Radiographic Lamdmarks Flashcards by Faye Sitron

Q

Anterior nasal spine

A

Found between the central incisors

Unilateral, radiopaque

Triangular point

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Q

Coronoid process

A

Seen on a molar PA

Bilateral, radiopaque, triangular

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Q

Hamular process

A

Seen in molar periapical

Bilateral, radiopaque, finger-like

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Q

Incisive foramen

A

Ala nasopalatine foramen

Seen between central incisors

Unilateral, radiopaque, round/oval

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Q

Inferior nasal conchae

A

Seen on central incisors PA

bilateral, radiopaque, round/oval

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Q

Inverted Y

A

Seen on lateral incisor and canine PA

Bilateral, radiopaque, upside down Y

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Q

Lateral fossa

A

AKA Canine fossa

Seen on lateral incisor PA

Bilateral, radiolucent, diffuse

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Q

Maxillary sinus

A

Seen on premolar/molar PA

Bilateral, radiolucent, horizontally oblong

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Q

Maxillary tuberosity

A

Found on molar PA

Bilateral, radiopaque, rounded

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Q

Mid-palatine suture

A

Aka median palatine suture

Unilateral, radiolucent, vertical line

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Q

Nasal fossa

A

Aka nasal cavity

Seen on central incisor, lateral
Incisor and canine PA

Bilateral, radiolucent, vertically oblong

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Q

Nasal septum

A

Seen on central incisor PA

Unilateral, radiopaque, vertical band

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Q

Pterygoid plates

A

Found on molar PA

Bilateral, radiopaque, wing of bone

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Q

Zygomatic bone

A

Aka malar process

Seen on premolar/molar PA

Bilateral, radiopaque, u-shaped

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Q

External oblique ridge

A

Seen on mandibular molar PA

Bilateral, radiopaque, diagonal line

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Q

Genial tubercle

A

Mental spine

Seen on mandibular central incisor PA

Unilateral, radiopaque, doughnut shaped

Q

Inferior border of the mandible

A

Seen on any mandibular PA

Bilateral, radiopaque, horizontal band

Q

Internal oblique ridge

A

Aka mylohyoid line

Seen on any mandibular molar PA

Bilateral, radiopaque diagonal line

Q

Lingual foramen

A

Seen on mandibular central incisor PA

Bilateral, radiolucent pinpoint dot

Q

Mandibular canal

A

Aka inferior alveolar nerve canal

Seen on mandibular premolar PA

bilateral, radiolucent, tubular

Q

Mental foramen

A

Seen on mandibular premolar and canine PA

Bilateral, radiolucent, circular

Q

Mental fossa

A

Seen on mandibular central incisor PA

Unilateral, radiolucent, diffuse

Q

Mental ridge

A

Seen on mandibular central incisor, lateral incisor and canine PA

Bilateral, radiopaque, inverted V

Q

Submandibular fossa

A

Seen on mandibular premolar and molar PA

Bilateral, radiolucent, diffuse