Review of Radiographic Anatomy
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Review of Radiographic Anatomy. Dr. Vandana Kumar, DDS, MS. RESTORATIONS. Maxilla. Median Palatine Suture. Median Palatine Suture. Anterior Nasal Spine. Nasal Septum. Nasal Fossae. 1 - Incisive Foramen 2 - Nasal septum 3 - Zygoma. Incisive Foramen. Nose Border & Alar Cartilage.

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Review of Radiographic Anatomy

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Review of radiographic anatomy

Review of Radiographic Anatomy

Dr. Vandana Kumar, DDS, MS


Review of radiographic anatomy

RESTORATIONS


Maxilla

Maxilla


Review of radiographic anatomy

Median Palatine Suture

Median Palatine Suture


Anterior nasal spine

Anterior Nasal Spine


Nasal septum

Nasal Septum


Nasal fossae

Nasal Fossae


Incisive foramen

1 - Incisive Foramen

2 - Nasal septum

3 - Zygoma

Incisive Foramen


Nose border alar cartilage

Nose Border & Alar Cartilage


Soft tissue shadows

Lip Line

Nasolabial fold

Soft tissue Shadows


Incisive fossa canine fossa

White arrows denote radiolucent area of incisive/canine fossa

Black arrows delineate margin of alar cartilage of the nose

Incisive Fossa & Canine Fossa


Maxillary sinus

Maxillary Sinus


Antral y inverted y

Antral Y/ Inverted Y


Malar process zygomatic arch

Malar Process/Zygomatic Arch

1-White arrows denote the malar process

2-Black arrows delineate the lower border of the zygomatic arch


Maxillary tuberosity

Maxillary Tuberosity


Lateral pterygoid plate hamulus

Lateral Pterygoid Plate & Hamulus


Coronoid process

Coronoid Process


Mandibular bone

Mandibular Bone


Inferior border of mandible

Inferior Border of Mandible


Review of radiographic anatomy

Genial tubercles

Lingual foramen

Mental Ridge


Review of radiographic anatomy

Genial tubercles

Lingual foramen

Mental Ridge


Review of radiographic anatomy

nutrient canals

mandibular tori


Mental foramen

Mental Foramen

  • White arrows outline the mental foramen.

  • Black arrows outline apical pathology which is secondary to pulpal exposure from coronal caries


Review of radiographic anatomy

Mylohyoid line


Review of radiographic anatomy

  • White arrows indicate external oblique ridge

  • Black arrows delineated internal oblique ridge


Panoramic anatomy

Panoramic Anatomy


Concepts of normal panoramic anatomy

Concepts of Normal Panoramic Anatomy

Concept 1

Structures are flattened and spread out

Desirable: mandible, mandibular canal etc.

Undesirable: nasal turbinate and meati

Concept 2

Midline structures may be projected in two ways:

As single, midline structures

As bilateral structures


Concept 2

Concept 2

Zone of Single Images:

Single midline structures in this zone will appear on radiograph as single midline structures, e.g. incisor teeth, nasal fossa, anterior nasal spine, soft tissue of nose.

Zone of double Images:

Single midline structures in this zone will appear on the radiograph as bilateral (double) structures,

e.g. hyoid bone, palate, cervical spine

*Double images occur because the object lies between the center of rotation and the film twice during one exposure cycle.


Review of radiographic anatomy

Formation of Double Image


Review of radiographic anatomy

Hard Palate

Hyoid Bone


Concept 3

Concept 3

  • Ghost Images are formed


Review of radiographic anatomy

REAL IMAGE

GHOST IMAGE


Concept 31

Concept 3

Ghost of contra-lateral ramus

Ghost of Hard Palate


Concept 4

Concept 4

Soft tissue outlines are visualized

Examples: lips, nasolabial fold, dorsum of

tongue, soft palate, ear and ear lobe.


Concept 41

Concept 4

Dorsum of tongue

Soft Palate

Nasolabial fold


Concept 5

Concept 5

Air spaces are visualized

  • Examples: maxillary sinus, nasal fossa, air space above tongue, naso-oro-hypopharynx


Review of radiographic anatomy

Posterior Pharyngeal wall

Palatoglossal air space


Review of radiographic anatomy

Nasopharyngeal air space

Glossopharyngeal air space


Concept 51

Concept 5

Platoglossal Airspace

Maxillary sinuses

Naso-pharyngeal Airspace


Concept 6

Concept 6

Areas adjacent to tooth bearing areas are visualized

  • Example: condyle, coronoid process, zygomatic arch, maxillary sinus, nasal fossa, orbit, styloid process, hyoid bone.


Concept 61

Concept 6

Articular eminence

Condyle

Glenoid fossa

Sigmoid notch


Review of radiographic anatomy

Cervical vertebrae

Mandibular foramen


Review of radiographic anatomy

Lingual Foramen

Hyoid bone


Concept 7

Concept 7

Relative Radiolucencies and Radiopacities are seen

  • Machine components

    • Chin Rest

    • Lateral Positioning guides

    • Anterior Positioning guides


Concept 71

Concept 7


Quiz time

Quiz Time

  • Write answers on a separate sheet of

  • paper

  • Make sure you do write your name and student ID number


Thank you

THANK YOU


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