Tests for practical training (course 3, orthodontics)


  1. From which of the branches arches upper and lower jaws are developed?

    1. Second

    2. First

    3. Third

    4. Fourth

  2. How long does the period of fertilization last?

    1. from fertilization through eight week of development

    2. from fertilization through nine week of development

    3. from fertilization through seven week of development

    4. from fertilization through ten week of development

  3. When do branchial arches begin to develop?

    1. during second week in utero

    2. during fourth week in utero

    3. during third week in utero

    4. during fifth week in utero

  4. From what week of pregnancy the facial part of the head begins to form?

    1. 4th week

    2. 3rd week

    3. 2nd week

    4. 5th week

  5. When does the separation of the oral cavity begin due to the formation of the

hard and soft palate?

    1. from the 6th – 7th week of the intrauterine development

    2. from the 7th – 8th week of the intrauterine development

    3. from the 5th – 6th week of the intrauterine development

    4. from the 4th – 5th week of the intrauterine development

  1. From what processes the facial part develop?

    1. 1 frontal, 2 nasal, 2 maxillary and 1 mandibular

    2. 2 frontal, 2 nasal, 2 maxillary and 2 mandibular

    3. 1 frontal, 2 nasal, 2 maxillary and 2 mandibular

    4. 2 nasal, 2 maxillary and 2 mandibular

  2. The primary palate arises from:

    1. the fusion of the two lateral nasal prominences

    2. the fusion of the two medial nasal prominences

    3. the maxillary prominences

    4. nasolacrimal grooves

  3. What anatomical structures are formed from the maxillary prominences?

    1. most of the maxilla (upper cheek region)

    2. the lateral portion of the upper lip

    3. the lateral portion of the lip and most of the maxilla (upper cheek region), including the secondary palate

    4. the primary and the secondary palate

  4. What does the frontonasal prominence form?

    1. the forehead and the dorsum and bridge of the nose

    2. the forehead

    3. the dorsum of the nose

    4. the bridge of the nose

  5. From what structures does the entire upper lip come from?

    1. the medial nasal prominences

    2. the medial nasal prominences and the maxillary prominences

    3. the maxillary prominences

    4. the lateral nasal prominences and the maxillary prominences

  6. How is called the position of the lower jaw in the newborn child?

    1. physiological prognathia

    2. physiological retrogenia

    3. physiological retrognathia

    4. physiological progenia

  7. What is the distance between alveolar processes of the upper and lower jaws in the sagittal plane in the newborn child?

    1. 2-3 mm

    2. 1-2 mm

    3. 5-6 mm

    4. 10 mm

  8. What is the vertical fissure between alveolar processes in the newborn child?

    1. 1.5-2 mm

    2. 2.5-2.7 mm

    3. 3.5-4 mm

    4. 4-4.5 mm

  9. To what period of life the correlation of jaws in a newborn child is normalized?

    1. during the period of primary incisors eruption

    2. during the period of the first primary molars eruption

    3. during the period of the second primary molars eruption

    4. up to the eruption of the first permanent molars

15. The growth of the lower jaw in the region of symphysis finishes because of its ossification during?

a. 6-7 month of life

  1. 7-8 month of life

  2. 1st year of life

  3. 2nd year of life

  1. What peculiarities of the oral cavity in the newborn child help the child to breath, suck and swallow simultaneously?

  1. flat palate

  2. physiological retrogenia

  3. comparatively big tongue

  4. the high position of the aperture of larynx and its junction only with the nasal cavity

17. Undeveloped intra-articular disk and glenoid fossa of the TMJ of the newborn child create the favorable condition for movement of the lower jaw in?

a. transversal pane

b. sagittal plane

c. vertical plane

d. sagittal and vertical planes

  1. How many teeth follicles are there in one jaw in the newborn child?

a. 8

b. 6

c. 4

d. 10

19. Physiological retrogenia is:

a. mesial position of the lower jaw

b. distal position of the lower jaw

c. neutral position of the lower jaw

d. distal position of the upper jaw

20. A newborn child simultaneously can:

a. masticate and breath

b. suck and swallow

c. swallow and masticate

d. breath, suck and swallow

21. Primary dentition lasts from?

a. 6 months to 3 years

b. 3 months to 2-2,5 years

c. 6 months to 5-6 years

d. 6 months to 7 years

22. On what periods primary dentition is divided?

a. formation and stabilization

b. formation and senescence

c. formation, stabilization and senescence

d. stabilization and senescence

23. How is called the first period of primary dentition?

a. stabilization

b. formation

c. senescence

d. growing

24. The first period of primary dentition lasts:

a. from 6 months to 2-2.5 years

b. from 6 months to 3.5 years

c. from 4 months to 2 years

d. from 3 months to 3.5 years

25. What is the sequence of eruption of the primary teeth?


a. I, II, V, IV, III

b. I, II, IV, III, V

c. I, II, III, V, IV

d. I, III, II, IV, V

26. When the first primary incisors are erupted?

a. at 4-6 months

b. at 8-10 months

c. at 6-8 months

d. at 10-12 months

27. Eruption of what primary teeth provides the first physiological increasing of bite (by Schwartz)?

a. central incisors

b. lateral incisors

c. canines

d. first primary molars

28. At natural feeding the lower jaw shifts:

a.in the transversal plane

b. in the vertical plane

c. in the sagittal plane

d. in the vertical and sagittal planes

29. What pathological bite can be formed when 1-year-old child sleeps on a high pillow?

a. distal bite

b. mesial bite

c. open bite

d. crossbite

30. An artificial feeding may lead to?

a. dystopia

b. distal bite

c. adentia

d. malposition of teeth

31. The third period of primary dentition lasts from?

a. 3 to 5 years

b. 4 to 6 years

c. 3 to 6 years

d. 3 to 4 years

32. On what periods primary dentition is divided?

a. formation and stabilization

b. formation and senescence

c. formation, stabilization and senescence

d. stabilization and senescence

33. How is called the third period of primary dentition?

a. the period of stabilization of primary dentition

b. the period of formation of primary dentition

c. the period of senescence of primary dentition

d. the period of growing of primary dentition

34. The parents of the 5-year-old girl came to the dentist for the consultation. During examination a doctor revealed that upper primary frontal teeth overlap the lower primary frontal teeth. What should the contact be between the primary frontal teeth in this period of primary dentition?

a. the direct contact between incisors

b. the upper incisors should overlap the lower incisors in 1/3 of the crown

c. the upper incisors should overlap the lower incisors in ¼ of the crown

d. the upper incisors should overlap the lower in incisors ½ of the crown

35. What is the sequence of eruption of the primary teeth?

a. I, II, V, IV, III

b. I, II, IV, III, V

c. I, II, III, V, IV

d. I, III, II, IV, V

36. What is the form of the dental arches in the period of primary dentition?

a. ellipse.

b. half-round

c. parabola.

d. saddlelike.

37. Parents of a 4.5- year-old child complain of a suction of a thumb during sleeping.

What anomaly of occlusion it can lead for?

a. open bite

b. cross bite

c. mesial bite

d. deep bite

38. What should be the main signs in the oral cavity in the third period of primary dentition?

a. Tsylinskyi’s symptom

b. physiological attrition of the cusps and incisive edges of the primary teeth, physiological spaces between primary teeth

c. Tsylinskyi’s symptom, physiological attrition of the cusps and incisive edges of the primary teeth, physiological spaces between primary teeth

d. physiological spaces between primary teeth

39. What pathological bite can be formed when 5-year-old child sleeps on a high pillow?

a. distal bite

b. mesial bite

c. open bite

d. crossbite

40. If the spaces between the primary teeth are appeared during the third period of the primary dentition? What is the cause of this sign?

a. it is a result of the dental arches growth

b. as a result of harmful habit - thumb sucking

c. as a result of infantile type of swallowing

d. as a result of mouth breathing

41. Mixed dentition lasts from?

a. 6 to 11 years

b. 6 to 12 years

c. 7 to 11 years

d. 5 to 4 years

42. On what periods mixed dentition is divided in?

a. periods of formation and stabilization

b. periods of formation and senescence

c. early and late period

d. period of stabilization and senescence

43. What is the sequence of eruption of the permanent teeth?

a. 6, 1, 2, 3, 4, 5, 7

b. 6, 1, 2, 4, 3, 5, 7

c. 1, 2, 3, 4, 5, 6, 7

d. 6, 1, 2, 4, 5, 3, 7

44. When the first premolars should be erupted?

a. at 9 years

b. at 8 years

c. at 12 years

d. at 11 years

45. The parents of the 9-year-old girl came to the dentist for the consultation. During examination a doctor revealed that the upper primary molars from the left side are prematurely lost. It can be the cause of :

a. mesial bite

b. open bite

c. deep bite

d. mesial drifting of the upper left permanent molar

46. When the second premolars should be erupted?

a. at 9 years

b. at 8 years

c. at 11-12 years

d. at 7 years

47. Eruption of what permanent teeth provides the third physiological increasing of bite (by Schwartz)?

a. central incisors

b. lateral incisors

c. first permanent molars

d. second permanent molars

48. Parents of a 8.5- year-old child complain of suction of a tongue. During examination it was revealed the infantile type of swallowing. What anomaly of occlusion it can lead for?

a. open bite

b. cross bite

c. mesial bite

d. deep bite

49. Jaw growth during the mixed dentition is conditioned by next factors:

a. biological tendency of growth

b. eruption of the permanent teeth

c. normal function of the mastication muscles

d. biological tendency of growth, eruption of the permanent teeth, normal function of the mastication muscles

50. During the examination of the 10-year-old girl it was revealed the next present erupted permanent teeth: first permanent molars, central and lateral permanent incisors. Determine the chronological and dental age?

a. chronological age – 10 years, dental age – 10 years

b. chronological age – 7 years, dental age – 10 years

c. chronological age – 10 years, dental age – 8 years

d. chronological age – 10 years, dental age – 9 years

51. What is the depth of Spee’s curve?

a. 2 mm

b. 5 mm

c. 4 mm

d. 6 mm


52. Permanent dentition begins from?

a. the eruption of the first permanent molar

b. the eruption of the first premolar

c. the eruption of the first permanent canine

d. the last primary tooth falls

53. Permanent dentition is divided into?

a. two periods

b. three periods

c. four periods

d. five periods

54. What is the sequence of eruption of the permanent teeth?

a. 6, 1, 2, 3, 4, 5, 7

b. 6, 1, 2, 4, 3, 5, 7

c. 1, 2, 3, 4, 5, 6, 7

d. 6, 1, 2, 4, 5, 3, 7

55. What does the 2nd key of occlusion by Andrews mean?

a. regular angulation in degrees

b. regular torque in degrees

c. preserved teeth rotation around the vertical axis

d. the mesial line between the central incisors of both jaws coincides

56. The parents of the 12-year-old girl came to the dentist for the consultation. During examination a doctor revealed that the upper permanent canines are located above the occlusal plane. How we call such position of the teeth?

a. infra position

b. supra position

c. transposition

d. mesial position

57. What is the depth of Spee’s curve?

a. 2 mm

b. 4 mm

c. 5 mm

d. 6 mm

58. Eruption of what permanent teeth provides the third physiological increasing of bite (by Schwartz)?

a. central incisors

b. lateral incisors

c. first permanent molars

d. second permanent molars

59. A 13-year-old girl has a harmful habit of suction the lower lip. What anomaly of occlusion it can lead for?

a. open bite

b. distal bite

c. mesial bite

d. deep bite

60. Overbite is?

a. the distance between incisors in sagittal plane

b. the overlapping between upper and lover canines

c. the vertical overlapping between upper and lover anterior teeth

d. the type of open bite

61. In a 13-year-old girl was revealed adentia: the 35 tooth is absent. There are spaces between the 34 and 33, the 34 and 36 teeth, the 34 tooth is rotated in relation to the lingual-vestibular direction on 30 degrees. Define, what anomaly position the 34 tooth is occupies?

a. tortoversion and distal position.

b. distal position.

c. mesial position.

d. vestibular position.

62. What forms of physiological occlusion are there distinguished?

a. orthognathic, straight, biprognathic, deep bite and opisthognathic

b. orthognathic, straight, biprognathic, and opisthognathic

c. orthognathic, straight, biprognathic, open bite and opisthognathic

d. orthognathic, straight, biprognathic, mesial bite and opisthognathic

63. During intra-oral examination of the 9-year-old boy it was revealed that canines and incisors of t he both jaws are inclined into oral cavity. What is the type of the physiological occlusion?

a. orthognathic bite

b. biprognathic bite

c. straight bite

d. opisthognathic bite

64. What is the overjet in the normal occlusion?

a. 1.5-2 mm

b. 5 mm

c. 4 mm

d. 6 mm

65. What does the 2nd key of occlusion by Andrews mean?

a. regular angulation in degrees

b. regular torque in degrees

c. preserved teeth rotation around the vertical axis

d. the mesial line between the central incisors of both jaws coincides

66. The parents of the 12-year-old girl came to the dentist for the consultation. During examination a doctor revealed that the upper permanent canines are located above the occlusal plane. How we call such position of the teeth?

a. infra position

b. supra position

c. transposition

d. mesial position

67. What is the depth of Spee’s curve?

a. 2 mm

b. 4 mm

c. 5 mm

d. 6 mm

68. Eruption of what permanent teeth provides the third physiological increasing of bite (by Schwartz)?

a. central incisors

b. lateral incisors

c. first permanent molars

d. second permanent molars

69. A 13-year-old girl has a V-shaped upper dental arch. What shape of the upper dental arch should be in the norm?

a. ellipse.

b. half-round

c. parabola.

d. saddlelike.

70. Overbite is?

a. the distance between incisors in sagittal plane

b. the overlapping between upper and lover canines

c. the vertical overlapping between upper and lover anterior teeth

d. the type of open bite

71. In a 13-year-old girl was revealed adentia: the 35 tooth is absent. There are spaces between the 34 and 33, the 34 and 36 teeth, the 34 tooth is rotated in relation to the lingual-vestibular direction on 30 degrees. Define, what keys of normal occlusion by Andrews are changed?

a. IV and V

b. V and VI

c. III and V

d. III and IV

72. What does dispensary system provide?

a. treatment of diseases

b. prevention of diseases

c. early detection, treatment and prevention of diseases

d. organization of systemic observation of patient

73. During intra-oral examination of the 9-year-old boy it was revealed that relationship of the first permanent molars is Angle class I. He has correct lip closure, no abnormal functions, To what dispensary group should we refer such patient?

a. second group

b. fourth group

c. first group

d. third group

74. From how many stages health examination consists of?

a. five stages

b. four stages

c. six stages

d. three stages

75. What measures the first stage of health examination include?

a. specialized examination of every child

b. distribution children into groups

c. registration of all children

d. studying the effectiveness of orthodontic health examination

76. The parents of the 12-year-old girl came to the dentist for the consultation. During examination a doctor revealed that the upper permanent canines are located above the occlusal plane. How we call such position of the teeth and to what dispensary group should we refer the patient?

a. infra position, third group

b. supra position, third group

c. transposition, second group

d. mesial position, second group

77. A 9-year-old girl has correct lip closure, no abnormal functions, and normal occlusion. To what dispensary group should we refer the patient?

a. first group

b. fourth group

c. second group

d. third group

78. The fourth dispensary group includes children with?

a. correct lip closure, no abnormal functions, and normal occlusion

b. evident changes in the dento-alveolar apparatus

c. risk factors

d. not severe malocclusions, caused by functional changes

79. A 13-year-old girl has a V-shaped upper dental arch. Orthodontists found out from the anamnesis that the patient had mouthbreathing. What shape of the upper dental arch should be in the norm? To what dispensary group should we refer the patient?

a. ellipse, third group

b. half-round, second group

c. parabola, second group

d. saddlelike, third group

80. Children of what dispensary group needs specialized help and complex treatment?

a. first group

b. fourth group

c. second group

d. third group

81. In a 13-year-old girl was revealed: 34 tooth is rotated in relation to the lingual-vestibular direction on 30 degrees. Define, what keys of normal occlusion by Andrews is changed? To what dispensary group should we refer the patient?

a. IV, third group

b. V, third group

c. III, third group

d. III, second group

  1. How many Andrews’ occlusion keys are there?

a. Two

b. Four

c. Six

d. Seven

  1. What does the 2nd Andrews’ occlusion key mean?

a. Regular angulation in degrees

b. Regular torque in degrees

c. The absence of teeth rotation

d. The same vertical midline between central incisors

  1. How many planes do we use in orthodontics?

a. One

b. Two

c. Three

d. Four

  1. In which plane can we use the Angle’s classification?

a. Vertical

b. Horizontal

c. Saggital

d. Transverse

  1. What types of individual malpositions in frontal plane do you know?

a. Infra occlusion, supra occlusion

b. Lingual version, labial version

c. Mesio-version, disto-version

d. Diastema

  1. What is overjet?

a. The vertical overlapping between upper and lover anterior teeth

b. The distance between upper central incisors

c. The horizontal overlapping between upper and lover anterior teeth

d. The overlapping between upper and lover molars

  1. What is the name of condition when maxillary or mandibular frontal teeth are anterior to the normal positon?

a. Cross bite

b. Overbite

c. Supra position

d. Protrusion

  1. What types of the bite in saggital plane do you know?

a. Lingual version, labial version

b. Edge to edge bite

c. Open bite, deep bite

d. Mesial bite, distal bite

  1. What are the general risk factors?

a. Heredity, environmental factors, dietary problems

b. Congenital defects

c. Heredity, dental caries

d. Anomalies of tooth eruption

  1. Are the anomalies of teeth number a risk factors of malocclusion development?

a. No

b. Yes, it’s a general risk factor

c. Yes, it’s a local risk factor

d. No right answer