OMS Flashcards
How much bone loss around an implant is possible while still remaining successful?
0.2 mm annually after the first year
Distances an implant must be from other structures to be successful: Lingual cortical plate Maxillary sinus IAN Buccal cortical plate Inferior border of mandible Mental nerve Nasal cavity Adjacent tooth Adjacent implant
Buccal cortical plate: 1 mm Lingual cortical plate: 1 mm Maxillary sinus: 1 mm Nasal cavity: 1 mm Inferior border of mandible: 1 mm Adjacent tooth: 1.5 mm IAN: 2 mm Adjacent implant: 3 mm Mental nerve: 5 mm
Best bone types for implants?
Type 2 and 3
Maximum dose of Epi for a healthy patient
200 micrograms, 0.2 mg
Maximum dose of Epi for a cardiac patient
40 micrograms, 0.04 mg
1:100,000 = ?
10 micrograms/mL, 0.01 mg/mL
2% = ?
20 mg/mL
Ester anesthetics are metabolized how?
plasma esterase
Amide anesthetics are metabolized how?
Liver/hepatic
What is the Verrill sign and what does it mean?
Ptosis, indicates sedative dose has been reached by benzodiazepine
Where is the anesthetic going in a PSA block?
pterygopalatine space
When would you expect dry socket to occur?
3-5 days post-extraction
Which surgical movement of the maxilla is MOST unstable?
inferior movement (think gravity and how the mandible interacts with the maxilla)
How do the beaks of a needle holder compare to a hemostat?
needle holder: shorter, thicker beak
The primary cause of failure of an avulsed tooth is?
external resorption
A patient suffering from oxygen deprivation would show ___ pupils with ____ light reflex.
dilated pupils, no light reflex
Geometry of an elliptical incision:
3X longer than it is wide
Nitrous causes a patients pain ____ to be modified.
threshold
Bleeding under conjunctiva is pathognomonic for ___ fracture.
Zygomaticomaxillary
Where are maxillary third molars commonly displaced when extracting?
infratemporal fossa
The most frequently impacted tooth is?
mandibular third molar
What are the top 3 most congenitally missing teeth?
third molars > lateral incisor > second premolar
Side effect of frequent administration of nitrous to a patient?
peripheral neuropathy
Where should the shoulder of an implant be placed in reference to an adjacent tooth?
2 mm apical to CEJ
Healing times after implant placement for: Anterior maxilla Posterior maxilla Anterior mandible Posterior mandible
Anterior maxilla - 6 months
Posterior maxilla - 6 months
Anterior mandible - 3 months
Posterior mandible - 4 months
When is distraction osteogenesis preferred over traditional osteotomy?
When large advancements are needed the soft tissue may not easily cover
Where is the mandible most likely to fracture?
condyle
How much time should pass between onset of paresthesia and a referral to a surgeon?
4 weeks
Blockage of what vessel is the most common cause of MI?
Left anterior descending artery (LAD)
What are patients experiencing MI given?
Morphine
Oxygen
Nitroglycerin
Aspirin
What are patients experiencing angina given?
Oxygen
Nitroglycerin
Aspirin
How does the lateral ptyergotd muscle move the disk?
anterior, medial
What is the cause of white sponge nevus?
genetics
Most common intra-oral site for melanoma?
Hard palate, maxillary alveolar mucosa
Radiographic appearance of sialolith?
lamellated
“Bumps on the gums” (3)
Pyogenic granuloma
Peripheral ossifying fibroma
Peripheral giant cell granuloma
Where can pyogenic granulomas be found intraorally?
anywhere
What is Ludwig’s angina?
bilateral submandibular, sublingual, and submental space cellulitis.
