Question | Answer |
tiny bumps of bone that serve as muscle attachment sites | genial tubercles |
ring-shaped radiopacity below the apices of the mandibular incisors | genial tubercles |
a hole in the bone located on the internal surface of the mandible near the midline | lingual foramen |
small, radiolucent dot surrounded by the genial tubercles | lingual foramen |
tube-like passageways that house nerves and blood vessels | nutrient canals |
vertical radiolucent lines | nutrient canals |
a linear prominence of bone extending from the premolar region to the midline | mental ridge |
thick, radiopaque band that extends from the premolars to the incisor region | mental ridge |
a scooped out, depressed area of bone located above the mental ridge | mental fossa |
a radiolucent area located above the mental ridge | mental fossa |
a hole in bone located on the external surface of the mandible in the region of the mandibular premolars | mental foramen |
small ovoid or round radiolucency in the apical region of the mandibular premolars | mental foramen |
a tube-like passageway through bone that travels the length of the mandible | mandibular canal |
a radiolucent band outlined by radiopaque by radiopaque lines and appears below the apices of the mandibular molar teeth | mandibular canal |
a linear prominence of bone located on the internal surface of the mandible that extends downward and forward from the ramus | internal oblique ridge |
a radiopaque band extending downward from the ramus; may continue on as the mylohyoid ridge | internal oblique ridge |
a linear prominence of bone located on the external surface of the body of the mandible | external oblique ridge |
a radiopaque band extending downward from the ramus; typically ends in the third molar region | external oblique ridge |
a scooped out, depressed area of bone located on the internal surface of the mandible | submandibular fossa |
a radiolucent area in the mandibular molar region below the mylohyoid ridge | submandibular fossa |
a marked prominence of bone on the anterior ramus of the mandible | coronoid process |
a triangluar radiopacity superimposed over the manxillary tuberosity region; **only mandibular landmark to appear on maxillary films | coronoid process |
a hole in bone located at the midline of the anterior portion of the hard palate | incisive foramen |
small ovoid radiolucency between the roots of the maxillary central incisors | incisive foramen |
an immovable joint between the two palatine processes of the maxilla | median palatal suture |
thin, radiolucent line between the maxillary central incisors | median palatal suture |
pear-shaped compartment of bone located superior to the maxilla | nasal cavity |
large, radiolucent area above the maxillary incisors | nasal cavity |
vertical bony wall or partition that divides the nasal cavity into the right and left nasal fossae | nasal septum |
vertical, radiopaque partition that divides the nasal cavity | nasal septum |
a sharp projection of the maxilla located at the anterior and inferior portion of the nasal cavity | anterior nasal spine |
V-shaped radiopaque area located at the intersection of the floor of the nasal cavity and the nasal septum | anterior nasal spine |
paired compartments of bone located within the maxilla located above the maxillary premolar and molar teeth | maxillary sinus |
radiolucent area superior to the apices of the maxillary posterior teeth | maxillary sinus |
borders that outline and / or divide the maxillary sinus | floor of the maxillary sinus |
thin, radiopaque lines that surround / divide the sinus | floor of the maxillary sinus |
the intersection of the maxillary sinus and the nasal cavity | inverted y |
radiopaque upside-down y located superior to the maxillary canine | inverted y |
a rounded prominence of bone that extend posterior to the third molar region | maxillary tuberosity |
radiopaque bulge distal to the third molar region | maxillary tuberosity |
a small, hook-like projection of bone located posterior to the maxillary tuberosity region | hamulus |
radiopaque hook-like projection posterior to the maxillary tuberosity | hamulus |
a bony projection of the maxilla that articulates with the zygoma | zygomatic process of the maxilla |
j- or u-shaped radiopacity located superior to the maxillary first molar region | zygomatic process of the maxilla |
cheek bone; composed of dense cortical bone | zygoma |
diffuse, radiopaque band extending posterior from the zygomatic process of the maxilla | zygoma |