Juan F. Yepes, DDS, MD
Normal RadiographicAppearances / Anatomy -
Juan F. Yepes, DDS, MD, MPHAssistant Professor
Division of Oral Diagnosis, Medicine and RadiologyODM 820 Spring 2009
Juan F. Yepes, DDS, MD
Diagnosis vs. Interpretation
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Diagnosis is the responsibility of the clinician caring for the patient.
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Interpretation is the result of evaluation of specific circumscribed tests or investigative procedures, such as radiology, and may be carried out by a specialist or the clinician caring for the patient.
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Diagnosis (dia: through; gnosis: knowledge) is the result of gathering knowledge via the history, clinical examination, and any other investigative procedures that are deemed necessary.
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
It is possible that the radiologic interpretation may seem to provide all of the information that is needed for the diagnosis...
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
…but it must still be correlated with the clinical findings before a diagnosis is made.
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Terminology is of importance. It will guide us in organizing our thoughts, allow us to search for information that we need, explain this to our patients, and communicate accurately with our colleagues.
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Radiolucent An adjective used to describe any substance (part of the patient) that readily permits the transmission of x rays.
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Radiopaque An adjective used to describe any substance (part of the patient) that blocks the transmission of x rays.
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Note Both adjectives refer to the object not the image on the radiograph. The terms are relative. Bone is more radiopaque than soft tissue, but more radiolucent than enamel.
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Density An adjective used to describe the ability of the film (or part of the film) to block the transmission of light. In other words, it refers to the “blackness” of all or part of the film.
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Contrast The difference in density of two neighboring areas on the radiograph (usually determined using a stepwedge).
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Detail The visibility of the fine structure in the image of the object under investigation.
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Definition The sharpness of the image of the fine structure of the object under investigation.
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Relative Radiopacities/Radiolucencies
Most Radiopaque
Most Radiolucent
Metal (restorations, suture, bullet fragments) Radiopaque white restorations and cements Enamel Dentin Cementum Cortical Bone Cancellous Bone Calculus, dystrophic calcification Soft tissues (including normal cartilage) Body Fluids Radiolucent white restorations and cements Fat Air
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
CementMetal (Amalgam)Enamel
DentinCementum
Soft tissue (Pulp)
Soft tissue (Periodontal ligament)
Soft tissue (Gingiva)
Air
Cortical bone
Cancellous bone
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Radiographic Appearances of
Teeth
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Pulp Chamber And
Root Canal
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Alveolar Process and
Alveoli
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Alveolar process
Alveolus
Basal bone
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Lamina Dura
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Periodontal Ligament Space
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Crest of the
Alveolar Process
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Juan F. Yepes, DDS, MD
Normal Radiographic Appearances
Juan F. Yepes, DDS, MD
CONCLUSIONS
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