Radiographic Interpretation of Periapical Conditions Part 2 Flashcards
New bone formation on the bone surface as a result of periosteal stimulation
Periosteal reaction
(typical of osteomyelitis)
Radiopaque islands of bone on a radiolucent background
Sequestrum
With oseomyelitis you can have a reaction in the __ causing a layer of new bone to form
periosteum
What are some anatomical features that can look like periapical inflammatory disease
incisive foramen
mental foramen
maxillary sinus
Altered bone metabolism - cancellous bone is replaced by a mixture of fibrous connective tissue containing varying amounts of immature, abnormal bone
Periapical cemento-osseous dysplasia
Mimic periapical inflammatory disease but teeth are vital
Periapical cemento-osseous dysplasia
Periapical cemento-osseous dysplasia is most common in the
anterior mandible
Periapical cemento-osseous dysplasia is most common among
non-caucasian women
Periapical cemento-osseous dysplasia is symptomatic
False
(No treatment is needed)
When the cemento-osseous dysplasia presents as a single lesion in posterior regions
Focal cemento-osseous dysplasia
(Has a radiolucent rim around it - no treatment needed)
When the cemento-osseous dysplasia presents as multiple bilateral lesions (possibly both jaws)
Florid cemento-osseous dysplasia
Florid cemento-osseous dysplasia is common in women of
african descent
Florid cemento-osseous dysplasia is usually asymptomatic (usually just a radiographic finding) and in some cases __ and __ are present
expansion and pain
If dysplastic bone becomes exposed __ may develop
osteomyelitis
(Want to avoid this bone being exposed to the oral cavity!)
Localized growth of cortical bone into the cancellous bone space
Idiopathic osteosclerosis
(dense bone island / Enostosis)
Idiopathic osteosclerosis is most commonly well-defined, located in the __
mandibular molar and premolar area
Persistent radiolucency after successful endodontic therapy - dense connective tissue (radiolucent) surrounded by normal bone
Fibrous scar
(Does not change overtime)
With fibrous scars the surrounding healing bone may present __ or __ patterns
Concentric or radiating
What is important for diagnosing a fibrous scar
Clinical correlation
What is necessary to diagnose between fibrous scar, bone healing, periapical inflammatory disease
Context!
(clinical exam, compare current and previous images)
Explain the SLOB rule
The thing further from the camera moves in the same direction as the camera
The thing closer to the camera moves in the opposite direction
(The palatal root of a tooth cant be seen head on but is you move the tube head to the left the palatal root will be visible to the left)
Same = Lingual
Opposite = buccal
