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d b review > 37. Oral Surgery > Flashcards

37. Oral Surgery Flashcards

1
Q

Contraindications for endodontic treatment

A

Grade III mobility (>2mm: with vertical displacement)
Vertical root fracture
External root resorption

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2
Q

Rx app of vertical root fractures

A

J shape radiolucency or Teardrop

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3
Q

Rx app of Ext root resorption

A

Moth eaten

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4
Q

Pearshape cyst

A

Globulomaxillary cyst

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5
Q

Cyst seen in crowns of impacted tooth; common in Impacted Mn 3rd molars

A

Dentigerous cyst

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6
Q

Other term for dentigerous cyst

A

Follicular cyst

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7
Q

Dentigerous cyst may transform into

A

Ameloblastoma

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8
Q

Ameloblastoma: benign or malignant?

A

Benign tumor but very aggressive

benign bec it cannot metastasize

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9
Q

Rx app of ameloblastoma

A

Unilateral soap bubble appearance

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10
Q

Presents: Angel like face 👼

Rx app: BILATERAL soap bubble appearance

A

Cherubism

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11
Q

BQ: Stage of dev - Supernumerary

A

Initiation

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12
Q

BQ: appositional stage, morphodifferentiation and histodifferentiation happens in what stage?

A

BELL STAGE

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13
Q

Most common supernumerary

A

Mesiodens

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14
Q

Tx for mesiodens

A

Extract asap

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15
Q

“4th molar”

Found distal to the 3rd molars

A

Distmolar

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16
Q

Supernumerary found on buccal or lingual of molars

A

Paramolars

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17
Q

Most common tooth extracted before ortho tx

A

1st PMs

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18
Q

When to extract C-D-4

A

C8
D9
4 asap

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19
Q

Space deficiency indicated for serial exo

A

8mm (boards)

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20
Q

Hallmark of malignancy

A

Anaplasia

Cancer cells - Anaplastic cells; rapidly multiplying

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21
Q

Radiation therapy may cause

A

Osteoradionecrosis of the Jaw (Mn most common)

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22
Q

Anti resorptive drugs; used for pxs with osteoporosis and hyperparathyroidism)

A

Bisphosphonates

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23
Q

Bisphosphonates causes

A

BIOJ - Bisphosphonate induced osteonecrosis of the jaw

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24
Q

Difference between BIOJ and ORN

A

Cause only
BIOJ - Bisphosphonates
ORN - radiation

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25
Q

How to manage BIOJ and ORN

A

Px is exposed to 100% Hyperbaric O2

If hindi effective = excise

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26
Q

Causative agent of acute endocarditis

A

Staph aureus

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27
Q

Causative agent of Subacute endocarditis

A

Strep viridans

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28
Q

Prophylactic antibiotic for pxs with risk of endocarditis

A

Amoxicillin 2000mg

If unable to swallow = Ampicillin

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29
Q

Dosage of clindamycin as prophylactic antibiotic

A

600mg

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30
Q

Clindamycin inhibits what ribosomal unit

A

50s

31
Q

Aminoglycosides (bacteriostatic/30s)

A

Streptomycin
Gentamycin
Tobramycin
Neomycin

32
Q

Adverse effects of tetracycline

A

Hepatotoxic
Photosensitivity
Resistance and superinfections
Tooth discoloration

33
Q

Common immunosupressant drugs

A

Cyclosporins - gingival hyperplasia

Corticosteroids - mimics cortisol (zona fasciculata of adrenal cortex of adrenal gland)

34
Q

When to schedule pxs with controlled diabetes

A

Morning

35
Q

Tx for end stage renal disease

A

Kidney transplant

Hemodialysis: 3x/week (GFR=125ml/min)

36
Q

BQ: Tooth extraction on pxs with end stage renal dse should be done when?

A

After dialysis

37
Q

BQ: Px is under long term steroidal therapy and needs to have tooth exo. What pre-op procedure should be done?

A

Double the dose

38
Q

Limit of epi for hypertensive pxs

A

0.04mg (2carpules)

39
Q

Anes safe for hypertensive pxs

A

Mepivacaine

40
Q

2 LA na hindi na nilalagyan ng vasoconstrictor

A

Mepivacaine - weak vasodilator

Cocaine - already a vasoconstrictor

41
Q

All LA are vasodilators except

A

Cocaine

42
Q

Doc for angina pectoris

A

Nitroglycerin - sublingual

Amyl nitrate - inhalational

43
Q

Sign na magkaka heart attack (fist pressed on chest)

A

Levine’s sign

44
Q

Wait for _____ months after heart attack management before tooth extraction

A

Wait for 6 months after management

45
Q

BQ: Hemophilic pxs have problem with bleeding time or clotting time?

A

Increased clotting time (but normal bleeding time)

Normal clotting time= 8-15mins

46
Q

Christmas dse

A

Hemophilia B

47
Q

Normal bleeding time

A

1-3mins

48
Q

PeT

A

9-13s

49
Q

PiTT

A

25-35s

50
Q

Normal calcium level

A

9-11

51
Q

Inc Calcium levels

A

PTH (secreted by: chief cells)

52
Q

Dec calcium levels

A

Calcitonin (parafollicular cells of thyroid)

53
Q

What is secreted by the follicular cells of thyroid gland

A

T3/T4

54
Q

Most common cause of hyperthyroidism

A

Graves dse

55
Q

Most common cause of hypothyroidism

A

Hashimoto’s thyroiditis

56
Q

Factor 8 deficiency

A

Hemophilia A (A8)

57
Q

Factor 9 def

A

Hemo B (B9)

58
Q

Factor 11 def

A

Hemo C (C11)

59
Q

⬇️ platelets

Both clotting and bleeding time affected

A

Thrombocytopenia

60
Q

Normal platelet count

A

150,000-450,000

61
Q

Lifespan of platelets

A

10days

62
Q

1st trimester of pregnancy

A

Organogenesis

63
Q

Precaution for 3rd trimester of pregnancy bec

A

Baka manganak na

Uncimfortable lying in dental chair

64
Q

Ideal time for tooth exo in pregnant

A

2nd trimester

65
Q

BQ: What kind to drug is 5-fluorouracil?

A

“Anti metabolite drug” - prevents cellular division

66
Q

BQ: How many days stop aspirin before tooth exo

A

7 days stop prior tooth exo

67
Q

Other term for aspirin

A

Acetylsalicylic acid

  • inactive drug
  • inhibits COX
  • blocks formation of thromboxane A2 (reduce blood clot)
68
Q

BQ: dont give aspirin to child with

A

Viral infection / fever = may lead to: REYE’s SYNDROME

69
Q

2 characteristic features of reye’s syndrome

A

Hepatotoxicity and encephalitis

70
Q

Warfarin suppresses

A

Vit K

71
Q

Vit K dependent CF

A

2/7/9/10

72
Q

BQ: Vit K produced in the

A

Liver

73
Q

BQ: Tx for severe pericoronitis (acute inflammation of tissue surrounding a partially erupted tooth)

A

Irrigation using NSS or chlorhexidine

No need for antibiotics

d b review (38 decks)

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