Lecture 1- Intro Flashcards
The first component radiographic interpretation including differential diagnosis is:
Proper imaging technique
In terms of differential diagnosis, we need both knowledge and experience including:
- vision
- cognition
- image interpretation
Proper imaging technique includes:
- manual
- cerebral
What can be seen in the following image?
mesodens
Radiographic description includes:
- single vs. multiple
- location
- relative proximity to adjacent structure
- size in dimensions
- outline (well demarcated vs. diffuse) (corticated vs. non-corticated)
- density (radiolucent, radiopaque, or mixed)
non-corticated:
does not have a radiopaque lining
corticated:
lesion has a radiopaque lining
If a lesion is radiolucent, what does this mean about the tissue that makes it up?
mostly soft tissue
If a lesion is radiopaque, this signifies:
mineralization
How do we describe the QUANTITY of a lesion?
- Single vs. Multiple
- Unilateral vs. Bilateral
How do we QUALIFY a radiograph?
- Location
- Size
- Relative Proximity to adjacent strucutres
- Outline
When QUALIFYING a radiograph, how might you describe the LOCATION?
- right vs. left
- anterior vs. posterior
- localized to area of dental arch
When QUALIFYING a radiograph, how might you describe the SIZE?
- dimensions in mm
(diameter, length, greatest dimensions)
When QUALIFYING a radiograph, how might you describe the RELATIVE PROXIMITY (DIMENSIONS) TO ADJACENT STRUCTURES?
- supplements the measurement
When QUALIFYING a radiograph, how might you describe the OUTLINE?
- well demarcated vs. diffuse
- smooth vs. irregular
- corticated vs. non corticated
When QUALIFYING a radiograph, how might you describe the DENSITY?
- radiolucent vs. radiopaque vs. mixed
- mild, moderate, or intense
Allows you to include and/or exclude disease processes based on an educated assessment of the process:
Differential diagnosis
For differential diagnosis, what type of information can you gather and analyze?
- history
- clinical findings (specific/unique signs & symptoms)
- Lab data
Oral radiology descriptive lesion groups include: (11)
- Periapical radiolucencies
- Pericoronal radiolucencies
- Inter-radicular or solitary radiolucencies
- Multilocular radiolucencies
- Ragged radiolucencies
- Generalized rarefactions
- Mixed radiolucent-radiopaque lesions
- Periapical radiopacities
- Solitary radiopacities
- Generalized radiopacities
- Radiopacities outside the jaws
Radiolucencies around the corn of impacted teeth:
pericoronal radiolucencies
- 58 year old male
- no sensitivity or pain
- no swelling or tissue changes
- further testing determines teeth are WNL
What can be noted when looking at this image?
- edentulous patient
- atrophic maxillary alveolar ridge
- Lesion
Location: right side of mandible/ inferior border
Density: radiolucent
Outline: well-demarcated
Quantity: single, unilocular
If a lesion is located in the alveolar bone, it may be more of an:
If its in the basal bone, its may be more likely to be:
odontogenic tumor
non-odontogenic (unless extending from alveolar bone)
Presents:
- 58 year old male
- no sensitivity or pain
- no swelling or tissue changes
- further testing determines teeth are WNL
Clinical Findings:
1. edentulous patient
2. atrophic maxillary alveolar ridge
3. Lesion
Location: right side of mandible/ inferior border
Density: radiolucent
Outline: well-demarcated
Quantity: single, unilocular
Differential Diagnosis?
- Stafne cyst
- Gorlin cyst (calcifying odontogenic cyst)
- Ossifying fibroma
- Neurofibroma
- Calcifying epithelial odontogenic tumor
FMS:
Full Mouth Survey
Gives you an idea of how much of the tooth is supported by the bone:
crown root ratio
The radiographic crown:
tooth structure NOT supported by bone
What do large nutrient canals signify?
chronic inflammatory disease process
What is signified by the arrows?
alveolar crest
What is signified by the arrows?
floor/wall of maxillary sinus
What is signified by the arrows?
zygomatic border
What is signified by the arrows?
zygomatic process of the maxilla
What is signified by the arrows?
floor of nasal fossa
What soft tissue structure can be seen in this image?
nasolabial fold
What is signified by the arrows?
nasolabial fold
What is signified by the arrows?
alveolar crest
What is signified by the arrows?
external oblique line
What is signified by the arrows?
internal oblique line
What is signified by the arrows?
internal oblique line
What is signified by the arrows?
inferior alveolar canal
What is signified by the arrows?
inferior mandibular border
What is signified by the arrows?
floor of nasal fossa
