Radio-opaque lesions Flashcards
Torus palatinus is a?
hyperplasis
Torus palatinus - describe
palatal torus / bony protuberance at the midline of the palate
Torus palatinus radiographic features
location, periphery and shape, internal structure?
Located - hard palate
periphery and shape – well defined, convex or lobulated
internal structure - homogeneously and radio-opaque
Torus mandibularis is?
a hyperplasia
describe Torus mandibularis
mandibular tori - bony protberance on the lingual aspect of the mandible close to PM
Torus mandibularis radiographic features?
location, periphery and shape, internal structure?
lingual and bilateral
periphery and shape - sharply demarcated
internal – homogenously radio-opaque
hyperostosis is?
other hyperostosis
- small regions of osseous hyperplasia
- most commonly on the buccal surface of the maxilla
is hyperostosis a pathology
no – just excessbone within that region
so can be associated with the tori
hyperostosis radiographic features
location, periphery and shape, internal structure?
maxillary alveolar process - super-imposed on teeth
periphery- well defined or poorly
internal - radio-opaque and homogenous
dense bone island
enostosis, periapical idiopathic osteosclerosis
localized growth of compact bone
radiographic features of dense bone island
location, periphery and shape, internal structure effects?
location – madible > maxilla
PM-molar region
periphery - well defined and NO CAPSULE
internal structure - radio
may resorb roots but PROBABLY NOT
hypercementosis looks like?
excess cementum over roots but the PDL and lamina dura are in tact
odontoma disease mechanism
radiographically and histologically characterized by the production of mature enamel, dentin, cementum and pulp
can arise off cortical thickness
odontoma true benign neoplasm?
no - arise off of he
osteoma disease mechanism
may arise from cartilage or embryonic origin
- can go into sinus and onto the mandible
clinical features of osteoma
> 40 , asymetry caused by the swelling and painless, cortical type in men and cancellous in woman
osteoma location
location - mandible > maxilla, lingual side of ramus of the mandible or inferior mandibular border apical to molars, condyle and coronoic process
paranasul/ frontal sinus
osteoma radiographic features
periphery, internal structure, effects on surrounding?
Periphery - well defined
internal - uniformly radio-opaque
effects on surrounding - displacement of adjacent structures
osteoma DD?
see slide
symmetry with osteoma?
no – asymmetric - how differentiate with tori (usually seen bilateral)
symmetry with osteoma?
no – asymmetric - how differentiate with tori (usually seen bilateral)
why worry about gardners syndrome?
yes - can transform into malignancies
- especially when we start to see more than 5 polyps
gardners syndrome
a variant of familial adenomatous polyposis (FAP)
gardners syndrome inheritance pattern?
autosomal dominant characterized by GI polyps, multiple osteomas, and skin and soft tissue tumors
percent risk polyps have of undergoing malignant transformation?
100%
radiographic feature of gardners syndrome
multiple dense bone islands
osteomas are most commonly seen in frontal, mandible, maxilla, and sphenoid bones
more than 5 dense bone islands should consider a syndrome
multiple unerupted teeth permanent and supernmerary
radiographic feature of gardners syndrome
multiple dense bone islands
osteomas are most commonly seen in frontal, mandible, maxilla, and sphenoid bones
more than 5 dense bone islands should consider a syndrome
multiple unerupted teeth permanent and supernmerary
cemento-osseous dysplasia three variants
- peri-apical COD
- focal COD
- florid COD
Peri-apical cemento-osseous dysplasia definition
localized change in normal bone metabolism , resulting in cancellous bone replaced by fibrous tissue and cementum like material
Peri-apical cemento-osseous dysplasia features
middle aged individuals, females >males , more common in blacks
cemento-osseous dysplasia three variants test same?
YES – starts off at radiolucent to tooth structure and ALL TEETH WILL TEST VITAL
difference between peri-apical __ and the periapical cemento-osseous dysplasia
Peri-apical lesion – TOOTH IS NON-VITAL AND WITH THESE THE TOOTH TEST VITAL
- What do we do for vital teeth –> not doing treatment
Florid Cemento-osseous dysplasia definition
FCOD is a wide spread of
PCOD
Normal cancellous bone replaced by fibrous tissue and cemento-osseous tissue, poorly vascularized
Florid Cemento-osseous dysplasia INITIAL PHASE?
RADIO-LUCENT – like all the variants
importance of vitality test?
MUST DO THIS as Cemento-osseous dysplasia because do not want endo treat if do not need to
odontoma synoym
odontogenic hamartoma
complex odontoma
nondescript mass of dental tissue
compound odontoma
multiple well defined teeth
clinical feature of odontoma
most common and interfere with eruption
radiographic features of odontoma
location, periphery and shape, internal structure effects?
Location – compound = anterior maxilla w/ crown of unerupted teeth
complex= mand 1st and second molar
periphery - well defined, smooth or irregular, corticated border with a radiolucent area adjacent
internal– radio-opaque
compound – tooth like
complex – irregular calcified
effects – impaction, malpositioning, diastema, malformaiton
root fragments
- Dense structure that does have some pdl and lamina dura coming out
- Pdl widened around the root strucure
○ So have som type of periodontal lesion or inflammation has taken place
- Pdl widened around the root strucure
Top middle - retained root tip
- CAN SESE PDL AND LAMINA DURA AND PULP CANAL RUNNING THROUGH
Onto the periapical –>
Vs. dense bone island - radio-opaque WITH NO CAPSULE OR CORTICATION AROUND I