extend into the central fossa of #30 and #31
d. All buccal cusps of the lower posterior teeth contact the marginal ridges of the upper posterior teeth, except the DB cusps of the lower molars
7. The Freeway space or the resting interocclusal distance is
a. Present at VDO
b. Present at VDR
c. Does not exist normally
d. Is present during MI
8. In centric occlusion the Mandibular canines will oppose?
a. Maxillary canine and lateral
b. The maxillary canine and first premolar
c. The maxillary canine only
d. None of the above
9. In right lateral working movement, the movement of the condyles:
a. The right condyle translates and the left condyle rotates
b. The right condyle rotates and the left condyle translates
c. Both rotate
d. Both translate
10. The greater the degree of Incisal Guidance
a. The greater the degree of posterior disclusion
b. Has no effect on posterior disclusion
c. The lesser the degree of posterior disclusion
d. The more the horizontal overbite has to be
Answers:
1. b
2. c
3. d
4. c
5. 0-2 yrs, 6 yrs, 8-10 yrs
6. a
7. b
8. a
9. b
10.a
DAO Test 6
1. From the buccal view of tooth #30, the root bifurcation is:
a. In line with the distobuccal developmental groove
b. Distal to the mesiobuccal developmental groove
c. In line with the mesiobuccal developmental groove
d. Mesial to the mesiobuccal developmental groove
2. From a mesial view of tooth #31:
a. The two mesial cusps are equal in height
b. The two distal cusps are taller than the mesial cusps
c. The mesiobuccal cusp is shorter and more blunt than the mesiolingual cusp
d. The mesiolingual cusp is shorter and more blunt than the mesiobuccal cusp
3. The following teeth MAY have two roots and two root canals:
a. Mandibular centrals
b. Mandibular laterals
c. Mandibular canines
d. Mesiobuccal root of the maxillary 1st molar
e. All of the above
4. The primary tooth with the most prominent cervical ridge is:
a. A
b. B
c. T
d. S
5. The apical foramen is:
a. Always at the tip of the root
b. The pathway for the nerves and blood vessels to the pulp
c. Completely closed at the time of root completion
d. Towards the distal part of the root tip
6. The order of eruption of the primary teeth is:
a. Centrals, laterals, canines, 1st molar, 2nd molar
b. Centrals, laterals, 1st molar, 2nd molar, canines
c. Centrals, laterals, 1st molars, canines, 2nd molars
d. Laterals, centrals, 1st molar, 2nd molar, canines
7. How many roots and root canals does tooth #15 have?
a. 1
b. 2
c. 3
d. 4
8. Which of the following are TRUE for the primary teeth?
1. Lacks secondary grooves
2. Molars have greater root divergence than permanent teeth
3. Are all smaller mesiodistally then permanent teeth
4. Are more opaque
a. All of the above
b. 1, 2, 4, 5
c. 2, 3, 4, 5
d. 1, 2, 3, 4
9. The occlusal pattern of the primary molars that resembles the permanent teeth is:
a. Maxillary 1st primary molar resembles the maxillary 1st permanent molar
b. Maxillary 2nd primary molar will resemble the maxillary 2nd permanent molar
c. Mandibular 1st primary molar will resemble the mandibular permanent 2nd
molar
d. Mandibular primary 2nd molar will resemble the mandibular 2nd permanent molar
10. The mesiobuccal cusp of #30 will oppose:
a. Central fossa of #3
b. Distal marginal ridge of #44
c. Mesial marginal ridge of #44
d. None of the above
Answers:
1. b
2. c
3. e or c (?)
4. d
5. b
6. c
7. c
8. b
9. b
10. b
DAO test 1
1. The clinical crown of a tooth is:
a. That part that is covered by enamel
b. That part covered by cementum
c. That part that is visible in the mouth
d. None of the above
2. The buccal surface of the tooth is that surface of the tooth that faces the:
a. Tongue
b. Cheek
c. The opposing tooth
d. The adjacent tooth
3. Tooth #30 in the Universal system is:
a. Lower left first molar
b. Lower right first molar
c. Upper left second premolar
d. Upper right second premolar
4. The mandible is the upper jaw and the maxilla is the lower jaw: T/F?
5. In the Universal numbering system, the maxillary left lateral incisor is tooth #:
a. #6
b. #7
c. #8
d. #9
e. #10
6. What terms may be interchangeable🙁on exam it was facial surface)
a. Lingual
b. Facial
c. Occlusal
d. Buccal
e. Labial
1. a and c
2. b and d
3. a and e
4. b, d, and e
7. The root and the crown of the tooth are separated by:
a. DEJ
b. The gingiva
c. CEJ
d. Cementum and Dentin
8. Name the teeth in a single quadrant:
9. Mamelons are normally found on the incisal edge of :
a. All permanent incisor teeth
b. All teeth
c. Are not normal
d. Only posterior teeth
10. What teeth have their mesial surfaces contacting:
a. #7 and #8
b. #8 and #9
c. #25 and #26
d. #6 and #7
Answers:
1. c
2. b
3. b
4. false
5. e
6. 4
7. c
8. central incisor (1), lateral incisor (1), canine (1), premolar (2) , molar (3)
9. a
10.b
DAO test 2
1. From a mesial view, the mandibular lateral and central incisors have a cervical line that:
a. Forms a straight line across the crown labio-lingually
b. Is more curved towards the incisal than on the distal
c. Is convex towards the apex
d. Is less curved towards the incisal than on the mesial
2. From the incisal view of the mandibular lateral incisor the:
a. The cingulum is towards the distal
b. The cingulum is centrally placed on the tooth
c. The cingulum is towards the mesial
d. It is very variable
3. Sharpeys fibers attach:
a. The bone to dentin
b. The cementum to dentin
c. The bone to cementum
d. Bone to gingiva
4. Which of the following tissues is the most inorganic in its makeup?
a. Pulp
b. Dentin
c. Cementum
d. Bone
e. Enamel
5. Name the cells that produce:
a. Enamel
b. Dentin
c. Cementum
d. Pulp tissue
6. Which are the centric holding cusps?
a. Buccal of the upper and lingual of the lower
b. Buccal of the lower and palatal of the upper
c. All cusps hold the occlusion
d. The lingual of the lower and the lingual of the upper
7. On the root of the mandibular lateral incisor you could find:
a. 1 or 2 canals
b. Deep depressions on the mesial and distal surfaces
c. Smooth convex labial
d. All of the above
8. Which of the following are true for the mandibular incisors?
a. Narrowest teeth in the arch
b. Central is wider than the lateral
c. Has a very prominent cingulum
d. Crowns are wider mesiodistally than faciolingually
9. When adjusting the occlusion in Centric (MI) we try to adjust which cusps for the working side of lateral occlusion?
a. Any cusp that interferes
b. The buccal of the lower and lingual of the upper
c. Buccal of the upper and lingual of the lower
d. None of the above
10. Which of the following tissues are not vital? Check all that apply?
a. Dentin
b. Bone
c. Cementum
d. Pulp
e. Gingiva
f. Enamel
Answers:
1. b
2. a
3. c
4. e
5. ameloblasts, odontoblasts, cementoblasts, fibroblasts
6. b
7. d
8. a
9. c
10.f
DAO Test 3
1. When we swallow, the teeth are usually:
a. In a non-working relationship
b. In physiological rest position
c. In MI (maximum intercuspation) position
d. In CENTRIC RELATION
2. In the lingual view of tooth #6 the crown has:
a. A lingual ridge separating the two lingual fossae
b. A CEJ which may have a flattened outline
c. Five convexities, the most prominent of which is the cingulum
d. All of the above
3. From the FACIAL view of tooth #27:
a. The mesial cusp slope is shorter than the distal cusp slope
b. The cusp tip is mesial to the center of the crown
c. The mesial outline of the tooth is straighter than the distal outline
d. All of the above
4. Which developmental groove is unique to the mandibular first premolar?
a. The mesial marginal ridge groove
b. The mesiofacial groove
c. The mesiolingual groove
d. The distolingual groove
5. ECCENTRIC movements of the mandible are?
a. Protrusive
b. Lateral protrusive
c. Lateral working
d. Lateral non-working
e. All of the above
6. Lateral movement of the mandible, having the upper and lower canines in contact is called?
a. Bennett movement
b . Centric occlusion
c. Non-working side contact
d. Working side contact
7. Which of the following is determined by tooth-to-tooth contacts?
a. Postural position
b. Centric relation
c. Maximum intercuspation
d. All of the above
8. In the three cusp variety of the mandibular second premolar:
a. The two lingual cusps are the same size
b. The ML cusp is larger than the DL cusp
c. The DL cusp is larger than the ML cusp
d. All three cusps are the same size
9. When we open our mouth wide, as in yawning:
a. The condyles first translate then rotate
b. The condyles first rotate then translate
c. They rotate and translate at the same time
d. May do any of the above
10. The CENTRIC RELATION position:
a. Is a reproducible position
b. Is a stable position that does not involve tooth contacts
c. Based on anatomical positions
d. All of the above
Answers:
1. c
2. d
3. d
4. c
5. e
6. d
7. c
8. b
9. b
10.d
DAO Test 4
1. Vertical Dimension of Rest is:
a. The distance between the maxilla and mandible when the teeth are in contact
b. Is tooth dependent
c. The distance between the upper and lower jaws when the mandible is in
physiological rest
d. None of the above
2. Mutually protected occlusion refers to:
a. In the MI position the posterior teeth support the vertical dimension and
prevent the transfer of heavy loads to the anterior teeth
b. In lateral movements the canines discluded the posterior teeth
c. In the act of incising the anterior teeth protect the posterior teeth
d. All of the above
e. None of the above
3. All are true for the maxillary 1st premolar EXCEPT:
a. There is a mesial marginal ridge developmental groove
b. Has two roots
c. The occlusal has a twisted appearance
d. May have supplemental secondary occlusal grooves
4. When viewed from the distal the facial cusp of the 2nd premolar?
a. Shorter than the lingual
b. Taller than the lingual
c. Same height as the lingual
d. May vary
5. From the occlusal view of tooth #13:
a. The occlusal form is hexagonal
b. The facial cusp slopes run diagonally across the crown
c. The cusp tips are distal to the center of the crown
d. The crown tapers slightly to the palatal
6. What developmental groove is found on both the 1st and 2nd maxillary premolars?
a. Central developmental groove
b. Mesial marginal ridge groove
c. Distal marginal ridge groove
d. Mesiolingual groove
7. Which statements are true?
a. The medial pterygoid muscles acting togther protrude the mandible
b. The lateral pterygoid muscles acting together protrude the mandible
c. The lateral pterygoid muscles acting together cause lateral movement of the mandible
e. The medial pterygoid muscles acting together cause lateral movement of the
Mandible
8. Vertical overlap:
a. Is the same as Overjet
b. Is the same as Overbite
c. Does not incisal guidance
d. All of the above
9. At what age does tooth #5 erupt?
At what age is the root completed?
10. In group Function occlusion:
a. There is contact on the non-working side
b. The buccal cusps of the posterior teeth contact in lateral movement
c. Is not a used type of occlusion
d. All of the above
Answers:
1. c
2. d
3. d
4. c
5. d
6. a
7. b
8. b
9.
10.b
DAO Test 5
1. In the occlusal view of tooth #3, the shape has two acute angles and two obtuse angles. The obtuse angles are?
a. DL and MB
b. DB and ML
c. MB and ML
d. DB and DL
2. All are true for tooth #14 except:
a. The tooth is wider Mesio-distally on the lingual than on the buccal (from the
occlusal view)
b. The height of the oblique ridge is the same as the height of the mesial and distal marginal ridges
c. The MB cusp is the largest cusp
d. The occlusal surface will have four fossae
3. Tooth #15 will differ from tooth #14:
a. The DL cusp is smaller
b. #15 does not have a cusp of carabelli
c. The apex of the MB root will line up with the furcation area
d. All of the above
4. From the facial view of tooth #3, the MB and DB cusps are:
a. The same size
b. The MB will form an acute angle and the DB will form an obtuse angle
c. The MB will form an obtuse angle and the DB will form an acute angle
d. The buccal developmental groove is in the center of the buccal surface
5. For the permanent maxillary first molar:
Calcification begins?
Tooth erupts?
Root is completed?
6. All are true except
a. All mandibular molars oppose their opposite and one tooth posterior
b. The DB cusps of tooth #30 and #31 contact the central fossa of their respective
opposite molar
c. The ML cusps of #2 and #3 extend into the central fossa of #30 and #31
d. All buccal cusps of the lower posterior teeth contact the marginal ridges of the upper posterior teeth, except the DB cusps of the lower molars
7. The Freeway space or the resting interocclusal distance is
a. Present at VDO
b. Present at VDR
c. Does not exist normally
d. Is present during MI
8. In centric occlusion the Mandibular canines will oppose?
a. Maxillary canine and lateral
b. The maxillary canine and first premolar
c. The maxillary canine only
d. None of the above
9. In right lateral working movement, the movement of the condyles:
a. The right condyle translates and the left condyle rotates
b. The right condyle rotates and the left condyle translates
c. Both rotate
d. Both translate
10. The greater the degree of Incisal Guidance
a. The greater the degree of posterior disclusion
b. Has no effect on posterior disclusion
c. The lesser the degree of posterior disclusion
d. The more the horizontal overbite has to be
Answers:
1. b
2. c
3. d
4. c
5. 0-2 yrs, 6 yrs, 8-10 yrs
6. a
7. b
8. a
9. b
10.a
DAO Test 6
1. From the buccal view of tooth #30, the root bifurcation is:
a. In line with the distobuccal developmental groove
b. Distal to the mesiobuccal developmental groove
c. In line with the mesiobuccal developmental groove
d. Mesial to the mesiobuccal developmental groove
2. From a mesial view of tooth #31:
a. The two mesial cusps are equal in height
b. The two distal cusps are taller than the mesial cusps
c. The mesiobuccal cusp is shorter and more blunt than the mesiolingual cusp
d. The mesiolingual cusp is shorter and more blunt than the mesiobuccal cusp
3. The following teeth MAY have two roots and two root canals:
a. Mandibular centrals
b. Mandibular laterals
c. Mandibular canines
d. Mesiobuccal root of the maxillary 1st molar
e. All of the above
4. The primary tooth with the most prominent cervical ridge is:
a. A
b. B
c. T
d. S
5. The apical foramen is:
a. Always at the tip of the root
b. The pathway for the nerves and blood vessels to the pulp
c. Completely closed at the time of root completion
d. Towards the distal part of the root tip
6. The order of eruption of the primary teeth is:
a. Centrals, laterals, canines, 1st molar, 2nd molar
b. Centrals, laterals, 1st molar, 2nd molar, canines
c. Centrals, laterals, 1st molars, canines, 2nd molars
d. Laterals, centrals, 1st molar, 2nd molar, canines
7. How many roots and root canals does tooth #15 have?
a. 1
b. 2
c. 3
d. 4
8. Which of the following are TRUE for the primary teeth?
1. Lacks secondary grooves
2. Molars have greater root divergence than permanent teeth
3. Are all smaller mesiodistally then permanent teeth
4. Are more opaque
a. All of the above
b. 1, 2, 4, 5
c. 2, 3, 4, 5
d. 1, 2, 3, 4
9. The occlusal pattern of the primary molars that resembles the permanent teeth is:
a. Maxillary 1st primary molar resembles the maxillary 1st permanent molar
b. Maxillary 2nd primary molar will resemble the maxillary 2nd permanent molar
c. Mandibular 1st primary molar will resemble the mandibular permanent 2nd
molar
d. Mandibular primary 2nd molar will resemble the mandibular 2nd permanent molar
10. The mesiobuccal cusp of #30 will oppose:
a. Central fossa of #3
b. Distal marginal ridge of #44
c. Mesial marginal ridge of #44
d. None of the above
Answers:
1. b
2. c
3. e or c (?)
4. d
5. b
6. c
7. c
8. b
9. b
10. b
