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.
Dr. Vandana Kumar, DDS, MS
Median Palatine Suture
2 - Nasal septum
3 - ZygomaIncisive Foramen
Nasolabial foldSoft tissue Shadows
Black arrows delineate margin of alar cartilage of the noseIncisive Fossa & Canine Fossa
1-White arrows denote the malar process
2-Black arrows delineate the lower border of the zygomatic arch
nutrient canals fossa
Mylohyoid line fossa
Structures are flattened and spread out
Desirable: mandible, mandibular canal etc.
Undesirable: nasal turbinate and meati
Midline structures may be projected in two ways:
As single, midline structures
As bilateral structures
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.
Hard Palate fossa
REAL IMAGE fossa
Ghost of contra-lateral ramus
Ghost of Hard Palate
Soft tissue outlines are visualized
Examples: lips, nasolabial fold, dorsum of
tongue, soft palate, ear and ear lobe.
Dorsum of tongue
Air spaces are visualized
Palatoglossal air space
Nasopharyngeal air space fossa
Glossopharyngeal air space
Areas adjacent to tooth bearing areas are visualized
Cervical vertebrae fossa
Lingual Foramen fossa
Relative Radiolucencies and Radiopacities are seen