Midterm #1 Flashcards
what is a specific periosteal elevator?
9 Molt
what are the three instruments for removing bone?
- bur/handpiece (#8 round, 703)
- rongeur (blumenthal)
- bone file
what are the two straight elevators?
large - 301
small - 34S
what are two examples of pick type elevators?
- crane
- cogswell (heavy)
if a root is going to fracture, which root is better to fracture?
buccal root for max first molars
if bone thicker on the palate or labial side
palate
what is a #17 used for
mandibular molars
what are the sizes of bite blocks?
38-130-50 = large edentulous 38-130-52 = large adult 38-130-54 = adult 38-130-56 = child 38-130-58 = small child
minnesota, autsin, mirror, weider “sweetheart” are all examples of what?
retractors
stillies, allis, russian, cotton pliers, and adison with and with out teeth are all examples of what?
instruments for grasping tissues
when standing during extractions, where should the maxillary arch be?
level with surgeons elbow
you only go behind the patient for ______ molars
mandibular
what are the INITIAL instruments used for extractions?
straight elevators
what is the greatest magnitude of force?
apically
____ is the first and last force
buccal
what do you use the figure 8 approach?
multirooted teeth
you should only drill ____ of the way through the crown and you should go through the ____ floor
- 2/3
- pulpal
what are the qualifications for leaving root tips behind?
-
failure to fully erupt within the expected developmental time period
impacted tooth
not having perforated the mucosa
unerupted tooth
what is the time period for 3rd molars
- crown formation by 14 yrs
- 50% of root formation by 16 yrs
- avg formation is 20-24 yrs
- position does not change after 25 years
what are the different theories for impacted 3rd molars
- differential root growth for mesial and distal roots
- inadequate arch space
- dental development lags skeletal
- obstruction secondary to cyst, tumor, supernumerary teeth
what is the winter’s classification for mandibular teeth
- 43% mesioangular (easiest)
- 38% vertically (easy)
- 6% distoangular (hardest)
- 3% horizontal (difficult)
what is the winter’s classification for maxillary teeth?
-63% vertical
-25% distoangular
-12% mesioangular
-
what is the coding classification for just in soft tissue?
D7220
what is the coding classification for partially bony?
D7320
what is the coding classification for fully bony?
D7240
what is the coding classification for complex fully bony?
D7241
what are the contraindications for extracting 3rd molars?
- acute pericornitis
- actute infections
- ANUG
- herpes
- sinusitis
treat current active process or disease
therapeutic
prevent future disease and other problems
prophylactic
what is the “ideal” patient for 3rd molar extraction?
- 2/3 root formation
- 18-25 years old
- healthy
- no physiologic contraindications
- no job restrictions for a numb lip
local anesthesia used for 3rd molars
- 2% lidocaine with 1:100,000 epi
- 0.5% marcaine with 1:200,000 epi
- V2 and V3 blocks
- long buccal
on a panorex, if the canine is horizontal then it is in the ____ position. if it is vertical it is in the _____ position
- palatal
- labial
an apically positioned flap is best for a ______ impacted teeth
labially
a full thickness flap is best for a _____ implicated teeth
palatally
what is in the take home kit?
- ice
- gauze pack
- emission-basin sedation
- instruction sheet
- no work/exercise instructions
- phone numbers
tinnitus and vertigo are symptoms of the _____
ears
epistaxis is a symptom of the _____
nose
dyspnea, syncope, orthopea, and parasomal noctural dyspea are symptoms of ______
cardiovascular system
hemolysis and frequent URI are symptoms of _____
pulmonary
dysphagia, dyspepsia, hematochezia, stactorrhea, puritis, and montena are symptoms of ______
GI tract
cushing’s dieases and pheochromatoma are symptoms of _____
endocrine system
bleeding should stop between _____
24-48 hrs
are antibiotics warranted for healthy patients?
no
what should you not do for 24 hrs ager surgery?
rinse and exercise
*everything is good after the first day
what is the first stage of inflammation?
vascular phase
vasoconstriction, vasodilation
what is the second phase of inflammation?
celluar phase
tissue trauma triggers serum compliment activation
(PMNs migrate through vessel wall)
when does inflammation happen?
3-5 days
stabilizes the clot, cleans it, prepares it for fibroplasia
LAG PHASE
what are the three phases of wound healing?
- inflammation
- granulation tissue
- matrix formation and remodling
how long does fibroplasia occur for?
2-3 weeks
70-80% as strong as uninjured
stiff and red in color
extraction sockets heal by ______
secondary intention
what happens in week one of extraction socket healing?
inflammation, WBC activity, fibroplasia, epi migration
what happens in week two of extraction socket healing?
granulation tissue, osteoid deposition
what happens in weeks 3-4 of extraction socket healing?
same as week 2, but epithelialization complete, lamina dura RESORBING, trabecular bone
*takes 4-6 months for lamina dura to resorb radiographically
what are the anti resorptive drugs bisphosphonates?
- zometa
- pamidronate
what are the anti resorptive drugs RANKL inhibitors?
- prolia
- xgeva
loss, lysis, or breakdown of the blood clot prior to its maturation into granulation tissue
alveolar osteitis
*dry sockets
what are the two examples of treatment for alveolar osteitis?
- iodoform gauze (antiseptic wound dressing)
- eugenol (IAN)
how long does alveolar osteitis take to resolve?
3-5 days, up to 14 in some ppl
what should you do about wound dehiscence?
DO NOT resuture
*local wound care and will heal by secondary intention
