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Panoramic Panoramic Technique ErrorsTechnique Errors
K. Hock, RDH, MAdEdK. Hock, RDH, MAdEd
DHY 202 Clinical Radiology IDHY 202 Clinical Radiology I
Dental Hygiene DepartmentDental Hygiene Department
William Rainey Harper CollegeWilliam Rainey Harper College
IntroductionIntroduction
• It is important to look at other It is important to look at other anatomical features besides the teeth anatomical features besides the teeth when assessing diagnostic quality of a when assessing diagnostic quality of a panoramic radiographpanoramic radiograph..
Assessing The Assessing The Diagnostic Quality of Diagnostic Quality of
Panoramic Panoramic RadiographsRadiographs
• Divide the Divide the panoramic panoramic radiograph into six radiograph into six zones: three are in zones: three are in the midline and the midline and three are bilateralthree are bilateral
ZoneZone1 1
Zone 2Zone 2
Zone 3Zone 3
Zone 4Zone 4
ZoneZone 55
Zone 6Zone 6
Technique Technique ErrorsErrors
Client Client PositioningPositioning
Client Client PreparationPreparation
ExposureExposure
OperationalOperationalFilmFilm HandlingHandling
Client Positioning Client Positioning ErrorsErrors
Antero-Antero-posteriorposterior
Horizontal/Horizontal/MidsaggitalMidsaggital
Cervical SpineCervical SpineVertical/Vertical/ OcclusalOcclusal
Client Preparation Client Preparation ErrorsErrors
ObjectsObjects UnsharpnessUnsharpnessAir Space Air Space ArtifactsArtifacts
Exposure ErrorsExposure Errors
UnderUnderExposedExposed
Over Over ExposedExposed
Double Double ExposureExposure
Operational ErrorsOperational Errors
IncompleteIncomplete ExposureExposure
CassetteCassette ResistanceResistance
Not StartingNot Startingat Home Baseat Home Base
Film Handling & Film Handling & Processing ErrorsProcessing Errors
StaticStaticElectricityElectricity
Debris/Debris/ScratchedScratchedScreensScreens
FilmFilmCrimpingCrimping
WhiteWhiteLight ExposureLight Exposure
Technique Technique ErrorsErrors
Client Client PositioningPositioning
Client Client PreparationPreparation
ExposureExposure
OperationalOperationalFilmFilm HandlingHandling
Client Positioning Client Positioning ErrorsErrors
Antero-Antero-posteriorposterior
Horizontal/Horizontal/MidsaggitalMidsaggital
Cervical SpineCervical SpineVertical/Vertical/ OcclusalOcclusal
Client Positioning Client Positioning ErrorsErrors
Antero-Antero-posteriorposterior
Client too far forwardClient too far forward Client too far backClient too far back
Client Too Far Client Too Far ForwardForward
Client Too Far Client Too Far ForwardForward
Client Too Far Client Too Far ForwardForward
Client Too Far BackClient Too Far Back
Client Too Far BackClient Too Far Back
Client Too Far BackClient Too Far Back
Client Positioning Client Positioning ErrorsErrors
Antero-Antero-posteriorposterior
Horizontal/Horizontal/MidsaggitalMidsaggital
Cervical SpineCervical SpineVertical/Vertical/ OcclusalOcclusal
Client Positioning Client Positioning ErrorsErrors
Horizontal-Horizontal-MidsaggitalMidsaggital
Client head twisted, Client head twisted, turned or rotatedturned or rotated
Client head tiltedClient head tilted
Client Head is Client Head is Twisted, Turned or Twisted, Turned or
RotatedRotated
Client Head is Client Head is Twisted, Turned or Twisted, Turned or
RotatedRotated
Client Head is Client Head is Twisted, Turned or Twisted, Turned or
RotatedRotated
Client Head is TiltedClient Head is Tilted
Client Head is TiltedClient Head is Tilted
Client Head is TiltedClient Head is Tilted
Client Positioning Client Positioning ErrorsErrors
Antero-Antero-posteriorposterior
Horizontal/Horizontal/MidsaggitalMidsaggital
Cervical SpineCervical SpineVertical/Vertical/ OcclusalOcclusal
Client Positioning Client Positioning ErrorsErrors
Vertical headVertical heador occlusal or occlusal
planeplaneClient head /chin is Client head /chin is tipped or tilted tipped or tilted downward or too downward or too lowlow
Client head /chin is Client head /chin is tipped or tilted tipped or tilted upward or too highupward or too high
Client head /chin is Client head /chin is not on the chin restnot on the chin rest
Client Head is Client Head is Tipped/Tilted Tipped/Tilted
Downward or Too LowDownward or Too Low
Client Head is TiltedClient Head is Tilted
Client Head is Client Head is Tipped/Tilted Tipped/Tilted
Downward or Too LowDownward or Too Low
Client Head is Client Head is Tipped/Tilted Upward Tipped/Tilted Upward
or Too Highor Too High
Client Head is Client Head is Tipped/Tilted Upward Tipped/Tilted Upward
or Too Highor Too High
Client Head is Client Head is Tipped/Tilted Upward Tipped/Tilted Upward
or Too Highor Too High
Client Head/Chin is not Client Head/Chin is not on the Chin Reston the Chin Rest
Client Head/Chin is not Client Head/Chin is not on the Chin Reston the Chin Rest
Client Head/Chin is not Client Head/Chin is not on the Chin Reston the Chin Rest
Client Positioning Client Positioning ErrorsErrors
Antero-Antero-posteriorposterior
Horizontal/Horizontal/MidsaggitalMidsaggital
Cervical SpineCervical SpineVertical/Vertical/ OcclusalOcclusal
Cervical Spine ErrorCervical Spine Error
Cervical Spine ErrorCervical Spine Error
Client Client spinal spinal column column is is slumpedslumped
Cervical Spine ErrorCervical Spine Error
Technique Technique ErrorsErrors
Client Client PositioningPositioning
Client Client PreparationPreparation
ExposureExposure
OperationalOperationalFilmFilm HandlingHandling
Client Preparation Client Preparation ErrorsErrors
UnsharpnessUnsharpnessAir Space Air Space ArtifactsArtifacts
ObjectsObjects
Client Preparation Client Preparation ErrorsErrors
ObjectsObjects
Prostheses, Jewelry Prostheses, Jewelry & Removable Item & Removable Item ArtifactArtifact
Apron/Thyroid Apron/Thyroid Shield ArtifactShield Artifact
Object ArtifactsObject Artifacts
Jewelry chain=black arrowJewelry chain=black arrow
Ghost image=arrowheadGhost image=arrowhead
Object ArtifactsObject Artifacts
ProsthesesProstheses
Lead Apron ArtifactLead Apron Artifact
Client Preparation Client Preparation ErrorsErrors
ObjectsObjects Air Space Air Space ArtifactsArtifacts
UnsharpnessUnsharpness
Client Preparation Client Preparation ErrorsErrors
UnsharpnessUnsharpness
Client MovementClient Movement
UnsharpnessUnsharpness
UnsharpnessUnsharpness
Client Preparation Client Preparation ErrorsErrors
ObjectsObjectsAir Space Air Space ArtifactsArtifactsUnsharpnessUnsharpness
Client Preparation Client Preparation ErrorsErrors
Air Space Air Space ArtifactArtifact
Tongue not on palate and Tongue not on palate and lips openlips open
Air Space ArtifactAir Space Artifact
Tongue Tongue not on not on
palate and palate and lips openlips open
Air Space ArtifactAir Space Artifact
Technique Technique ErrorsErrors
Client Client PositioningPositioning
Client Client PreparationPreparation
ExposureExposure
OperationalOperationalFilmFilm HandlingHandling
Exposure ErrorsExposure Errors
OverOverExposureExposure
DoubleDoubleExposureExposure
UnderUnderExposureExposure
UnderexposureUnderexposure
Exposure ErrorsExposure Errors
UnderUnderExposureExposure
DoubleDoubleExposureExposure
OverOverExposureExposure
OverexposureOverexposure
Exposure ErrorsExposure Errors
OverOverExposureExposure
UnderUnderExposureExposure
DoubleDoubleExposureExposure
Double ExposureDouble Exposure
Technique Technique ErrorsErrors
Client Client PositioningPositioning
Client Client PreparationPreparation
ExposureExposure
OperationalOperationalFilmFilm HandlingHandling
Operational ErrorsOperational Errors
CassetteCassetteResistanceResistance
IncompleteIncompleteExposureExposure
Not StartingNot StartingAt Home BaseAt Home Base
Incomplete Exposure Incomplete Exposure or Not Starting At or Not Starting At
Home BaseHome Base
Operational ErrorsOperational Errors
Incomplete Incomplete ExposureExposure
Not StartingNot StartingAt Home BaseAt Home Base
CassetteCassette ResistanceResistance
Cassette ResistanceCassette Resistance
Cassette ResistanceCassette Resistance
Technique Technique ErrorsErrors
Client Client PositioningPositioning
Client Client PreparationPreparation
ExposureExposure
OperationalOperationalFilmFilm HandlingHandling
Film Handling & Film Handling & Processing ErrorsProcessing Errors
StaticStaticElectricityElectricity
Debris/Debris/ScratchedScratchedScreensScreens
FilmFilmCrimpingCrimping
WhiteWhiteLight ExposureLight Exposure
Black, Black, tree-like tree-like artifactsartifacts
White White artifactsartifacts
Black Black zonezone
Finger-Finger-nail nail
artifactartifact