RHS anatomic Landmarks

identify the following anatomical landmarks as maxillary or mandibular:

lingual foramen

mandibular

the broad radiolucent band seen just below the internal oblique ridge is the submandibular fossa

true

all the following can appear on radiograph of the mandibular incisors EXCEPT one. which is the EXCEPTION?

hamular process

all the folowing can appear within the maxillary sinus EXCEPT one. which is the EXCEPTION?

coronoid process

a radiopaque Y in the maxillary canine region represents the junction of the border of the maxillary sinus and the

floor of the nasal cavity

The nasal septum ends inferiorly at another radiopaque landmark known as the:

anterior nasal spine

identify the thin, radiolucent line seen surrounding the cementum of the root of the tooth

periodontal ligament space

all of the following landmarks will appear radiolucent EXCEPT one. Which one

ridge

the V-shaped structure seen in the mandibular incisor area is the

mental ridge

what radiolucent anatomical structure is indicated by the arrow?

nasal fossa

what radiolucent anatomic structure is indicated by the arrow?

mental foramen

what radiopaque anatomical structure is indicated by the arrow?

floor of the maxillary sinus

what radiolucent anatomical structure is indicated by the arrow?

maxillary sinus

what radiopaque anatomical structure is indicated by the arrow?

nasal septum

what radiolucent anatomical structure ( dark oval) is indicated by the arrow?

incisive foramen

what radiolucent anatomical structure (thin, dark line) is indicated by the line?

median palatine suture

what radiopaque anatomical structure s indicated by the arrow?

genial tubercles

what is the proper method for mounting radiographs?

radiographs should be mounted as if you were facing the patient

which of these structures appears radiolucent?

dental pulp

which of these structures appears radiopaque?

maxillary tuberosity

the inverted-Y landmark is composed of which two structures?

inferior border of the nasal cavity and anterior border of maxillary sinus

which of the following best describes the appearance of bone on a radiograph?

cortical bone appears radiopaque, cancellous bone appears radiolucent

identify the area the arrow points to on the dental patient

mandibular canal

identify the radiopaque area the arrow points to

zygoma

identify the radiopaque area the arrow points to

coronoid process

identify the radiolucent area the arrow points to

nutrient canal

what are the arrows pointing to?

lateral fossa

identify this landmark

mylohyoid ridge

identify the landmark the arrow points to in the dental image?

incisive foramen

what is the arrow pointing to in the dental image?

mental foramen

identify the landmark

maxillary sinus

identify this landmark of the dental image

maxillary tuberosity

identify this landmark

nasal spine

identify this landmark

mental ridge

on a dental image, the alveolar crest is typically located _________ mm below the junction of the crown and the foot surfaces

1.5 to 2.0

which of the following tooth structures is most radiolucent?

pulp

the anterior nasal spine is located at the ________ portion of the nasal cavity

anterior and interior

on a maxillary periapical image, the floor of the nasal cavity appears as a _______ band of bone ________ the maxillary incisors

radiolucent, above

on maxillary periapical image, the nasal septum may be superimposed over the

median palatal suture

the lateral walls of the nasal cavity are formed b y the ______ bone and the maxillae

ethmoid

on a dental image, the lateral fossa appears as a ______ area of _____ appears, depending on the anatomy of the individual

radiolucent, variable

the lateral fossa is located between the

Maxillary canine and lateral incisor

the median palate suture is located between the two _______ of the maxilla

palatine process

on a periapical image, the maxillary sinuses appear as radiolucencies located superior to the apices of the

maxillary molars and permolars

the superior foramina of the incisive canal are located on the ________ of the nasal cavity

floor

the superior foramina of the incisive canal are ________ tiny openings or holes in bone

two

on a ________ perapical image, the nasal fossa appears as a large _______ are located above the roots of the maxillary incisors

maxillary, radiolucent

the ______ nerve exits the maxilla through the incisive foramen

nasopalatine

This foramen is almond-shaped and is located between the apices of the maxillary central incisors.

incisive

which of the following landmarks would appear radiolucent on a dental image?

suture

an empty soace within bone is known as a

sinus

a pointed, spikelike protrusion of bone is a

spine

which of the following describes a ridge

Linear protrusion of bone

which type of bone is composed of bony trabeculae?

cancellous

cancellous bone is the soft ________ bone located between two layers if ________ cortical bone

spongy, dense

(1) cancellous bone is considered radiolucent

(2) cortical bone is considered radiolucent

both statements are false

compact bone is also called ________ bone

cortical

Where is the mental fossa and is it radiopaque or radiolucent?

Mandibular anterior, radiolucent

Where are the oblique ridges? Are they radiopaque or radiolucent? What’s difference between external and internal?

Mandibular posterior, radiopaque, external is on outer surface of mandible and internal is on lingual side

Where is mental foramen located?

Mandibular premolar region, radiolucent, circular