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35 Cards in this Set
- Front
- Back
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What is circular and found centrally on the mandible
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-genial tubercles and lingual foramen
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where is the mylohyoid ridge?
what is it the roof of? don't confuse MH ridge with _______, which is more cervical |
-by roots of 1st/2nd molar (superimposed)
-submandibular salivary gland -external oblique line |
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the MH ridge blends in w/ ________ posteriorly
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-internal oblique ridge
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Submandibular gland
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-below MHR
-can be very distinct radiolucent area -useful for IDing post area for edentulous pts |
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If only 1 line of the IA canal is visible, it is almost always the ________ border
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-inferior
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nutrient canals
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-btw roots of adjacent teeth
-appear radiolucent anteriorly on mand -appear radioopaque posteriorly |
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mental foramen
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-usually below 2nd premolar
-usually btw distal of 1st premolar <-> mesial of 1st molar -can be superior, if bone has been resorbed |
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sup/inferiorly running line on midline of maxilla
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-palatine (median palatal) suture
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radiolucent circular area superimposed on the roots of the central max inc's
if > 10mms |
-incisive foramen
-consistent w/ nasopalatine canal cyst?? |
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zygomatic process
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-upper border of zyg bone
-radioopaque -U, V, or J shaped |
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maxillary tuberosity
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-bone post to last max molar
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incisive fossa (?)
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-indistinct radiolucency
-near max lat inc |
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hook of bone behind max tuberosity
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-pterygoid hamulus
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ant nasal spine
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-like downward triangle
-generally sup to root apexes. |
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Y line of Ennis
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-landmark for canine
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how can tell apart floor of nose vs floor of sinus
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-nose is relatively straight
-sinus is relatively curvy |
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inverted radiolucent teardrop post to maxilla
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-pterygomax fissure
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punched out
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well defined black hole
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corticated
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-thin white line around lesion
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sclerotic
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-thick white line around lesion
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invasive periphery
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-associated w/ malignant lesions/cancer
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only thing that can displace IA canal superiorly
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-fibrous dysplasia
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lesion w/ many lobes
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-multiocular lesion
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dentigerous cyst (4: 3 description, 1 displacement)
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-completely RL
-well defined -corticated (thin RO band) -usually displaces tooth apically |
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Stafne's defect (4)
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-always inf to IA
-from 2nd molar -> canine -thick corticated border -normal (usually salivary gland tissue) |
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cartilagious lesions tend to be in the ________ region
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-condylar
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if epicenter of lesion is w/in max antrum (?), _______
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-it is not of odontogenic tissue
(as opposed to a lesion that has grown into the antrum from the alveolar process) |
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well defined lesions tend to be ______.
Ill-defined lesions tend to be ___________. |
-benign
-malignant |
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punched out borders (not corticated) could be
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-multiple myeloma
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cortication shows that ______
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-there is reactive bone formation
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sclerotic margin
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-wide, RO border
-indicates slow reactive growth |
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soft tissue covering
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-indicated by a black outline around a RO lesion (b/c soft tissue is RL)
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odontoma
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-tooth like body in jaw
-RO w/ RL line w/ RO lamina dura line |
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NO soft tissue capsule around a lesion implies
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-tx most likely NOT necessary
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rarefying osteitis (3)
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-includes cyst, abscess, and granuloma
-ill defined RL lesion -gradually merges w/ surrounding bone |
