Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

SX #2 > thirds > Flashcards

thirds Flashcards

(77 cards)

Start Studying
1
Q

t/f: all unerupted teeth are impacted

A

false

impacted tooth = fail to erupt within expected developmental time period

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

4 theories behind impacted thirds

A

mesial/distal roots grow differently

inadequate arch space

dental development lags skeletal development

obstruction secondary to cyst, tumor, supernumerary

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

which is slower: dental or skeletal development

A

dental

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

winters classification based on..

A

inclination of tooth to long axis of 2nd molar

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

percentage mesioangular

A

43%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

easiest angulation to extract

A

mesioangular

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

distoangular percentage

A

6%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

most difficult to extract

A

distoangular

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

horizontal impaction percentage

A

3%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

vertical impaction percentage

A

38%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

can you use winter’s classification for maxillary teeth

A

yes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

maxillary vertical impaction %

A

63%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

maxillary distoangular impaction %

A

25%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

maxillay mesioangular impaction %

A

12%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

what impaction is rarely seen in maxillary

A

horizontal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

D7220

A

soft tissue

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

D7320

A

partial bony

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

D7240

A

full bony impaction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

D7241

A

complex full bony

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

2 indications for third molar removal

A

therapeutic or prophylactic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

t/f: asymptomatic means disease free

A

false

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

t/f: pathology is always present before symptoms appear

A

true

once damage has occurred, it is not always treatable

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

7 year study

A

Advised that even most 3rds that are asymptomatic and free of disease are at risk for chronic oral infections and tooth decay and should be considered for removal in young adulthood

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

AAOMS advocacy white paper

A

supports elective, prophylactic removal of impacted thirds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
12 indications for removal
``` pericoronitis caries pathologic resorption pathology eruption pain crowding post-ortho orthognathic sx in line of mn fx perio dz lack of attached gingica crowding ```
26
crown formation of 3rds
14 yrs
27
50% root formation
16 yrs
28
after 25 years, third molars...
position does not change much
29
ideal pt selection: root formation?
2/3 root formation
30
ideal pt selection: age?
18-25
31
if pt has a job restriction to "numb lip" (like professional musician or something)
contraindication to 3rd removal
32
why is young age a contraindication to 3rd removal
jaw may grow to accomodate
33
what is the most common contraindication
old age
34
why should you not remove 3rds on ppl over 40
``` calcified bone less flexible bone slow healing mn fx parasthesia osteomyelitis ```
35
first step in 3rd molar consutl
1. gather data in systematic fashion | CC, HPI, Med hx
36
second step in consult
2. physical exam | IVSA/GA?, erupted?, decay/perio?, probe depths, operculum?
37
third step in consult
pano condylar anatomy, pathology, level of impaction, must be w/i 1 yr
38
how current must pano be
less than one year old
39
fourth step in consult
start with basics--explain why they need surgery, show them the X-rays explain IV sedation, NPO, escorts post-op concerns
40
how long is expected recovery period
3-4 days
41
expected level of post op pain
mild-moderate
42
when does swelling peak
day 3
43
discuss risks or benefits of sx first?
benefits! then explain risk
44
what do you need to DOCUMENT!
probing depths detailed clinical/radiographic findings pt education (risks, benefits, indications) consent (AAOMS vidos, written, verbal)
45
where is the no man's zone
lingual to mandibular 3rd
46
mesioangular impaction: you separated the mesial/distal roots, which should you elevate out first? according to pics
get distal root out first
47
vertical impaction: where to section
make weird oblique line on crown? look at pic
48
horizontal impaction: where to section
section M/D roots, then try to take the one out on top first
49
distoangular impaction: where to section
take off crown, then separate roots, then get most distal root
50
proper elevation technique
be judicious; employ controlled arts of force along the long axis of the tooth
51
what if you meet a lot of resistance when trying to elevate or path or withdrawal does not exist
remove more bone or divide tooth into small segments
52
what should you never do when elevating
use excessive force
53
after extracting roots you should
inspect to make sure you got the tips inspect socket for retained fragments
54
if you hear a snap or crack..
a root has failed until proved otherwise
55
socket care immediately after ext:
remove bone remnants remove soft tissue with poor vascularity curvetted socket and remove follicle
56
who's responsibility is it to make sure there is no debris in socket or under flap
yours, not assistant
57
excessive suturing leads to..
swelling
58
intraoperative complications (5)
``` hematoma gingival compromise injury to adjacent teeth and osseous structures lacerations burns ```
59
maxillary complications
loose tooth in infratemopral fossa tuberosity removal oops oroantral communication
60
mandibular complications
root tip in lingual iplate submadnibular/lingual nerve injury mandible fracture
61
intraoperative bleeding management
give local bone wax gelfoam surgicel pressure pack if needed
62
sinus perforation tx
``` antibiotic decongestants afrin nasal spray written and verbal instruction suture TIGHT follow up ```
63
nerve injury protocol
``` DOCUMENT!! steroid dose pack neurosensory testing when to refer? malpractice? ```
64
post operative complications (5)
``` dry socket secondary bleeding subperiosteal abscess retained root tips infection (RARE) ```
65
dry socket symptoms
fetid breath very bad pain that radiates to ear 3-5 days post op
66
when does dry socket pop up
3-5 days post op
67
who is most at risk for dry socket
female older than 40 who has taken steroids, had a prior infection or had a long operative time
68
secondary bleeding management
``` suction oral cavity examine site apply pressure for 5 mins local anesthetic curettage identify bleeding ```
69
how long to monitor patient with secondary bleeding before discharge
15 mins
70
when does a subperiosteal abscess occur
2-3 weeks post op
71
subperiosteal abscess management
flap and irrigate abtcs will be difficult to get good LA
72
when to take post op pano
pt comes back after more than a week, suddenly worse...potential for retained tip or foreign object
73
what is osteomyelitis, what does it result in
odontogenic bacteria invade bone marrow results in ischemia and bone necrosis presents with inflammation and edema
74
where is osteomyelitis most likely to occur
mandible
75
why does osteomyelitis occur
smokers end stage of long wound healing immunocompromised
76
acute OM symptoms/signs
duration of less than 1 month painful minimal to no radiographic changes
77
chronic OM symptoms/signs
greater than one month dull discomfort parasthesia moth eaten appearance of bone

SX #2 (6 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions