mandibular anatomy Flashcards
Symphysis
▪In Infants it is a radiolucent line through
the midline of the jaw between the
images of the forming deciduous central
incisors.**
symphasis
Genial Tubercles
Genial Tubercles
▪They are bony protuberances
located on the lingual surface of
the mandible slightly above the
inferior border and in the midline
genial tubercles
genial tubercles
Lingual Foramen
.
Lingual Foramen
▪Is a foramen on the lingual surface of themidline of the mandible in the region of thegenial tubercles.
▪There are often two or even more.
lingual foramen
CBCT of lingual foramen
Mental Ridge
▪On periapical radiographs of the
mandibular central incisors, the mental
ridge may occasionally be seen as two
radiopaque lines sweeping bilaterally
forward and upward toward the
midline.
mental ridge
mental ridge
Mental Fossa
▪The mental fossa is a depression
on the labial aspect of the
mandible extending laterally from
the midline and above the mental
ridge
mental fossa
mental fossa
Mental Foramen
▪The mental foramen is
usually the anterior limit of
the inferior dental canal.
mental foramen
Mandibular Canal
▪The radiographic image of the
mandibular canal is a dark linear
shadow with thin radiopaque
superior and inferior borders
mandibular canal
mandibular canal
mandibular canal
Nutrient Canals
Nutrient Canals
▪Nutrient canals carry a
neurovascular bundle and appear
as radiolucent lines of fairly
uniform width
NUTRIENT CANALS
nutrient canals
nutrient canal
nutrient canal
Internal Oblique Ridge
▪The mylohyoid ridge is a slightly
irregular crest of bone on the
lingual surface of the mandibular
body.
▪Also called mylohyoid ridge
mylohyoid ridge
mylohyoid ridge
mylohyoid ridge
Submandibular
Gland Fossa
Submandibular
Gland Fossa
▪Is a depression of the bone on
the lingual surface of the
mandibular body, immediately
below the internal oblique ridge in
the molar area.
submandibular gland fossa
what is the apical lunceny?
submandibular gland fossa
External Oblique
Ridge
-
External Oblique
Ridge
▪Is a continuation of the
anterior border of the
mandibular ramus.
Copyright
external oblique ridge
external oblique ridge
Inferior Border of
the Mandible
▪Occasionally, the inferior
mandibular border is seen on
periapical projections as a
characteristically dense, broad
radiopaque band of bone
inf mandible border
inferior mandible border
Coronoid Process
▪The image of the coronoid
process is triangular radiopacity,
with its apex directed superiorly
and anteriorly, superimposed on
the region of the third molar
coronoid process
Mandibular tori
Mandibular tori
▪ Bony outgrowths on the lingual
surface of the mandible
▪Often bilateral and symmetrical
man tori
man tori
