Exam 1.7: Normal Intraoral Radiographic Anatomy Flashcards
What is the mid-palatal suture?
Thin, radioLUCENT line between maxillary centrals extending from anterior aspect of maxilla to posterior aspect of palate
What structure appears as thin radiolucent lines about roots of maxillary incisors
Floor of the nasal fossa
What is the nasal septum comprised of, and where might you see it?
Cartilage and the vomer bone, above central incisors
What represents the most anterior point on the maxilla
Anterior nasal spine
What structure is an ovoid radiolucency between maxillary incisors
Incisive foramen
Concavity in maxilla between roots of lateral and canine, bone is thinner here
Lateral fossa
Floor of nasal fossa and wall of maxillary sinus, useful in edentulous patients
Lateral canine area
How do the medial, inferior, and lateral walls of the maxillary sinus show up on images
Thin radioPACITIES
Where will you find the malar process of the zygoma?
Over the roots of the maxillary 1st molar
What are vertical radiopaque lines arising from the floor of sinus?
Sinus septations
How does the posterior superior alveolar canal show up on maxillary radiographs
Horizontal radiolucent bands
Where will you find the maxillary tuberosity?
Posterior to the 3rd molar
When might you see the nasolabial fold?
On Premolar Film when the patient’s mouth is slightly open
What type of PA might you see the coronoid process of the mandible?
Maxillary Molar PAs
Where might you see the Oblique Ridge of the Mandible?
It crossed the mandibular 2nd or 3rd Molar at the CEJ
