WorksheetsBlank Quiz
Total questions: 21
Worksheet time: 11mins
Name
Class
Date
1.
Which type of radiograph is used to determine facial asymmetry?
a)
a- Lateral cephalometric radiograph
b)
b- Panoramic radiograph
c)
c- Occlusal and bite-wing radiograph
d)
d- Postero-anterior radiograph
2.
In normal facial proportions:
a)
a- Upper lip height = ¼ LAFH
b)
b- UAFH = MAFH = LAFH
c)
c- Width of the non-relaxed mouth = interlimbus width
d)
d- All of the above
3.
The panoramic radiograph is used to determine the maxillo-mandibular
relationship in the anteroposterior direction.
a)
a- True
b)
b- False
4.
What information is not obtained from a lateral cephalometric
radiograph?
a)
Sagittal jaw relationship
b)
vertical jaw relationship
c)
Incisor inclination
d)
Facial asymmetry
5.
Diagnosis in orthodontics implies
a)
The determination of abnormality
b)
b- The gathering of data
c)
c- The grouping of similar cases
d)
d- Taking full mouth radiographs
6.
Examination in orthodontics implies:
a)
a- The determination of abnormality
b)
b- The gathering of data
c)
c- The grouping of similar cases
d)
d- Taking full mouth radiographs
e)
e- None of the above
7.
Which of the following statements about the hand wrist radiographs is
incorrect:
a)
a- It helps not only in assessing the growth of an individual but also helps to predict future skeletal maturation rate and status
b)
b- It is based upon the fact that the numerous small bones of hand, like carpals,metacarpals, etc show a predictable and scheduled pattern of appearance, ossification and union from birth to maturity
c)
c- It gives us a general idea regarding the amount and direction of growth
d)
d- It helps in determination of skeletal maturity status prior to treatment of skeletal malocclusion such as skeletal class II or skeletal class III maloclusion
8.
The mandibular plane angle could be:
a)
a- Slightly downward and forward
b)
b- Mainly downward
c)
c- Mainly forward
d)
d- All of the above
9.
In orthodontic study models the bases of the maxillary and the
mandibular casts are:
a)
a- Parallel to each other
b)
b- At 90° to each other
c)
c- At 30° to each other
d)
d- At 110° to each other
10.
Class I malocclusions share what basic characteristic:
a)
The midface is concave
b)
b- A harmonious skeletal profile
c)
c- The midface is convex
d)
d- None of the above
11.
The medico-dental history form:
a)
a- Is a questionnaire which may be completed either online or in office
b)
b- The in-office history forms should be completed by orthodontist
c)
c- If the patient is younger than 18 years old, a section on genetics is to be added
d)
d- All of the above
12.
The pretreatment orthodontic study casts are essential for many reasons
such as:
a)
Orthodontic diagnosis
b)
b- Case presentation and evaluation of treatment progress
c)
c- Transfer records and research studies
d)
d- All of the above
13.
Radiographic cephalometry was independently introduced by:
a)
Angle and Lischer
b)
b- Dewey and Roth
c)
c- Broadbent and Hofrath
d)
d- Andrews and Roth
14.
the vertical dimension of the face determined by the following except
a)
Y axis angle
b)
FMA
c)
MMPA
d)
Rule of Fifth
15.
the upward rotation of mandible leads to
a)
open bite
b)
deep bite
c)
posterior crossbite
d)
increased the vertical dimension
16.
the angle of facial convexity equals 18 degree indicates
a)
mandible retrusion
b)
prognathic chin
c)
class III
d)
concave profile
17.
zero meridian line determines
a)
the vertical relation of the jaws
b)
the position of lips
c)
the sagittal relation of jaws
d)
TMJ position
18.
the unilateral extraction may lead to shift of facial midline
a)
true
b)
False
19.
occiput is a point that
a)
present on the frontal bone
b)
determine the AP relation
c)
determine the face type
d)
intersection of Maxilla and mandible
20.
occlusal cant determined by
a)
lateral photos
b)
frontal photos
c)
latera ceph
d)
periapical photos
21.
2 sisters patient came to your clinic need orthodontic treatment after making study casts for them we found that the first sister who aged 21 years had on maxilla SN equal 75 mm and SA 90mm and overjet 12 on mandible SN 60mm and SA 53mm and depth of curve of spee 7 mm (a) the second one was 9 years old the MD width of lower incisors was 25 mm analyze the space for older girl and classify the problem if present ... calculate the Space required for the younger one
100 %
