ORTHO Flashcards
the most anterior point
of the juncture of the frontal bone with
the two nasal bones.
NASION
the most
anterior point on the anterior nasal
spine of the maxilla
ANS
the tip of
the posterior margin of the palatine
bones as they join in the midline to
form the posterior border of the hard
palate
PNS
represents the
most forward position of the base of
the alveolar ridge (denture base) of the
maxilla within which the central incisors
are positioned
POINT A
represents the
most forward position of the base of
the alveolar ridge (denture base) of the
mandible within which the mandibular
central incisors are positioned
POINT B
the most anterior
point of the chin or chin button
- the chin button is much more prominent on men than on women
POGNION
the point under the chin
MENTALE
The point halfway
between Pg and M
GNATHION
the landmarks located
by establishing the midpoint of the
usually ovoid pattern drawn to
complete the circle of the bony cavity
occupied by the pituitary gland in the
sphenoid bone.
SELLA TURCICA
The most inferior point on
the angle of the left mandible
GONION
- the most inferior point
on the rim of the orbit
ORBITALE
the most superior point on
the curvature of the bony external
acoustic meatus.
PORION
- it is
represented as the line from which all
maxillary growth is projected forward.
PTERGOMAXILLARY FISSURE
