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16 Cards in this Set
- Front
- Back
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rarefying osteitis:
def, infiltrate encompasses borders PDL LD |
-inflammatory infiltrate, mainly lymphocytes w/ neutrophils
-could be cyst, abscess, or granuloma -irregular borders -PDL lost apically -enlarged or lost periapically |
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periapical granuloma:
def infiltrate symptoms |
(granular tissue)
-chronic inflammatory infiltrate -mainly lymphocytes, plasma cells and histiocytes (macrophage in connective tissue). also mast cells. -usually asymptomatic |
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radicular cyst:
forms when frequency symptoms (2) traits (3) |
-epithelial cells in PDL proliferate and undergo cystic degeneration b/c of nonvital tooth
-most common cyst -always w/ nonvital tooth -usually asymptomatic -can have swelling -hydrolic, well-corticated, radiolucent, (associated w/ nonvital tooth) |
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hydrolic
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-growing evenly in all directions
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what features may designate a radicular cyst from rarefying osteitis?
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Cyst:
-corticated border -hydrolic shape RO: -irregular border -gradually merges into adjacent bone |
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sclerosing osteitis
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-deposition of extra periapical bone due to inflammation
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cemento osseous dysplasia:
def types (3) stages (3) |
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-periapical: mand ant area -focal: post in one quadrant -florid: involves 3 or more quadrants -completely RL, mixed RL/RO, completely RO |
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periapical cemental dysplasia:
(2) |
-localized
-normal bone is replaced by fibrous tissue and cementum-like material |
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cemento osseous dysplasia:
population associated teeth epicenter lesions appear |
-middle-aged black and asian women
-vital, may have hypercementosis -at apex of mand ant teeth -well defined w/ RL border surrounded by RO band of sclerotic bone |
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focal cemento osseous dysplasia:
characteristics appearance |
-same as normal COD, but w/ post teeth
-RO/RL area associated w/ apex |
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diff btw osteosclerosis and sclerosing osteitis
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-SO is as'ed w/ trauma/inflammation, while OS is not. Etiology of OS is unknown
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enostosis:
def (2) location appearance |
-island of bone w/in bone
-non-inflammatory -more common in mand, but can be anywhere -blends in w/ surrounding bone (no RL soft tissue capsule) |
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how is enostosis diff than SO??
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-enostosis has regular border
-enostosis not as'ed w/ trauma -??? |
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hypercementosis:
def etiology symptoms LD/PDL treatment |
-excessive deposition of cementum on root
-unknown. can be associated w/ trauma, inflammation, Paget's disease, and hyperpituitarism -none -LD and PDL encompass the extra dentin and cementum!! -not necessary |
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external resorption (3)
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-odontoclasts resorb outer surface of tooth
-usually root, but can be crown of unerupted tooth -etiology unknown |
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internal resorption:
pathology etiology location population |
-occurs w/in pulp chamber, canal
-etiology unknown, maybe as'd w/ pulpal inflammation -permanent CIs and molars -males 40-50yo |
