Intraoral Radiographic Anatomy

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Presentation transcript:

Intraoral Radiographic Anatomy

Radiographic Density Radiopacity Radiolucency Page 24 of Dr. Beck’s Notes

Follicle

Trabecular Pattern

Trabecular Pattern

Sparse Trabeculation Inferiorly

Dental Papilla

Mandibular Posterior Region

Alveolar Ridge

External Oblique Ridge

Internal Oblique Ridge (Mylohyoid Ridge)

Mandibular Canal

Enlarged PDL Space?

Inferior Border of Mandible

Inf. Alveolar Canal

Oblique Ridges

Mental Foramen

Anterior Looping of the Canal

Posteriorly Positioned Foramen

Mandibular Tori

Anterior Mandible

Genial Tubercle

Genial Tubercle

Nutrient Canals

Mental Fossa Radiolucent depression between alveolar ridge and mental ridge

Mental Ridge

Liar, Liar!! Do Our Eyes Lie?

All Those Horizontal Lines!

Alveolar Ridge

Floor / Wall of Maxillary Sinus

Zygomatic Arch (Inf. Border)

Zygomatic Process of Maxilla

Floor of Nasal Cavity

Tuberosity

Hamular Notch and Process

Coronoid Process

Resorption of Coronoid Process?

Clinical Hamular Notch

Tuberosity

Maxillary Sinus Floor of sinus extends to alveolar crest due to missing teeth

Floor / Wall of Maxillary Sinus Wavy outline of the sinus

Relatively smooth outline

Sinus occupies inter-radicular space

Inverted Y formed by nasal fossa and maxillary sinus

Nasolabial Fold/ Cheek Mass

Maxillary Anterior Region

Anterior Nasal Spine Radiopaque V-shaped

Floor of Nasal Cavity Extends bilaterally away from ANS

Incisive Foramen Variable size and shape, border Variable position, due to angulation of x-ray beam

Nasopalatine Canal Transmits nasopalatine nerves and vessels Terminates in incisive foramen Not always seen

Sup. Foramina of Nasopalatine On each side of nasal septum Mostly seen when h vertical angle

Nasal Septum Superimposition of septal cartilage and vomer Deviated septum

Inferior Concha In the nasal fossa Away from the septum

Nasal Mucosa

Intermaxillary Suture Median suture Extends from alveolar crest through ANS, posteriorly to distal aspect of hard palate Uniform width Variable shape Angulation of central ray

Soft Tissue Outline of Nose

Nasal turbinates

Foramena of Stenson and Scarpa

Opening of nasolachrimal duct