2025 QUESTIONS AND ANSWERS
What is the goal of cephalometrics - ANS to relate the 5 major components of the face:
1) Cranuim/Cranial base
2) Skeletal Maxilla
3) Skeletal Mandible
4) Maxillary Dentition and alveolar processes
5) Mandibular Dentition and alveolar processes
Historical perspective of cephalometrics - ANS To study *longitudinal* facial growth patterns
in the craniofacial complex
Reference plane for cephalometric analysis is ________plane for orientation and
superimposition - ANS FH (Frankfort Horizontal)
-Upper ridge of the external auditory meatus to the most inferior portion of the orbit should be
parallel to the floor
anatomical landmarks - ANS Readily recognizable points on a cephalometric radiograph or
tracing, representing certain hard or soft tissue anatomical structures
constructed landmarks - ANS Readily recognizable points on a cephalometric radiograph or
tracing, representing intersections of lines
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, Angular measurements is determined at the intersection of... - ANS two lines
Linear measurements are determined by the deviation of a.... - ANS point from a line
Name this anatomical landmark:
The most superior point of the outline of the external auditory meatus - ANS Pourion (Po)
-When the anatomic porion cannot be located reliably, the superior-most point of the image of
the ear rods ("machine porion") sometimes is used instead
Is the porion...
a) midsagittal
b) unilateral
c) bilateral - ANS c) bilateral
What is located at almost the same level as the mandibular condyle - ANS External auditory
meatus (EAM)
The external auditory meatus is almost __________ in shape - ANS elliptical
The EAM lies almost at the same vertical plane as the .... - ANS basion and odontoid process
of the vertebra
the internal auditory meatus is ______ in shape - ANS round
Describe the location of the internal auditory meatus - ANS posterior and superior to the
external auditory meatus
Name this anatomical landmark:
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The geometric center of the pituitary fossa - ANS Sella turcica (S)
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