normal anatomical radiographic landmarks
DESCRIPTION
NORMAL ANATOMICAL RADIOGRAPHIC LANDMARKS. Mohammed Malik Afroz. NORMAL RADIOGRAPHIC ANATOMY – { INTRAORAL PERIAPICAL FILMS }. INTERMAXILLARY SUTURE NASAL FOSSA INCISIVE FORAMEN LATERAL FOSSA NOSE NASOLACRIMAL CANAL. ANTERIOR NASAL SPINE NASAL SEPTUM - PowerPoint PPT PresentationTRANSCRIPT
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NORMAL ANATOMICAL RADIOGRAPHIC LANDMARKS
Mohammed Malik Afroz
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NORMAL RADIOGRAPHIC ANATOMY – { INTRAORAL PERIAPICALPERIAPICAL FILMS}
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RADIOLUCENT RADIO OPAQUE
1. INTERMAXILLARY SUTURE
2. NASAL FOSSA
3. INCISIVE FORAMEN
4. LATERAL FOSSA
5. NOSE
6. NASOLACRIMAL CANAL
1. ANTERIOR NASAL SPINE
2. NASAL SEPTUM
3. FLOOR OF NASAL FOSSA
4. NASOLABIAL FOLD
5. MAXILLARY SINUS
6. ZYGOMATIC PROCESS
7. MAXILLARY TUBEROSITY
8. HAMULAR NOTCH
MAXILLA
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Radiolucent Land Marks of Maxilla
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THIN RADIOLUCENT LINE
MIDLINE
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Well defined radiolucency
Either side of nasal septum
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OVOID RADIOLUCENCY
WELL DEFINED
BETWEEN ROOTS OF CENTRALS
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Depression – canine lateral
Diffuse radiolucency
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Connects nasal cavity to lacrimal gland
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IOPAOCCLUSAL VIEW
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Radiopaque Landmarks of Maxilla
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RADIO-OPACITYV SHAPED
1.5 –2 CM ABOVE CREST
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THICK RADIO OPAQUE LINE
ABOVE APICES OF CENTRALS
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THIN RADIO OPAQUE LINE
EITHER SIDE –NASAL SEPTUM
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Soft tissue shadow
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CANINE - PREMOLAR AREA
OBLIQUE SOFT TISSUE SHADOW
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AIR FILLED CAVITY
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INVERTED Y OF ENNIS
SEPTA
DIPPING OF SINUS
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Radio opaque bulge
Distal to 3 rd molar
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Hook like projection Extends from medial pterygoid plate
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RADIOLUCENT RADIO OPAQUE
1. SYMPHYSIS
2. MENTAL FOSSA
3. SUBMANDIBULAR GLAND FOSSA
4. MENTAL FORAMEN
5. MANDIBULAR CANAL
6. NUTRIENT CANALS
1. GENIAL TUBERCLES
2. MENTAL RIDGE
3. MYLOHYOID RIDGE
4. EXTERNAL OBLIQUE RIDGE
5. INFERIOR BORDER
6. CORONOID PROCESS
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Radiolucent Landmarks of Mandible
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Seen in Infants
Radio lucent line
MIDLINE
Importance in adults: Cleft /fracture
Oral radiology-Principles and Interpretation (White &Pharoah 5th edition)
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Scooped out depression
Anterior mandible Oral radiology-Principles and Interpretation (White &Pharoah 5th edition)
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MOLAR AREA
DIFFUSE RADIOLUCENCY
ACCOMODATES SG CAVITY “FUNDAMENTALS OF ORAL MEDICINE AND RADIOLOGY”-
(Bailoor DN –Nagesh K S) 3 rd EDITION
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PREMOLAR AREA OVOID RADIOLUCENCY
Oral radiology-Principles and Interpretation (White &Pharoah 5th edition)
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Linear radiolucent shadow
Mental foramen to mand foramen
Radio opaque superior /inferior borders
“FUNDAMENTALS OF ORAL MEDICINE AND RADIOLOGY”- (Bailoor DN –Nagesh K S) 3 rd EDITION
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RUNS VERTICALLY UPWARDS Oral radiology-Principles and Interpretation (White &Pharoah 5th edition)
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Radiopaque Landmarks of Mandible
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Lingual surface
Spine shaped projection
Attachment of muscles
Oral radiology-Principles and Interpretation (White &Pharoah 5th edition)
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OCCLUSAL/IOPA VIEWS
Lingual foramen
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Extends from premolar
Oral radiology-Principles and Interpretation (White &Pharoah 5th edition)
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2 Radio opaque lines
(Bilateral)
IOPA of mand centrals
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LEVEL OF MOLAR APICES ABOVE THE MAND CANAL
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RADIO OPAQUE LINE
MANDIBULAR 3rD MOLAR REGION
NEAR ALVEOLAR CREST
Oral radiology-Principles and Interpretation (White &Pharoah 5th edition)
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DENSE RADIO OPAQUE BAND
OCCASIONALLY SEEN Oral radiology-Principles and Interpretation (White &Pharoah 5th edition)
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Periapical view of max 3rd molarDownward /forward
Movement of coronoidDuring opening Oral radiology-Principles and Interpretation
(White &Pharoah 5th edition)
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Importance :
Differentiate from pathology
NASOPALATINE DUCT CYST
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THANK YOU
Any Questions ?????