Final Studyguide Flashcards
As odontogenic infection progresses from early to late stage, anaerobic bacteria make up the late stage infection almost entirely.
Streptococcus is the main bacteria that makes up aerobic bacteria.
True; True
A patient that is a heavy drink/alcoholism has decreased immune function.
A patient with impaired renal ability has decreased immune function
True; True
Incision and drainage is a contraindication for treatment of cellulitis.
There is a chance of spread of infection from surgical intervention.
False; I&D specifically = false but if surgery in general = true
Signs of inflatmmation- trismus comes from pterygomandibular.
True
18yoM comes to your office- swelling is firm to touch, large radiolucency on X-ray. What is the next step:
Aspirate
Which of the following does NOT describe cellulitis:
Localized collection of pus
What is the main thing you want to do in treatment of any odontogenic infection?
Identify and and excise cause of infection
Bacteriostatic antiobiotic is better than bacteriocidal.
False- bacteriocidal KILLS
A patient comes in with a 5mm ulcerated 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 there is not tumor cells
List the PRIMARY MAXILLARY spaces:
Canine
Buccal
Infratemporal
Max says: Carry Buys Igloos
List the PRIMARY MANDIBULAR spaces:
Buccal
Sublingual
Submandibular
Submental
Manny like subs and booty
List the secondary fascial spaces:
Lateral pharyngeal
Retropharyngeal
Masseteric
Pterygomandibular
Superfical & Deep temporal
Prevertebral
Any infection near the maxillary first molar will most likely spread to:
Buccal space
Which of the following does NOT use an extraoral approach to drainage:
Infraorbital - this uses intraoral approach
The ___ separates the sublingual and submandibular spaces
Mylohyoid muscle
When a patient comes in with swelling and you are unable to palpate the borer of the mandible, what space is most likely involved?
Submandibular
(there is likely fluid under the mandible making you unable to reach it)
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 do not 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 extent 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
Ludwigs angina spaces:
- Sublingual
- Submandibular
- Submental
NOT SUBMASSENTERIC
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 pan early on
-extensive pain later on
Involucrum:
Dead bone surrounded by viable bone
A layer of new bone growth that forms around existing bone in response to infection
Garre’s osteomyelitis is also known as;
Chronic refractory osteomyelitis
-proliferative periostitis
-periostitis ossificans
What is the only form of osteomyelitis that you would use a HBO therapy:
Chronic refractory
____% 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 is reccommended initially)
What is not part of the surgical treatment for osteomyelitis?
What is: sequstrectomy, saucerization, decortication
answer for what is not started with T
A patient comes in and has a persistent lesion after 5 days with no apparent etiology. Take surgical approach after two weeks if local therapy has not worked
True
Indication for excisional biopsy:
(Excisional: total excision of a lesion for microscopic study)
- slow growing lesions that appear benign on clinical examination
- removal of entire lesion
Indications of incisional:
- Lesion too large to remove entirely without having established diagnosis
- suspicion of malignancy
In which instance would you use an incisonal biopsy?
a) 4cm white lesion on the boarder of the tongue
b) 1.5cm lesion of papilloma
c) a 2cm bony exostosis lesion
4cm white lesion on the boarder of the tongue
What size of needle is used for aspiration in our OS department?
18 gauge
Biopsy is transported in what medium?
10% formalin
Immunofluorescent biopsy is transported in what medium?
Michel’s transport medium
What is Carboy’s solution used to treat?
OKC
Why are OKC’s recurrent?
Satellite/daughter cells
Which one is derived from the dental lamina?
OKC
(Also: dental lamina cyst of newborn, lateral periodontal cyst, glandular cyst)
What cysts are derived from rests of Malassez?
Periapical cyst
Residual cyst
What cysts are derived from reduced enamel epithelium?
Dentigerous cyst
Eruption cyst
What is the best treatment for a 60yoM whose cystic infection spreads to the lower boarder of the mandible:
Marsupialization
= Creating a surgical window in the wall of the cyst & evacuation of cystic contents
If you perform enucleation in the the anterior maxillary palate region, you have a risk fo causing an oro-antral communication:
True
Which treatment creates a surgical window?
marsupialization
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 that you will see in your office?
Multicystic ameloblastoma
Which surgical resection does NOT disrupt the continuity of the bone?
Marginal
Most common developmental odontogenic cyst?
Dentigerous cyst
if not option OKC
Compound odontoma will rarely create teeth-like structures.
Complex odontoma is found in the posterior of the jaw.
False; True
Which one has soap bubble appearance radiographically?
Multicystic ameloblastoma
Treatment of AOT:
surgical enucleation
Where does multicystic ameloblastoma like to hangout?
Mandibular ramus
Where does cementoblatoma like to hang out?
Mandibular first molar region
