Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
11 Cards in this Set
- Front
- Back
|
Dentigerous cyst
|
Crown of unerrupted/impacted teeth
Apx 1/3 of all odontogenic cysts Tx via currettage |
|
|
Eruption cyst
|
soft tissue "counterpart" to dentigerous cyst
Blush Gingival swelling Usually self-curative upon erruption |
|
|
Radicular/Periapcial cyst
|
Most common JAWBONE cyst
APEX or Lateral Root surface of NONVITAL tooth cause ROOT RESORPTION and/or REPLACEMENT OF ADJACENT TEETH Tx with ENDO, poss curretage, poss extraction FAILURE to remove entire cyst can cause RESIDUAL CYST |
|
|
Residual Cyst
|
Failure to remove entire RADICULAR/PERIAPICAL cyst
|
|
|
Lateral Periodontal Cyst (LPC)
|
ASYMPTOMATIC *****UNILOCULAR only****
lateral ROOT surface in CANINE/PM area ADJACENT TEETH= VITAL HISTO: Lining= thin layer of Sq. or Cu. Epithelium. with areas of plaque-like epithelail thickenings Tx- Enucleation (may reccur) |
|
|
Botryoid odontogenic cyst
|
****MULTILOCULAR only******-HISTO: Lining= thin layer of Sq. or Cu. Epithelium. with areas of plaque-like epithelail thickenings
Tx- Enucleation (likely to reccur) |
|
|
Asymptomatic Sq. or Cu. Epithelial lining with occasional plaque-like epithelial lining thicknesses @ a) Lateral root surfaces b) apical soft tissues
1. What types of cysts present like this? 2. Hiow are they distinguished? 3. Where are they most commonly seen? 4. Adjacentt teeth vital or not? 5. Tx? 6. Reccurent? |
1. a) LPC and Botryoid odontogenic cysts b) Gingival cyst of adult
2. UNILOCULAR= LPC, soft tissue cyst of adult MULTILOCULAR= Botryoid 3. PM/CANINE area 4. VITAL 5. ENUCLEATIOn 6. Yes esp Botryoid |
|
|
Gingival cyst of the adult
|
Soft tissue Counterpart of LPC
Gingival Swelling in apical canine/pm area Often Unilocular sq. or cu. epithelial lining with occasional epithelial lining thicknesses) |
|
|
Odontogenic keratocyst OKC
|
10% of all odontogenic cysts
mandibular molar-ramus area If tooth associated than crown of impacted, interproximal, apical. ***AP (not BL) Expansion**** ***less obvi bony expansion*** ***is lined by a uniform 6-10 cell-thick parakeratotic corrogated SSE with prominent columnar basal cell layer with a flattened junction between in and the underlying CT and a lumen often filled with keratin scales*** Tx depends on size/extent and is usually LONG TERM bc Reccurence is common thus.. ***FOLLOW UP REQ*** mult OKCs (along with other defects) are seen in the AD disease of NBCCS SINGLE OKCs often have same suppressor gene crome 9 PATCHED mutation thus may be renamed KOT (keratogenic Odontogenic Tumors) |
|
|
Nevoid basal cell carcinoma syndrome NBCCS
|
genetic=auto. DOMINANT!!!
germline chromosome 9 suppresor gene PATCHED gene mutations!!!! multiple skin BSCs palmar-plantar pitting rib anomalies intracranial calcifications, ORALLY= multiple OKCs!! |
|
|
Keratogenic Odontogenic Tumors (KOT)
|
UNILOCULAR new name for OKCs with mutations in the PATCHED suppressor gene of chromosome 9 in individuals who DONT have the AD dsorder of NBCCS.
|
