OEQ Flashcards
As odontogenic infection progresses from early to late stage, anaerobic bacteria make up the elate stage infection almost entirely.
Streptococcus is the amino acid bacteria that makes up aerobic bacteria
T, T
A patient that is a heavy drinker/alcoholism has decreased immune function.
A patient with impaired renal ability has decreased immune function
T, T
I &D is a contraindication for treatment of cellulitis.
There is a chance of spread of infection from surgical intervention.
F, T
Signs of inflammation. Trismus comes from pterygomandibular .
true
18 year old male presents to you office. The swelling is firm to touch, large radiolucency on Arya. What is the next step.
Aspirate
Which of the following does not describe cellulitis
localized collection of pus (abscess)
What is the main thing you want to do in treatment of any type of odontogenic infection:
identify & excise cause of infection
Bacteriostatic antibiotic is better than bactericidal.
false - bactericidal KILLS
A patient comes in with an ulcerated 5mm white lesion on the dorsal side of her tongue. The patient is a heavy drinker and smoker, the biopsy comes back and says the lesion is “chronic inflammation”. What is the next step?
Take another sample of the lesion to make sure their aren’t tumor cells
List the primary maxillary spaces:
Canine, Buccal, Infratemporal
Max says CARRIE BUYS IGLOOS
List the primary mandibular spaces:
Manny likes SUBS & BOOTY
Buccal, Sublingual, Submandibular, Submental
Secondary fascial spaces:
Lateral pharyngeal
Retropharyngeal
Masseteric
Pterygomandibular
Superficial and deep temporal
Prevertebral
An infection near the maxillary first molar will most likely spread to:
buccal space
Which one does not use an extra-oral approach to drainage:
Infraorbital
The ___ separates the sublingual and submandibular spaces:
mylohyoid muscle
A patient comes in with swelling and you are unable to palpate the border of the mandible. What space is mostly likely involved?
Submandibular
(fluid underneath the mandible so you won’t feel the bone)
A patient comes in with swelling and you are able to palpate the floor of the mouth next to the swelling. Where is the most likely space?
Sublingual
In normal health, subfascial spaces do not exist.
Most infections don’t want to spread to bone like osteomyelitis/
True, True
What is the standard radiograph for osteomyelitis?
CT
What radiograph do you get to visualize the extend of odontogenic infections better?
CT
When you send a sample (biopsy) to the lab, what do you order/expect to get back?
- microbial analysis
- histological assessment
- C&S
(all of the above)
Ludwigs angina spaces:
- Sublingual
- Submandibular
- Submental
NOT SUBMASSETERIC
Patient comes in with cavernous sinus thrombosis secondary from infection. What else do you expect to see?
- Marked edema
- Congestion of eyelids and conjunctiva
Chronic osteomyelitis is _____ (how painful) and continues to progress
- minimal pain early on
- extensive pain in late stages
Involucrum definition:
A layer of new bone growth that forms around existing bone in response to infection
Garre’s Osteomyelitis is also known as:
chronic refractory myelitis
-proliferative periostitis
- periostitis ossificans
What is the only form of osteomyelitis that you would use HBO therapy for?
Chronic refractory osteomyelitis
____% of demineralization needs to occur for osteomyelitis to show up on x-ray
30-60%
What is the standard x-ray for osteomyelitis?
CT scan (pano initially)
What is not part of the surgical treatment for osteomyelitis…?
(what is= sequestrectomy, saucerization, and decortication)
Patient comes in and has persistent lesion after 5 days with no apparent etiology. Take surgical approach after two weeks if local therapy has not worked.
Both true
Indications for excisional biopsy:
Excisional= total excision of lesion for microscopic study
- slow growing lesions that appear benign on clinical exam
- remove of entire lesion
Indications for incisional biopsy:
- lesion too large to remove entirely without having established diagnosis
- suspicion of malignancy
In which instance would you use an incisional biopsy:
- a 4cm white lesion on the border of the tongue
- a 1cm lesion of papilloma
- a 2cm bony exostosis lesion
a 4cm white lesion on the border of the tongue
What size of needled we use for aspiration in our OS department?
18 gauge
Biopsy is transported what medium?
10% formalin
Immunofluorescent biopsy is transported what medium?
Michels transport medium
What is Carboys solution used to treat?
OKC
Why are OKCs recurrent?
Satelite/daughter cells
Which one is derived from the dental lamina?
OKC
also:
- dental lamina cyst of newborn
- latetral periodontal cyst
- glandular cyst
What is derived from rest of malassez?
- periapical cyst
- residual cyst
What is derived from reduced enamel epithelium?
dentigerous cyst & eruption cyst
What is the best treatment for a 60 year old man whose cystic infection spreads to the lower border of the mandible?
Marsupialization
- refers to creating a surgical window in the wall of a cyst and evacuation of cystic contents
If you perform enucleation in there anterior maxillary palate region, you have his of causing an oro-antral communication:
True
Which treatment creates a surgical window?
marsupilizaiton
Which treatment involves the use of a rotary instrument to remove bone adjacent to the cystic lining for removal of all residual epithelium/daughter cysts?
Enucleation + peripheral ostectomy
What is the most common type of ameloblastoma you will see in your office?
Multicystic ameloblastoma
Which surgical resection does NOT disrupt the continuity of the bone?
Marginal resection
Most common developmental odntogenic cyst:
dentigerous
if not then OKC!
Compound odontoma will rarely create teeth-like structures.
Complex odontoma found in posterior of jaw.
False; True
What has soap bubble appearance radiographically?
multi-cystic ameloblastoma
Treatment of AOT?
Surgical enucleation
Where does multi cystic ameloblastoma like to hang out?
mandibular ramus
Where does cementoblastoma like to hang out?
mandibular first molar region
