1.

)Torque in orthodontics refers to:

-the change in labiolingual inclination of teeth

2.)In Stationary anchorage, anchorage is obtained from:

a. More stable teet d. Bodily movement

b. Extra oral
c. Teeth from the opposite
area

3.)Which of the following is related to occipital anchorage?

a. Intra oral d. Bodily movement of the

b. Tipping anchor
c. Extraoral force
4.)Closing of a midline diastema by using an appliance is an example of

a. Reciprocal anchorage c. Reinforced anchorage

b. Compound anchorage d. Stationary anchorage

5.)Reciprocal anchorage is exhibited by:

a. Split expansion appliance c. Intraarch elastics

b. Intermaxillary elastics d. A and B

6.)The greatest advantage of using extraoral anchorage is that:

a. More force can be applied
b. It has a direct reciprocal action on opposing arch
c. It permits posterior movement of teeth in one arch w/out disturbing the
opposing arch adversely
d. NOTA

7.)It is the normal response of the periodontal space to orthodontic treatment:

a. Widen c. Narrow
b. Shorten d. Elongate

8.)A single force applied at which point of a tooth will allow complete translation of
the tooth

a. At the apex d. At the the center of

b. At the incisal edge rotatio
c. At the the center of
resistance

9.)The first reaction that takes place when an orthodontist attempts active tooth
movement with a removable appliance is:
a. Pressure and tension zones form in the periodontal ligament
b. Force is applied on the tooth
c. Osteoclasts treats undermining resorption
d. Tooth moves by arrest resorption

10.)Anchorage obtained from nape of the neck represents:

a. Occipital anchorage b. Cervical anchorage

 c. Facial anchorage d. Parietal anchorage

11.)A band and loop space maintainer is a:

-Unilateral, fixed, non-functional

12.)A distinctive clinical manifestation of a successful rapid maxillary expansion is:

a. Anterior crossbite c. Midline diastema

b. Posterior crossbite d. Open bite

13.)Simple retraction of maxillary incisors using maxillary molars as anchorage is an

example of:

a. Simple anchorage c. Stationary anchorage

b. Reciprocal anchorage d. Intermaxillary anchorage

14.)Hyalinization in orthodontic movement means:

a. A cell free zone histologically similar to hyaline appearance
b. Change to hyaline cartilage
c. Lamina dura converts to hyaline cartilage
d. Pdl changes into hyaline cartilage
15.)Which characteristics of orthodontic wires describe its energy storage capacity?

a. Range c. Resiliency
b. Formability d. Proportional limit

16.)Which of the following orthodontic wires has the LEAST modulus of elasticity?

a. NITI c. Stainless steel

b. Beta-titanium d. Co-Cr-Ni

17.)Leeway space is a calculated difference between primary and permanent tooth size.
There is typically more leeway space in the maxillary arch.
-First statement is true, second statement is false (maxi space: 1.5mm ; mandi
space: 2.5mm)

18.)An 8 year old patient and her mother come to your clinic. The main chief complaint
is that her child’s overbite makes her look like a bug's bunny, her front teeth hide
her lower lip. What is wrong with the mother’s statement?
a. She mixed up overbite and overjet
b. She mixed up overbite and open bite
c. She mixed up overbite and negative overjet
d. She mixed up overjet and open bite

19.)Primary 1st molar relationships are known as:

-Step relationship

20.)“Primate space” in the primary dentition is found in which TWO locations:

-In the maxillary arch, primate space is found between lateral incisors and
canines

21.)All of the following are signs of incipient malocclusion EXCEPT:

-Larger than normal primary teeth
22.)An 18-year old patient presents to your clinic complaints of crowding at his lower
anterior incisors. You explain that this is because of:

a. Late mandibular growth c. Maxillary tooth size

b. Pressure from the 3rd excess
molars d. Trauma

23.)At age 9, you christopher needs his tooth #30 extracted due to caries. What is the
proper space maintainer to be used?
-Distal shoe

24.)During serial extraction cases, which teeth are not typically removed?
a. Primary canines (C)
b. Primary first molars (D)
c. Permanent first molars
d. Primary 2nd molar

25.)All of the following are materials used for archwires except one. Which one is the
exception?

a. SS d. Vitalium
b. Beta-titanium
c. NITI
26.)Which appliances are probably the most widely used today by orthodontists?

a. Begg c. Universal
b. Edgewise d. NOTA

27.)All of the following are fixed orthodontic appliances except one. Which one is the
exception?

a. Edgewise c. Hawley retainers

b. Frankel appliance d. Schwarts appliance

28.)All of the following are functional appliances except one. Which one is the
exception?

a. Frankel c. Twin block

b. Bionator d. Quad helix

29.)In orthodontic therapy, adult patients in comparison to adolescent patients:

a. Need less periodontal maintenance during comprehensive orthodontic
treatment
b. Are more compliant
c. Are less concerned with esthetics
d. Are more prone to decalcification stain on enamel

30.)What is the most common cause of anterior crossbites of maxillary teeth in young
children?

a. Oral habits d. Prolonged retention of

b. Trauma to the incisors primary teeth
c. Jaw size discrepancies

31.)In orthodontic therapy, adult patients in comparison to adolescent patients:

 e. Need less periodontal maintenance during comprehensive orthodontic
treatment
f. Are more compliant
g. Are less concerned with esthetics
h. Are more prone to decalcification stain on enamel

32.)All of these syndromes are associated with supernumerary teeth except:

a. Gardner d. Cleidocranial Dysistosis

b. Down syndrome e. All of the above
c. Ectodermal dysplasia

33.)What is the most efficient way to move teeth, reinforce anchorage, and avoid
friction to the appliance system?
appliance system?

a. Apply gentle constant d. Bond magnets to individual

force. teeth.
b. Incorporate springs into e. All of the above
archwire.
c. Incorporate interarch
elastic.

34.)A 5-year old girl has her molar occlusion on a flush terminal plane. What is most
likely her occlusion at age 10 with proper adequate space management?
-CLASS 1

35.)Methods employed in orthodontic treatment to align a crowded dentition include:

a. Extraction of teeth d. Interproximal reduction of

b. Expansion of arches teeth
c. Distalization of teeth e. All of the above

36.)Which one of the following statements is true about primate space in the primary
dentition?
-Primate space is located between the canine and first molar in the mandibular
arch.

37.)A 10 year old girl presents in the clinic requesting to close her diastema. Upon
oral examination, you noticed that the patient has high frenal attachment or the
crestal type of frenal attachment. What is the correct treatment for this patient?
a. Perform frenectomy prior to orthodontic treatment and after max canines
erupt.
b. Perform frenectomy prior to orthodontic treatment and before max canines
erupt.
c. Perform frenectomy after orthodontic treatment and after max canines
erupt.
d. Perform frenectomy afte orthodontic treatment and before max canines
erupt.

38.)Which of the following is false about head gears?

a. Headgears is typically used in skeletal class II cases
b. Headgears need to be worn 10-14 hours per day to be effective
c. Headgears can be used to adult patients
d. All of the above
39.)Which is the most common site of supernumerary tooth?

a. Distal to the third molars c. Between central and

b. Between the central lateral incisors
incisors d. Incisors

40.)Which of the following is used to which of the following is used to maintain the
space of one prematurely missing primary molar?

a. Lingual holding arch d. A and B

b. Distal shoe e. B and C
c. Band and loop

41.)A pediatric patient has a premature loss of A but tooth b is present and tooth #3
has not erupted yet. What is the best space maintainer for this situation?

a. Hawley with finger spring c. Distal shoe

b. Hawley without finger d. Nance appliance
spring

42.)When is a nance appliance indicated?

a. Bilateral loss of primary maxillary molars
b. Bilateral loss of primary mandibular molars
c. Loss of primary morals
d. To control thumbsucking behaviour

43.)Name given to the line connecting the upper border of the external auditory meatus
and the lower orbital rims.

a. Frankel plane d. Sagittal plane

b. Frankfort plane e. Angle plane
c. SN Plane

44.)where is nasion found on the lateral cephalometric radiograph?

-Anterior point of the intersection between the nasal and frontal bones.

45.)What are the properties of an ideal archwire material?

a. High strength d. High formability

b. Low stiffness e. AOTA
c. High range

46.)Which of the following alloys is not currently used in archwires?

a. Nickel, and Titanium c. Beta titanium

b. Copper, Tin, and Titanium d. Stainless steel and cobalt

47.)Which of the following is not a possible sequelae associated with orthodontic

treatment?
a. Root resorption with fast and prolonged treatment
b. Development of gingivitis
c. Xerostomia
d. Decalcification of enamel around brackets/bands
48.)Which is the normal relationship between primary molars?

a. Flush terminal plane c. Distal step

b. Mesial step d. Class II

49.)The distal step relationship in primary molars often translates to which

classification of occlusion in the permanent molars?

a. Class I c. Class III

b. Class II d. Class IV

50.)Which of the following are considered systemic causes for delayed tooth eruption?

a. Hereditary gingival c. Rickets

fibromatosis d. aota
b. Down syndrome