14. Take a look at the drawing to the right. You'll recognize the three embrasures, but one space
isn't labeled. What is that space called?
__________________ space
INSTRUCTIONS: Neatly write in your name, social security number, and your unit number of the space at which you work in lab.
Write directly on this examination. There is no separate answer sheet. Some questions require a written answer. Read carefully. Be sure to write neatly. There is a total of sixty questions. Each one is worth one point.
At the end of the examination, you will find TWO bonus 'bump-up' questions. Be sure to answer them.
IF you are one point away from the next higher grade level, one of those correct answers will be added to your score and you will be 'bumped-up' to the next higher grade level.
IF you are two points away from the next higher grade level, and you get both questions correct, you will be 'bumped-up' to the next higher grade level. The extra points will be added in only if you are a point or two away from the next level as described.
With each question, neatly circle the correct answer. No answer or two answers will be counted as an error. It is to your benefit to guess.
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01. Which of the following represents the geometric form of anterior teeth when viewed from the mesial or distal aspect?
a. square
b. triangular
c. elliptical
d. rhomboidal
e. trapezoidal
02. When an animal has many sets of teeth in is lifetime, it is
a. diphyodont.
b. reptilodont.
c. heterodont.
d. polyphyodont
e. manyteethodont.
03. In viewing the crown of a canine from the incisal aspect, one normally sees each of the following structures EXCEPT one. Which one is this EXCEPTION?
a. mesiofacial developmental depression
b. distal cusp ridge
c. cervical line
d. lingual fossa
e. cingulum
04. Examine the tooth notation numbers below. Which tooth shown is most likely to have imbrication lines?
a. # 14
b. # 5
c. # 27
d. # 17
e. # 8
05. What is the SMALLEST of the anterior teeth?
a. #9
b. #25
c. #7
d. #26
e. #23
06. The fundamental morphologic unit of enamel is the
a. ameoloblast.
b. enamel rod.
c. line of Retizius
d. hydroxyapatite crystal.
e. interprismatic substance.
07. What incisor has a groove on the lingual surface that continues down onto the root and is called the linguogingival
groove?
a. #6
b. #7
c. #8
d. #23
e. #24
08. When compared with maxillary first premolars, the central developmental groove of maxillary second premolars is
a. shorter with multiple supplementary grooves.
b. longer with multiple supplementary grooves.
c. shorter with less supplementary grooves.
d. longer with less supplementary grooves.
e. entirely absent.
09. Which one of the incisors listed below has the MOST ROUNDED INCISAL ANGLES?
a. #23
b. #24
c. #25
d. #9
e. #10
10. Fill in all nine blanks for the dental formula that describes the human permanent dentition.
I ---- C---- P---- M---- =
11. Most mammals, including humans, develop distinctive classes of teeth that are regionally specialized. What is the term that describes this condition?
_____________________________
12. What tissue covers the ANATOMICAL ROOT?
_______________________
13. A TRANSVERSE RIDGE is the union of two
_________________ ___________________. (enter both terms)
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14. Take a look at the drawing to the right. You'll recognize the three embrasures, but one space isn't labeled. What is that space called? __________________ space |
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15. What is the name of the specialized cell that forms the enamel?
_______________________
16. The odontoblastic processes, called Tomes' fibers in the old dental literature are contained within what dental tissue?
_______________________
17. You have examined a patient in the clinic prior to the fabrication of dentures. You observe that there are NO TEETH present in that patient's mouth. What is the term that describes not having any teeth present in the mouth
______________________________
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18. This is the last question on this page. Sorry, it is a bit difficult. Look at the diagram to the right. Question: What is the name of the groove pointed to by the arrow. ________________ _________________ GROOVE |
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19. Which of the following represents the largest cusp of the mandibular first molar?
a. distolingual
b. distofacial
c. mesiolingual
d. mesiofacial
e. distal
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20. Examine the drawing to the right. What kind of malocclusion is represented in this drawing? a. Class I b. Class II c. Class III d. Class IV |
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21. How much is the LEEWAY SPACE in just the upper arch?
a. 0.9 mm
b. 1.8 mm
c. 3.4 mm
d. 4.8 mm
e. 6.1 cm
22. Which one of the teeth listed below is MOST LIKELY to be variable in shape or even missing?
a. #3
b. #9
c. #27
d. #30
e. #10
23. What is the name of the structure that descends from the cusp tip of the upper permanent canine down the lingual surface to the cingulum?
a. mesial cusp ridge
b. distal cusp ridge
c. labial ridge
d. lingual ridge
e. cingulocuspalwhatchamacallit ridge
24. A mandibular canine differs from a maxillary canine in which of the following?
a. it has a cusp tip more nearly centered mesiodistally when viewed from the facial.
b. the crown is approximately the same length
c. it has a less pronounced cingulum
d. it is longer
e. the upper canine can have a bifurcated root sometimes, the lower does not.
25. The expected age of eruption for tooth #11 is
a. age 9-10 years.
b. age 11-12 years.
c. age 13-14 years.
d. age 11-12 months.
26. What kind of occlusion is defined as the maximum contact and/or intercuspation of the teeth?
_____________________ occlusion
27. What is an EXTRA or ACCESSORY tooth called?
_____________________ tooth
28. Sometimes children have spaces in their deciduous dentition that appear between the upper lateral and canine, and in the lower between the canine and the deciduous molar. What are these spaces called?
_______________________ spaces
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29. What is that linear curve called that is formed by the occlusal surfaces of the teeth when examined from the side? A drawing from the week 4 p 6 handout is shown at the right to help you. ____________ ___ ___________ (Enter all three words) |
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30. The only cusped tooth without an occlusal table (surface) is a/an ________________________.
31. Where is the wear on lower canines? It is on the ______________ surface.
32. What is the term that describes CONGENITALY MISSING TEETH?
____________________
33. The most important feature of attractiveness according to animals studies is
a. size.
b. age.
c. symmetry.
d. color.
e. weight.
34. Fluctuating symmetry (teeth larger on one side) can be caused by
a. by Selye stress.
b. by fluoride in the water.
c. by tetracyclines which also stain the teeth
35. An animal with lower incisors but no upper incisors is the
a. horse.
b. sheep.
c. narwhale.
d. elephant.
e. babirussa.
36. Which premolar occasionally presents with a 'Y' shaped occlusal groove pattern?
a. #4
b. #12
c. #28
d. #20
e. #27
37. Which premolar has a facial cusp with a triangular ridge so uniquely prominent as to frequently separate its mesial pit from its distal pit?
a. Mandibular second
b. Maxillary second
c. Mandibular first
d. Maxillary first
38. From the facial view, the maxillary first molar has its lingual root apex in line with which of the following?
a. Mesiodistal diameter midpoint
b. Mesiofacial cusp tip
c. Distofacial cusp tip
d. Distofacial line angle
e. Facial groove
39. How many cusp ridges bound the surface
of a maxillary first premolar?
a. two
b. four
c. six
d. eight
40. On the crowns of maxillary canines, which lobe includes the cusp tip?
a. middle facial
b. lingual
c. mesiofacial
d. distofacial
e. mesiolingual
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41. Examine the diagram to the right. What kind of disturbance is this? a. taurodontism b. flexion c. dilaceration d. syndontism e. iatrogenesism |
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42. Check out the diagram to the right. This condition is a. fusion. b. confusion. c. gemination. d. concrescence. e. minestroniosis. |
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43. A primary molar lacks a
a. dentinoenamel junction.
b. apical foramen.
c. cervical ridge.
d. cervical line.
e. root trunk.
44. The Carabelli cusp is found where on a deciduous second maxillary molar?
a. it isn't found on deciduous molars
b. mesiolingual cusp
c. distolingual cusp
d. mesiobuccal cusp
e. distobuccal cusp
45. In a cervical cross-section, the root of a mandibular canine is described as
a. roughly conical.
b. triangular.
c. flattening in a mesiodistal direction.
d. broader mesiodistally on the lingual than on the facial.
e. shaped like a hot dog, Chicago style
46. We spoke about theories of tooth eruption. Look at the theories listed below and select the one theory that is an ACCEPTABLE theory.
a. Vascular pressure and blood vessel thrust causes tooth eruption.
b. Pulpal pressure and pulpal growth explain tooth eruption.
c. Traction by periodontal fibroblasts accounts for tooth eruption.
d. Alveolar bone remodeling is responsible for tooth eruption.
47. Butler's Field Theory/Concept of the Morphogenetic Field is used to explain
a. tooth eruption.
b. heterodonty.
c. homodonty.
d. sexual dimorphism.
e. polyphyodonty.
48. Hutchinson's Incisors are caused by
a. congenital syphilis.
b. HIV infection.
c. malaria or Guinea worm.
d. measles.
49. Abused children come from
a. primarily single parent households headed by a father.
b. primarily single parent households headed by a mother.
c. the lower socioeconomic levels of our society.
d. just certain ethnic groups and not others.
e. all socio-economic, ethnic, and cultural backgrounds.
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50. Examine the root section shown at the right. It is most likely a mid-root section of a a. maxillary first premolar. b. maxillary first permanent molar. c. mandibular first permanent molar. d. mandibular first deciduous molar. |
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51. The SMALLEST CUSP on the mandibular first permanent molar is the
a. mesiolingual cusp.
b. distolingual cusp.
c. mesiobuccal cusp.
d. distobuccal cusp.
e. distal cusp.
52. Alternation is when
a. each lower tooth relates to the upper tooth of its own number and the one toward the distal.
b. each lower tooth relates to the upper tooth of its own number and the one in front.
c. each upper tooth relates to the lower tooth of its own number and the one in front.
d. each upper tooth relates to the lower tooth of its own number and the second one in front.
53. Which root in the maxillary first permanent molar often has a second accessory root canal?
a. mesiobuccal root
b. distobuccal root
c. lingual root
d. distal root
e. occlusal root
54. What is the highest and sharpest cusp on the lower first deciduous molar? (Read this question again carefully.)
a. mesiobuccal cusp
b. distobuccal cusp
c. distolingual cusp
d. mesiolingual cusp
55. As compared with the permanent teeth, the crowns of the deciduous teeth are
a. narrower mesiodistally in comparison with their crown length in the anterior teeth.
b. about the same size, but more bell-shaped cervically.
c. more bulbous and constricted.
d. larger.
e. darker in color.
56. In general, the root of a deciduous tooth is completely formed in just about ____________________ after its
eruption into the mouth.
a. 6 months
b. one year
c. two years
d. three years
57. This deciduous molar most resembles its permanent successor:
a. mandibular first
b. mandibular second
c. maxillary first
d. maxillary second
58. How many root canals are there in the lower first permanent molar and where are they?
a. two canals: mesial root one, distal root one
b. four canals: mesial root two, distal root two
c. three canals: mesial root one, distal root two
d. three canals: mesial root two, distal root one
59. Where does the cervical line have its greatest depth of curvature?
a. mesial aspect
b. distal aspect
c. they are both the same
60. Which of the following is the first succedaneous tooth?
a. mandibular first molar
b. maxillary lateral incisor
c. mandibular central incisor
d. maxillary central incisor
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You made it!. Now, look back over your exam. Did you neatly write your name, social security number, and regular unit number on the front of the exam? To do so is worth an extra free point!
*****Here are the two extra credit questions:
001. At age 9 years, how many deciduous teeth remain in the mouth?
a. 8
b. 12
c. 16
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002. What premolar is this? a. maxillary first b. mandibular first c. mandibular second |
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That is it! Best wishes to you for the Holidays! Drs. Johnson, Luksha, Heiss and Kolar