Cysts

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What are the three structural parts of a cyst?: 1 Central cavity (containing fluid, etc) 2 Lining (usually strat squa) 3 CT Capsule
How are cysts usually discovered?: Routine exam/xrays
Name the cyst characterized by a non-vital tooth, inflammation, radiolucent, derived from rest of Malassez, either asympomatic or acute pain.: Dental Granuloma
Name the cyst characterized by a non-vital tooth, cholesterol clefts, radiolucent, either asympomatic or acute pain.: Radicular/Periradicular/Periapical Cyst
Name the cyst that develops from fragments of an apical cyst after removal of a tooth.: Residual cyst
Name the cyst that is associated with the crown of a normal/supernumerary impacted tooth.: Dentigerous cyst
What is the origin of a dentigerous cyst?: Reduced enamel epithelium, after the crown has formed
Name the 2 most common sites for a dentigerous cyst.: 1 3rd molars 2 Maxillary cuspids
Dentigerous cysts usually occur from age ____ to ____, and is lined by ______ _________ epithelium.: 10-30, stratified squamous epi
Name 3 possible progressions of a dentigerous cyst.: 1 Ameloblastoma 2 Squamous cell carcinoma 3 Mucoepidermoid carcinoma (salivary gland tumor)
If a radiolucency is less than 2.5 mm, it is probably not a dentigerous cyst, but is probably⬦: Perifollicular fibrosis
Can you see an eruption cyst on an xray?: NO
Name the cyst that is a soft-tissue counterpart of a dentigerous cyst.: Eruption cyst
Name the cyst that develops in place of a tooth (no history of extraction or existing tooth).: Primordial cyst
What is the origin of a primordial cyst?: Remnants/degeneration of the enamel organ
Where is the most common location to find a primordial cyst?: 3rd molar area
T/F: Primordial cysts can be multilocular.: TRUE
Name the cyst that shows keratinization.: Odontogenic keratocyst
What is the origin of an Odontogenic keratocyst?: Dental lamina/cell rests
Odontogenic keratocysts are (rare/common) make up ___-____% of all odontogenic cysts. OKC affects ____-____ year olds. They are lined by (thin/thick) epithelium.: Common, 3-11% of all odontogenic cysts, 10-40 year olds. Thin
What is the most common location to find an Odontogenic keratocyst?: Mandibular molar area
T/F: Odontogenic keratocysts can be aggressive.: True, can cause tooth movement and resorption
Name the syndrome which features multiple Odontogenic keratocysts.: Jaw cyst-basal cell nevus-Bifid rib syndrome
T/F: Odontogenic keratocysts can be multilocular.: TRUE
On an xray, name two things that Odontogenic keratocysts may resemble (and cannot be differentiated from).: 1 Dentigerous cyst 2 Lateral periodontal cyst
Name a unique histologic feature of Odontogenic keratocysts.: Satellite cysts
T/F: Recurrence rate is high for Odontogenic keratocysts.: True, due to satellite cysts and wavy epi lining
Name a variant of Odontogenic keratocysts. Is its recurrence rate higher or lower than Odontogenic keratocysts?: Orthokeratinized odontogenic cyst. Recurrence is much lower (2% instead of 30%)
T/F: Gingival cyst of the newborn is rare.: False, it is found in 50% of all newborns!
What is the origin of Gingival cyst of the newborn and adult?: Remnants of the dental lamina
T/F: Gingival cyst of the adult is rare.: TRUE
Where is the most common area to find a Gingival cyst of the adult?: Mandibular bicuspid/anterior area
Name the cyst that is the bony counterpart to a gingival cyst of the adult.: Lateral periodontal cyst
T/F: Lateral periodontal cysts can be multilocular.: True, it would be called a Botryoid odontogenic cyst
Where is the most common area to find a Lateral periodontal cyst?: Mandibular premolar/cuspid area
Name the multilocular variant of a Lateral periodontal cyst.: Botryoid odontogenic cyst (grape-like cluster)
T/F: Recurrence rate is high for Lateral periodontal cysts.: False, it is low
Name the cyst that is more like a neoplasm than a cyst.: Calcifying Odontogenic Cyst (Gorlin cyst)
Where is the most common area to find a Calcifying Odontogenic Cyst (Gorlin cyst)?: Trick question - it's found equally in maxilla and mandible, but tends to be in the anterior area
Name a unique histologic feature of a Calcifying Odontogenic Cyst (Gorlin cyst).: Ghost cells, usually with calcifications (diffuse or clumpy)
Name the cyst that has glandular differentiation.: Glandular Odontogenic Cyst
Where is the most common area to find a Glandular Odontogenic Cyst?: Mandibular anteriors
What is a (better) synonym for a paradental cyst?: Buccal bifurcation cyst
Name the cyst that usually occurs on mandibular molars that have a history of pericoronitis.: Paradental/Buccal bifurcation cyst
What is the cause of Paradental/Buccal bifurcation cysts?: Infection stimulates Inflammation, which stimulates rests of Malassez to make enamel
What is the age predilection for Paradental/Buccal bifurcation cysts?: 20-30 years old
Name the most common site to find a Paradental/Buccal bifurcation cyst.: Mandibular second/third molars
Name the cyst that is small, white, and found on the palate of newborns. Name 2 synonyms.: Palatal cyst of the newborn. 1 Epstein Pearls 2 Bohn's Nodules
Name the cyst that is caused by ectoderm entrapped in median palatal fusion line and/or epithelial remnants of developing palatal salivary glands.: Palatal cyst of the newborn/ Epstein Pearls/Bohn's Nodules
What is one differential diagnosis for Palatal cyst of the newborn?: Gingival cyst of the newborn
Name the rare soft tissue cyst affecting the lower portion of the nasolacrimal duct.: Nasolabial or Nasoalveolar cysts
Nasolabial or Nasoalveolar cysts affect more (males/females).: Females
Name the characteristic histological feature of Nasolabial or Nasoalveolar cyst.: Psuedostratified columnar epithelium
Name the cyst that occurs between the roots of the maxillary lateral and canines.: Globulomaxillary cyst
What shape is a Globulomaxillary cyst, usually?: Pear-shaped
Name 3 differential diagnoses for Globulomaxillary cysts.: 1 Periapical cysts 2 Odontogenic cysts 3 Lateral periodontal cysts
Name the cyst that occurs in the incisive canal.: Nasopalatine Duct/Incisive Canal cyst
What is the soft-tissue counterpart of the Nasopalatine Duct/Incisive Canal cyst?: Palatine papilla cyst
Does the Nasopalatine Duct/Incisive Canal cyst affect (non/vital) teeth?: Vital
Nasopalatine Duct/Incisive Canal cysts usually occur in (males/females) age ____-_____.: Males, 40-60
What is the rule of thumb for Nasopalatine Duct/Incisive Canal cysts?: If it is less than .6 mm, it is probably just an enlarged incisive canal
Where is the most common location for Nasopalatine Duct/Incisive Canal cysts?: Between the maxillary centrals
What shape is a Nasopalatine Duct/Incisive Canal cyst, usually?: Heart-shaped
Name the cyst that is located posterior to the incisive papilla in the midline of the hard palate.: Median palatal cyst
Name the cyst that is lined by keratinized stratified squamous epithelium and is often filled with keratin.: Epidermoid cyst
Name the cyst that is lined by keratinized stratified squamous epithelium and is often filled with sebaceous glands, hair follicles, bone, muscle, etc.: Dermoid cyst
What other neoplasm does a dermoid cyst resemble?: Teratoma
Where is the most common location for an epi/dermoid cyst?: Floor of the mouth
If the patient has a bulge in the floor of the mouth/has no neck, the epi/dermoid cyst is (above/below) the mylohyoid.: Above
If the patient has a double chin, the epi/dermoid cyst is (above/below) the mylohyoid.: Below
Name the cyst that occurs on the midline, between the foramen cecum of the tongue and the suprasternal notch.: Thyroglossal duct cysts
What causes a thyroglossal duct cyst?: Epithelial remnants of the thyroid migration turn into cysts
What is the treatment for a thyroglossal duct cyst, and why?: Remove, because it may turn malignant
What % of thyroglossal duct cysts occur below the hyoid?: 70%
Name the cyst that comes from epithelium trapped in lymph nodes.: Cervical Lymphoepithelial cyst (Branchial Cleft Cyst)
Name the cyst that occurs in the lateral neck as an asymptomatic, slow-growing fluctuant mass.: Cervical Lymphoepithelial cyst (Branchial Cleft Cyst)
Name the cyst that occurs in oral lymphoid tissue, is yellow, and has no rete pegs.: Oral lymphoepithelial cyst
Where do 50% of oral lymphoepithelial cysts occur?: Floor of the mouth
Name the cyst that occurs in the maxilla, after a maxillary sinus surgery/extraction.: Surgical Ciliated Cyst of the maxilla
What type of lining does a Surgical Ciliated Cyst of the maxilla have?: Respiratory epi
What causes a surgical ciliated cyst of the maxilla?: Epi becomes implanted/trapped at the site of surgery and starts to proliferate and cavitate
Name the cyst that is similar to dermoid but has gastric/intestinal mucosa lining.: Heterotropic Oral Gastrointestinal Cyst/Anterior Median Lingual Cyst/Gastric Cystic Choristoma
What is the age and gender predilection for Heterotropic Oral Gastrointestinal Cysts?: Infants/young children, males
Where is the most common location for a Heterotropic Oral Gastrointestinal Cyst (2)?: 1 Tongue 2 Floor of the mouth
Name the pseudocyst that should be completely obvious on a radiograph.: Simple bone cyst/Traumatic Bone cyst
Why is a Simple bone cyst not a cyst?: It has no epithelium, and the cavity is empty
What is a key characteristic on the radiographs for a Simple bone cyst?: Scalloped border
What is the age group for Simple bone cysts?: Young adults
Are simple bone cysts associated with (non/vital) teeth?: Vital
What is the treatment for a Simple bone cyst?: Curette to start bleeding, then it heals on its own
Name the pseudocyst that has salivary gland tissue in it.: Lingual Mandibular Salivary Gland Depression (Static bone cyst/Stafne bone cyst)
Name the pseudocyst that radiographically occurs as an ovoid lucency between the mandibular canal and inferior border, with a sclerotic border.: Lingual Mandibular Salivary Gland Depression (Static bone cyst/Stafne bone cyst)
Name the uncommon vascular lesion of jaws/bones that resembles a "blood-soaked sponge".: Aneurysmal Bone Cyst
Do Aneurysmal bone cysts occur mainly in the maxilla or mandible?: Mandible
What is a differential diagnosis for an Aneurysmal Bone Cyst?: OKC
Name three other lesions that may be associated with an Aneurysmal Bone Cyst.: 1 Fibrous dysplasia 2 Hemangioma 3 Traumatic bone cyst
The mesial root of this tooth is the strongest and widest tooth: Mandibular 1st molar or #19 & #30
Ethylene Oxide is used for:: Heat sensitive instruments
Allergy to lidocaine use: Procaine (Novacaine)
This impression material must avoid moisture:: Polysulfide
What antidepressant is used for smoking cessation: Zyban (antidepressant)
Nitrous oxide smooths vascular smooth muscle: True or False: True
With syncope a patient will have constricted pupils True or False: False
Fibroblast has NO root attachment True or False: True
Quantity is a factor in absorption of xrays True or False: False
Where is the primary location for a tumor: Parotid gland
What is the major buffer in toothpaste: Bicarbonate
The maxillary 1st premolar has 2 roots, where are the roots located? mesial & distal or buccal & lingual?: Buccal & Lingual roots
Cerebral anoxia can be caused by severe shock? True or False: True
What is the most striking characteristic of a mandibular 1st premolar?: ML groove
The crown:root ratio of primary teeth is conger compared to crown:root of permanent teeth: True
Roots of primary teeth are bulky & thick at their cervical junction. True or False: False
Two root canals are commonly found in which tooth: Mesial root of mandibular 1st molars
Which tooth has a small afunctional cusp: Mandibular 1st bucuspid
The root of this tooth sometimes bifurcates into a facial and lingual root at the apical third: Mandibular canine
The only teeth with a cingulum are:: Anterior maxillary teeth
The most dominant groove seen on a mandibular 2nd premolar is: "Y" groove
The cervical cross section of mandibular incisor root is: Elliptical
Roots on primary teeth are _______ than permanent teeth: thinner
Cold sensitivity from a new amalgam restoration is caused by: Pulpal hyperemia
Alginate should be seperated from stone after: 1 hour
What is the conductor for galvanic shock: Saliva
Mercury ______set time & _____strength: increases set time and decreases strength
What prevents corrosion of amalgam: Silver
What keeps amalgam fillings from leaky margins: corrosion

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Number of cards 125