Maxillary Structures
Maxillary Structures
Maxillary Structures
Mandibular Structures
Mandibular Structures
100
What are these radiolucent lines
Nutrient Canal
100
Radiopaque bulge distal to 3rd molar
Maxillary tuberosity
100
Diffuse, radiopaque band extending posterior from zygomatic process of maxilla
Zygoma (malar bone, zygomatic bone)
100
Radiolucent band surrounded by radiopaque border inferior in molar teeth
Mandibular canal
100
Radiopaque band extending down and forward from ramus. It runs parallel to but below the external oblique ridge.
Internal oblique ridge (line)
200
Small Ovoid/Round radiolucent area between roots of maxillary centrals
Incisive (nosopalatine) foramen
200
Vertical radiopaque partition that divides nasal cavity
Nasal Septum
200
Diffuse radiopaque projection within nasal cavity
Inferior Nasal Conchae
200
Small ovoid or round radioluceny located in apical premolar region
Mental foramen
200
Radiolucent area in molar region below mylohyoid ridge
Submandibular fossa
300
Thin radiolucent line between maxillary central incisors
Median Palatal Suture
300
Radiolucent line between maxillary canine and lateral incisors
Canine (lateral) fossa
300
Large radiolucent area above maxillary incisors
Nasal cavity (fossa)
300
Radiolucent ara above mental ridge
Mental Fossa
300
Radiopaque band extending down and forward from ramus superior to internal oblique ridge
External Oblique Ridge
400
Hook-like projection posterior to maxillary tuberosity
Hamulus (hamular process)
400
Radiopaque line above the maxillary molar/premolar area. 
Floor of the maxillary sinus
400
Dense radiopaque band of bone above maxillary incisors
Floor of nasal cavity
400
Ring-shaped radiopacity below mandibular incisors
Genial tubercles
400
Triangular radiopacity superimposed or inferior to maxillary tuberosity
Coronoid process
500
The inverted "Y" is the intersection of what two structures?
Maxillary sinus and Nasal cavity
500
J-or U-shaped radiopacity superior to maxillary 1st molar region
Zygomatic process of the maxilla
500
V-shaped radiopaque area located at intersection of floor of nasal cavity and nasal septum
Anterior nasal spine
500
Thick radiopaque band that extends from premolar to incisor region
Mental ridge
500
Dense radiopaque band extending down & forward of molar region
Mylohyoid ridge
The internal oblique ridge (found below the external oblique turns into the mylohyoid ridge