Panoramic radiography. 1952, Paatero 1960 2002 Development of Panoramic radiogaphy.

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Presentation transcript:

Panoramic radiography

1952, Paatero Development of Panoramic radiogaphy

Tomographic layer

OP layer

Projection of OP

Anatomical landmarks

Ext. Auditory meatus Mandibular condyle Articular eminence Coronoid process Zygomatic bone Ptregomaxillary Fissure Inf. orbital rim Floor of Maxillary sinus Ant. wall of Maxillary sinus Hard palate Nasal fossa Inf. Orbital canal and foramen Zyg. process of Maxilla Panoramic Innominate line (Infra temporal surface of Zyg. bone Lat. ptreg. plate Man. fossa Inf. border of Mandible C- Spine Mental foramen Hyoid bone Inf. Alveolar canal Ext. oblique ridge All this diagnostic information is missed in intraoral X-rays Hard Tissue

Soft tissues on OP

Inf. nasal concha (turbinate) Inf. nasal meatus Dorsal surface of the tongue Post. Wall of the pharynx Soft palate Lower lip Upper lip Middle meatus Ghost image of opposite Man. Soft tissue (edentulous) All this diagnostic information is missed in intraoral X-rays

Ghost image

Elnöki tumor

Presidental tumor

Carotis plaque

Resorption on the cortical bone Nakamoto et al. Osteoporos Int (2003) 14: 659–664 Specificity: 40% Senzitivity: 77% (comparing with BMD)

Osteoporotic patient

Normal panoramic