CEPHALOMETRIC ANALYSIS EXAM
2025 QUESTIONS AND ANSWERS
Cephalometrics - ANS uses a set of measurements from a lateral cephalometric radiograph
to evaluate a patient's face, teeth and skeleton. Information is available in two planes of space:
ANTEROPOSTERIOR and VERTICAL. The patient's individual measurement are compared to
standard measures available according to gender, age and race (when available).
Cephalometric findings are used in coordination with other clinical findings and measurements.
They are used to "refine and improve clinical judgment and not to displace it". A measurement
that varies from the standard is not necessarily a problem. Cephalometric findings provide
quantitative information about craniofacial relationships that may explain why specific clinical
problems exists. A key principle in orthodontic diagnosis is understanding that dental
malocclusions that look similar at the clinical level may be have quite different etiologies at the
morphologic level. Cephalometric analysis is a powerful tool in gaining knowledge and
understanding of the soft tissue, skeletal and dental relationships that are unique for each
patient. - ANS How are cephalometrics used in diagnosis?
(1) SNA
(2) A-N Perp - ANS What helps you analyze the maxillary position in the anterior-posterior
direction (2)?
(1) SNB
(2) Pog-N Perp - ANS What helps you analyze the mandibular position in the anterior-
posterior direction (2)?
1
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(1) ANB
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, (2) Mx-Md Differential - ANS What helps you analyze the maxillary-mandibular relationship
in the anterior-posterior direction (2)?
PNS-A (helps you) - ANS What helps you determine the bone size measurement of the
maxilla (maxillary size)?
Go-Gn - ANS What helps you determine the bone size measurement of the mandible
(mandibular size)?
Pog-NB - ANS What helps you determine chin size?
S-N - ANS What helps you determine cranial base size?
(1) SN-MP
(2) SN-PP
(3) UFH/TFH%
(4) LFH/TFH% - ANS What gives us the vertical skeletal relationships (4)?
(1) overjet
(2) overbite
(3) U1-PP
(4) L1-MP - ANS What are the dental measurements in a ceph (AP and vertical) (4)?
(1) nasolabial angle
(2) maxillary and mandibular lip protrusion
(3) G'-Sn-Pog' (Soft tissue angle of facial convexity) - ANS What are the soft tissue
measurements in a ceph (3)?
2
review slide 3-4 - ANS review slide 3-4
Page
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, frontal and nasal bones - ANS What creates the frontonasal suture?
glabella - ANS The most prominent point on the outline of the supraorbital ridge and frontal
sinus regions of the frontal bone
Soft tissue glabella (G') - ANS What is G'?
The most prominent point in the midsaggital plane of the forehead located at the level of the
frontal sinus on the soft tissue.
nasion (N) - ANS The point where the midsagittal plane intersects the most anterior point of
the nasofrontal suture.
pronasale - ANS arrow
columella (Cm) - ANS The most anterior point at the columella of the nose
subnasale (Sn) - ANS arrow
The point where the nasal septum merges with the upper lip in the midsagittal plane.
Soft tissue A point - ANS SIs
Labrale Superious (Ls) - ANS Ls
The most anterior point on the upper lip
3
Page
Stomion - ANS St
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2025 QUESTIONS AND ANSWERS
Cephalometrics - ANS uses a set of measurements from a lateral cephalometric radiograph
to evaluate a patient's face, teeth and skeleton. Information is available in two planes of space:
ANTEROPOSTERIOR and VERTICAL. The patient's individual measurement are compared to
standard measures available according to gender, age and race (when available).
Cephalometric findings are used in coordination with other clinical findings and measurements.
They are used to "refine and improve clinical judgment and not to displace it". A measurement
that varies from the standard is not necessarily a problem. Cephalometric findings provide
quantitative information about craniofacial relationships that may explain why specific clinical
problems exists. A key principle in orthodontic diagnosis is understanding that dental
malocclusions that look similar at the clinical level may be have quite different etiologies at the
morphologic level. Cephalometric analysis is a powerful tool in gaining knowledge and
understanding of the soft tissue, skeletal and dental relationships that are unique for each
patient. - ANS How are cephalometrics used in diagnosis?
(1) SNA
(2) A-N Perp - ANS What helps you analyze the maxillary position in the anterior-posterior
direction (2)?
(1) SNB
(2) Pog-N Perp - ANS What helps you analyze the mandibular position in the anterior-
posterior direction (2)?
1
Page
(1) ANB
@COPYRIGHT @THEBRIGHT 2025/2026
, (2) Mx-Md Differential - ANS What helps you analyze the maxillary-mandibular relationship
in the anterior-posterior direction (2)?
PNS-A (helps you) - ANS What helps you determine the bone size measurement of the
maxilla (maxillary size)?
Go-Gn - ANS What helps you determine the bone size measurement of the mandible
(mandibular size)?
Pog-NB - ANS What helps you determine chin size?
S-N - ANS What helps you determine cranial base size?
(1) SN-MP
(2) SN-PP
(3) UFH/TFH%
(4) LFH/TFH% - ANS What gives us the vertical skeletal relationships (4)?
(1) overjet
(2) overbite
(3) U1-PP
(4) L1-MP - ANS What are the dental measurements in a ceph (AP and vertical) (4)?
(1) nasolabial angle
(2) maxillary and mandibular lip protrusion
(3) G'-Sn-Pog' (Soft tissue angle of facial convexity) - ANS What are the soft tissue
measurements in a ceph (3)?
2
review slide 3-4 - ANS review slide 3-4
Page
@COPYRIGHT @THEBRIGHT 2025/2026
, frontal and nasal bones - ANS What creates the frontonasal suture?
glabella - ANS The most prominent point on the outline of the supraorbital ridge and frontal
sinus regions of the frontal bone
Soft tissue glabella (G') - ANS What is G'?
The most prominent point in the midsaggital plane of the forehead located at the level of the
frontal sinus on the soft tissue.
nasion (N) - ANS The point where the midsagittal plane intersects the most anterior point of
the nasofrontal suture.
pronasale - ANS arrow
columella (Cm) - ANS The most anterior point at the columella of the nose
subnasale (Sn) - ANS arrow
The point where the nasal septum merges with the upper lip in the midsagittal plane.
Soft tissue A point - ANS SIs
Labrale Superious (Ls) - ANS Ls
The most anterior point on the upper lip
3
Page
Stomion - ANS St
@COPYRIGHT @THEBRIGHT 2025/2026
