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steven johnson syndrome - severest form of erythema multiforme
radiation therapy often leads to rampant caries because....?
- caries often found surrounding the gum line.
- found on MAXILLARY denture areas
- due to ill-fitting dentures.
- raised, redish-pink bumps, chronically inflammed underlying connective tissue. red b/c of superimposed fungal infection.
(aka denture-induced fibrous hyperplasia)
- due to ill-fitting denture flange rests
- elongated folds in mucobuccal fold area
denture stomatitis is a...
fungal infection which presents itself as erythematous mucosa under a denture.
12 yr old patient, has had lesion since birth. bleeds occassionally when eating. What is it?
hematoma is red to purple-bluish, does NOT blanch, does not last more than 7-10 days.
- deep red or bluish mass that blanches
- common on tongue
Varicostities could not be seen in this young patient.
does not blanch. just "popped up" after eating lunch.
- trauma related
28 yr old HIV post.
injury caused by clinicians are called....
are periapical abscesses pain free?
is the tooth vital or nonvital?
no, they're v. painful. unless there is a fistula for drainage.
if a patient has either a periapical granuloma or a periapical cyst, would the tooth be vital or nonvital?
periodontal abscesses usually involve a..
non vital tooth?
all the following are ex. of nonvital teeth:
periapical abscess, periaplical granuloma, radicular cyst
radiopacity is noted. tooth is asymptomatic and non-vital.
(aka focal sclerosing osteomylitis), always assoc. w/ non-vital teeth.
dental granuloma, also assoc. w/ non-vital teeth, but are radiolucent.
hypercementosis would have the perio ligament surrounding the opacity
the medications isoniazid and rifampin are associated with what disease?
enlargement of cervical nodes referred to as....?
scrofula or tuberculous hymphadenitis
a complete or almost complete congenital lack of teeth.
a hutchinson's incisor is a ....
screwdriver shaped incisor. resulting from the prescence of congenital syphillis during tooth development.
hypoplasia of this tooth is termed..:
hypoplasia of a SINGLE tooth. (vs. systemic hypoplasia)
enamel only effected
pitted, soft, chips away easily
all teeth are effected
brown and yellow molted looking
- Amelogenesis imperfecta
similar in looks to tetracycline stain (bluish stain)
needs radiographs to differentiate
effects the entire dentition
family members would have the same condition, hereditary.
effects odontoblast, there produces defective dentin and pulp.
*in this photo: just the anterior baby teeth exhibit dentiongenesis imperfecta
this patient's xrays indicate she has...?
only enamel is effected (moth-eaten appearance)
dentin roots reach normal length. (so it can't be dentinogenesis imperfecta)
these radiographs is consist w/ what inheriant disease?
teeth roots have not reached normal length, plus she has fillings which represent the chipping away of enamel.
primary teeth more effected than permenant teeth
radicular dentin dysplasia exhibit shorten roots, but the enamel does not chip away.
regional odontodysplasia, "ghost-like" very think enamel and dentin
- normal crown, no chipping.
- both primary and permanent teeth
contact dermatitis is a type what hypersensitivity?
what organimsm causes this?
which represents the primary form of infection resulting from same organism?
Varicella zoster virus
herpes zoster is also known as shingles
- unilateral, painful
- all 3 branches of Trigeminal Nerve can be affected.
what illness and organism causes this?
syphillis is caused by Treponema palladium
Child has flesh colored warts on lip and finger. most likely to be...
- transmitted through finger sucking/biting
- usually white, rough, papillary nodule
pink, multiple, diffuse warts on mouth or fingers
- sexually transmitted
- papilloma virus
vesicles found only on soft palate, fever present cause by coxsackie virus
what bacteria causes NUG?
borrelia vincentii (a spirochete), proventella intermedia and fusiform bacillus
7 yrs old, mild fever, malaise, multiple intraoral vesicles and ulcerations. red painful gingiva.
collection of numerous "miniture teeth"
they are also implacted, surrounded by a thin r-lucent halo
r-opague mass that does not resemble teeth
most common form of odontogenic tumor?
odontomas, compound odontomas. "Miniture teeth"
pt max has enlarged, creating spaces between teeth. "cotton-wool" appearance. Elevated serum alkaline phosphatase. Pt most likely has..
slow growing chronic bone disease
- higher levels of alkaline phosphotase is diagnostic
Disease due to hypersection of growth hormones, enlargement of extremities. Oral manifestations include: enlarged mandible, class III occlusion, crossbite and macroglossia.
"fish-like" due to absence of zygomatic arch. high palate.
intestinal polyps and oral pigmentated macules
intestinal polyps, odontomas, osteomas and supernumerary teeth
2 anomilies found in the lateral incisor
- pulp stone
- external resorption
this periapical cyst is also known as a ______ cyst.
radicular cyst are most commonly associated with caries.
dentigerous cyst develops where?
around the crown of an unerupted/impacted tooth.
also known as a follicular cyst.
an odontogenic cyst which develops in place of a tooth is called a...?
- primordial cyst
- *this could not be a developing tooth follicle based on the age of the patient (28 yrs)
what kind of cyst is this?
it's a dentigerous cyst, aka a follicular cyst, not that the radiopague line extends around the crown of the third molar.
Guess patient's age and what type of cyst is on the left side.
12 yrs, dentigerous/follicular cyst.
cyst extends around crown of unerupted 3rd molar.
12 year molars are present but the roots have not fully formed, therefore.. pt is 12 yrs old or a little more.
- G = gingival cyst (soft tissue)
- E = eruption cyst
- L = Lateral periodontal cyst - always between mandibular canine and 1st premolar
- R = residual cyst, left behind after tooth w/ periapical cyst is extracted
- P = periapical (radicular) cyst, apex of non-vital tooth
- D = dentigerous (follicular cyst) - always found around unerupted or impacted tooth. attached to CEJ
- OKC = odontogenic keratocyst - most often in 3rd molar ramus area, often multilocular/resembles ameloblastoma. needs biopsy.
"heart-shaped", developmental, non-odontogenic cyst between max incisors is most likely a:
nasopalatine cyst aka incisal canal cyst
"pear-shaped" radiolucency between max canine and lateral incisor
after surgical intervention the histology report on this "cyst-like" lesion shows it contained submandibular salivary gland tissue. the lesion is most likely a...?
stafne's (static) cyst
variant of normal
- pseudo cyst
- located near ramus, under the mandibular canalfilled with salivary gland tissueunilocular
pt 9 yrs old, no symptoms, r-lucent lesion, empty cavity that then filled with blood when found by surgeon. most likely a..?
traumatic bone "cyst"
radiolucency found at the apex of the first pre-molar of the 9 year old patient is most likely a...?
an open apex of a still forming tooth
- does not resemle teeth
- surrounded by thin r-lucent halo
multilocular, soap-bubble r-lucency, in mandible in 3rd molar-ramus area.
- epithelial origin
- expands bone, jaw swelling
benign bone tumor that is sharply defined r-opague mass of mature normal looking bone.
what Ig is associated with allergies?
Hypercementosis "club root"
surrounded by normal perio ligament space
osteitis, ligament does not surround opacity.
systemic disease which have supernumerary teeth as part of the oral manifestations include:
cleidocranial dysostosis (dysplasia)
- less teeth
- peg-shaped teeth
- sparse blonde hair
- no eyebrows
- few sweat glands
- heat intolerant
Cleidocranial dysostosis (dysplasia)
- cranium enlargement
- missing claviacles
- multiple impacted supernumerary teeth. "3rd set of teeth"
Class I = pits and fissures
Class II = involves proximal of posterior
Class III = proximals of anterior
Class IV = involes incisal edge of canines and incisors
Class V = cervical third of any tooth
incisal third is defective, the rest is normal
what are these radiopacities?
retained deciduous root tips.
note: opacity is surrounded by radiolucency, consisent with periodontal ligament and lamina dura.
malignant tumor of epithelium is called a
squamous cells, basal cells, glands or ducts, odontogenic cells
malignant tumors of connective tissue are called
connective tissue, adipose (fat) tissue, nerve, bone, blood vessels and lymphatics.