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Overall Classification: UNCLASSIFIED//REL TO NATO/ISAF.

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Presentation on theme: "Overall Classification: UNCLASSIFIED//REL TO NATO/ISAF."— Presentation transcript:

1 Overall Classification: UNCLASSIFIED//REL TO NATO/ISAF

2  Radiopacity – light on film  Radiolucency - dark on film

3  Radiopaque:refers to a light area on the film ◦ Structures that are absorbers of x-rays block the x- rays from reaching the film ◦ The x-rays are attenuated (decreased in intensity) by absorbing structures ◦ Fewer radiation reach the film ◦ Dense structures are strong absorbers

4  Radiolucent:refers to a dark area on the film ◦ Structures that are less dense are poor absorbers and allow more radiation to reach the film

5  Enamel  Cementum  Dentin  Bone  Muscle  Fat  Air Restorative and surgical materials have various densities and abilities to absorb. Metallic materials are more dense than enamel, thus appear very white on radiographs

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42  Radiolucent depression between alveolar ridge and mental ridge

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65  Floor of sinus extends to alveolar crest due to missing teeth

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67  Radiopaque  V-shaped

68  Extends bilaterally away from ANS

69  Variable size and shape, border  Variable position, due to angulation of x-ray beam

70  Transmits nasopalatine nerves and vessels  Terminates in incisive foramen  Not always seen

71  Superimposition of septal cartilage and vomer  Deviated septum

72  In the nasal fossa  Away from the septum

73  Median suture  Uniform width

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86 Overall Classification: UNCLASSIFIED//REL TO NATO/ISAF


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